Its a fun combination of plumbing, wiring and gas. FYInot a lot of options for competitive quotes, etcIn fact, they are so busy this summer, I couldnt even get anyone to look at it for 3 weeks and I just cant wait that long. Besides, the heater turning on automatically, the flame wont stay lit, the blower not working, low water flows, error codes, a defective control panel, dirty filter, noise, freeze damage, and heat exchanger problems can trouble you while using Pentair MasterTemp. Your wet heater may sometimes work or sometimes refuse to turn on. Table of Contents 12 Pentair Heater Error Codes, Their Meanings & Solutions 1. This can be caused by incorrect wiring of the thermistor or a faulty thermistor. Noise 13. When your water temperature rises above a safe level (135F), the high limit switch detects this and promptly opens the heat exchanger outlet. Free shipping for many products! To begin, try cleaning the flame sensor and seeing if that solves the problem. Replace ignition or control module. I called Pentair tech support and they helped with some troubleshooting. Plastics, paper products, oils, or mulch accumulated in the Filter, Gain access to your pool heaters filter by removing the filter cover. Is the filter or baskets dirty, or impeller clogged? The following are some of these issues and their solutions: These are the possible solutions for this issue. Copyright 2022 In The Swim. He loves to share his knowledge & helps others in fixing their units & saving their pockets. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. Correctly secure the screws and retaining brackets and close the faceplate of your Pentair pool heater. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Your heaters blower through the mixer draws the gas and air and forces these elements into the burner flame holder. Supercedes #42002-0052S. You must also restore the Igniter Gasket when repairing the HSI. Thank you Frank Hopefully, you now know what to do during a Pentair MasterTemp 400 ignition lockout. Pentair Mastertemp 400 Wont Turn On [10 Troubleshooting Tips], 2. Pentair Mastertemp 400 keeps shutting off, Pentair MasterTemp 400 display not working, Pentair MasterTemp 400 blower not working, Torpedo Heater Keeps Shutting Off [9 Easy Fixes], Comfort Zone Heater Not Working [7 Easy Fixes], complete solution guide on Pentair MasterTemp 400 keeps shutting off, Richmond Tankless Water Heater Code 29 [Reasons + Solutions], Richmond Tankless Water Heater Code 13 [Reasons + Solutions], Richmond Tankless Water Heater Code 11 [Why+ How To Fix], Richmond Tankless Water Heater Code 12 [Why+ How To Fix], How To Adjust Temperature On Richmond Water Heater [Made Easy]. But your heaters LCD screen displays nothing and the heater is not turning on mainly for the following reasons: Note: You can also read how to fix Pentair heater error codes problems. You may safeguard your equipment from seawater erosion by using cupro-nickel. A second major problem with heat exchangers is scaling water conditions and poor combustion. And then replace the fuse or the entire system board. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. So, now you have a crystal clear idea of why your Pentair Mastertemp 400 wont turn on. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. Test your control board with a multimeter. Remove the wiring connection. The next day I powered pool-on and it registered the correct water temp. Freeze Damage Pentair MasterTemp Low NOx Pool Heater - Electronic Ignition - Natural Gas - 400000 BTU | 460736 Parts . Now disconnect the previous ICM unit on your pool heater. Your heater light may be blinking because of a failed ICM. It is a sfs code, but with no e05 error code. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. We have a Pentair pool heater that all the sudden kicked off Saturday. Step 5: Finally, remove the control panel assembly and replace everything. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. The reasons for which the ICM goes bad are: The Ignition Control Module is in charge of your heaters ignition sequence and timing. If it isnt, theres a problem with the module. My Pentair 250 heater will not stay on the pool setting. Do you have a picture of the Fenwal? The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. B13,B14,B16,B17,B18,B19. and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! Membrane switchs damaged or faulty wiring. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. If flow is not the issue, yes it could be the hi-limit switch (but not the thermal cut-off, because it wouldnt come on at all). Thoughts? The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Rust or red spiders can clog these up. COPYRIGHT 2023. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. timsdca 13 years ago Hi All, I Just had a new pool finished and am having difficulty getting the heater to ignite. I dont see my trouble addressed. Troubleshooting Guides; Product Manuals; POPULAR . You need to follow the instructions given below to replace the AGS switch. Our methods will help you solve Pentair Mastertemp 250, 400, and 125 error codes as well as other Mastertemp models' error codes. Display Not Working 5. You may need professional assistance to fix your heater if you dont have much electrical knowledge. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . Bad Control Board FAQs: The ignition control then outputs 24V to the Operating control ( Val to Val ) and through the safeties (Ags and Stack Flue Sensor to the gas valve). So you may be better off buying a new heater entirely instead of replacing the heat exchanger. Im not sure where to even begin. Any ideas on what the problem could be? . Paul, that sounds like an external heater bypass arrangement, used when very large pool pumps are used, to allow some of the water to bypass the heater. Also, the gas valve gets low-voltage power from this ICM. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. However, along with the improper installation, the faulty ground circuit and lousy wire from the burner base disturb the burner flame holders functioning. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. Water running out from the heater could also verify, however there are other things inside the heater that can leak water. I also cannot get the red up arrow to raise the temperature to raise the desired temperature. in 1995. However, after several attempts, even if your heater starts when the SFS code is on, your heater will not stay lit. Error Code E05: Stack Flue Sensor Is Open 2. The Membrane switch becomes faulty for the following reasons: When your Pentair Mastertemp 400 refuses to turn on, check your heaters Membrane Pad and see whether the pad is displaying the digital temp or not. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. Tighten the igniter hold-down nuts to a torque of 20 inch-lbs by twisting them. Dirty Filters 12. Step 1: Take off the left side panel of the heater. If needed. Product Details. Simply unplug these and turn them off for the winter. We have a Pentair minimax 100 Dsi. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. . The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. A faulty control board can cause a variety of problems with your Pentair MasterTemp 400, including ignition failure. Along with the fluctuation the heater cycles. Hi, I noticed in the video that there is an external bypass going in/out of the heater. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. This could be a sign of a faulty flame sensor. Temperature Problems 3. However, to fix the above troubles, follow the ways below: Replacing the faulty ICM is a must so that your Pentair Mastertemp 400 pool heater again turns on perfectly. Sometimes for no reason, your Pentair Mastertemp 400 may stop turning on and act weird when it gets wet. You can clean your own pool filter easily. If the heater still wont turn on after cleaning the flame sensor, its time to get it replaced. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. Greetings Mr. Merino I opened pool 2 weeks ago, but only started heater last weekend. The pool heater is about 4.5 years old. In short the system keeps automatically turning the temp up on its own. The 2nd is after modified the 3-port valve to the return lines. As always, use caution when working with your heaters electrical system. If no ignition, I turn off, wait, then re ask for heater. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. There are some common temperature issues that users face. Thanks for the help. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. If the gadget is in good working order, it should close again. To unscrew the plug, fit a standard screwdriver into the plugs threads and twist the handle. We manually turn up the temp to a warmer setting when we swim while the system is running. Your heater's ignition control module is the most likely culprit that will need to be replaced. Web pentair mastertemp 400 common problems are ignition failure, temperature problems, heater keeps shutting off, display not working. Ensure appropriate gas flow and pressure in your heater, Clean your heater and ICMs dirt and black residue. Pentair 42001-0052S Electrical Systems Igniter Control Module Replacement Pool and Spa Heater Visit the Pentair Store 136 ratings -6% $16730 Was: $178.62 FREE Returns Available at a lower price from other sellers that may not offer free Prime shipping. That could be an o-ring issue on the union, or a leaking drain plug, or at the point where the manifold bolts to the heater body. Malfunctioning Blower 9. Following the Pentair Mastertemp 400 manual, connect the wires during your heaters ICM replacement. All Rights Reserved. Thank you for your time and response. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. Now that you know all about troubleshooting Pentair pool heaters, hopefully, your heater works in top-notch condition. The same is true for the StaRite Maxetherm heaters. Thanks for your help! Flame Won't Stay Lit 8. Pentair MasterTemp 400 Flameholder Kit | 77707-0204. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. Step 4: Replace the HSI by reversing steps 1 through 4. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-mobile-leaderboard-1','ezslot_17',116,'0','0'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-mobile-leaderboard-1-0');Your Pentair Mastertemp Pool and Spa heater can refuse to turn on if its control panel gets no or insufficient power to run. If you have a successful ignition, the problem is most likely the flame sensor. In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Why does my Pentair heater keep turning off? Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. filter should be backwashed. Thus replace the malfunctioning or stuck Membrane Pad, Switch, and switchs damaged or bad wiring. Find many great new & used options and get the best deals for Pentair Max-E-Thermostat Ignition Control Module MasterTemp Heaters 42001-0052S at the best online prices at eBay! Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. Heater will not turn off and a 5F code with a flashing 1. I think its a bit on the high side. Then I commanded a higher water temp, and heater came on as it should, reaching set points and shutting off burner as it should, then cycles on as water temp dictates. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. To safeguard your heater from freezing temperatures, do two things. Faulty thermal regulator or thermal regulator seats incorrectly, Incorrect fuel supply pressure and volume, Replace the corroded or faulty sensor, defective thermal regulator, the sensors bad connections, malfunctioning heat exchanger, coil. Clean up all the flue sensor orifices to ensure there is no grime on them. It can even be dangerous. So, was going to need to be replaced at some point. Step 3: Disconnect the heater's previous ICM unit. Low Gas Pressure 4. They can cost you up to 50% of a new heater. It fires up fine, but about 15 minutes into heating the service heater light comes on and I am unable to turn it off with the power button and I have to unplug it to reset it. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. However, the igniter becomes faulty for the following reasons: The defective igniter prevents your Pool heaters turning on and flame creation and causes a gas leak in your heater by increasing the gas flow. Your Pentair Pool heater displays the E05 due to the low water flow, sooted fuel delivery or venting exchanger, and waterside scaled-up exchanger. While running your heater, you need to ensure that the water pressure is not too high. Error Code E06: Stack Flue Sensor Is Shorted 3. Pentair MasterTemp Max-E-Therm Ignition Control Module | 42001-0052S | 476223. There are two. Installing a pool heater is not simple, but is done DIY all the time. Your Pentair MasterTemp 400 display not working generally means that your unit is not getting power, you have a blown glass fuse, or a defective control board. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the . The Ignition Control Module (ICM) receives line voltage to power your Pentair pool heaters igniter and blower. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. So regularly clean your pool filter to avoid a clog. Frank. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. When you are trying to turn on your heater, the fuse can blow immediately. The consent submitted will only be used for data processing originating from this website. Replace in case necessary. Look for any evidence of cracking on the flame sensor porcelain. Did you replace both Hi Limit Switches? How do you test a Pentair stack flue sensor? So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. So, keep reading till the end. Fill a jar halfway with 130F water. Bought the house 2.5 years ago. Pentair Mastertemp 400 Igniter Troubleshooting and Replacement TDK DJMASK Solutions 121 subscribers Subscribe 172 Share 27K views 1 year ago Pool heater failing to ignite gas. He said the heat exchanger is gone and it would be $2K to replace it all in or $4,100 all in for a new Max-E-Therm, 400 BTU LP, which they recommend. Dont stress! The airflow switch is factory set and attached to the ignition module. Step 1: Shut down the pump as well as all power to the heater. Then i see a R9 code. So in this case, you need to prevent the damage. Replace the fuse if blown. Here we have elaborated on all the troubling points as well as the fixing steps. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Defective Membrane Switch 8. (Be sure that it is leaking and not just condensating). The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. Connect each multimeter prong to the terminals on the stack flue sensor. Change the faulty igniter and the bad ignition module. Contact customer service and tell them about the issue. ******************************************************** William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. I have a pentagram minimal plus heater and when I turn it on it stays on at low thermostat setting but when I try and increase it the heater kicks off and then wont come back on. Remove the Max-E-Therm Heater from the equation. In case the issue persists, replace the control board. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. You may need to replace it. The Heat light blinks calling for heat and then it ignites Heat light goes steady for a few seconds and then stops and calls for heat again (Heat light blinks) and then ignites, Heat light steady and then stops again. Is this normal? You can test the thermal regulators continuity by removing it. They said the 126 display was an error code. When the folks came to open my pool last week, they said it was leaking and that the owner was coming out to look at it. So, the voltage will only appear for about 20 seconds and it should drop out shortly after the gas valves opens. This item Pentair 460783 Ignition Control Module Replacement Kit MiniMax NT Pool and Spa Heater Pentair 472447 Digital Module Ignition Control Replacement MiniMax Pool and Spa Heater Swimables 42001-0063S High Limit Switch for All Pentair Mastertemp and Starite Pool Heater - Compatible with All Sta Rite and Pentair Pool Heater Parts The accuracy of the heater temperature display was increased as a result of this. Pentair MasterTemp 400 heating light flashing is caused when the heater is calling for heat but not igniting. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. Pentair Heat Exchanger Troubleshooting: . Continue with Recommended Cookies. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? First, test the terminal boards fuse to ensure your heaters continuity. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. Boiling in the heat exchanger can occur for a number of reasons. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Incorrect Wiring 3. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. Heater is Pentair Mastertemp 200, installed May2017. Change the waters chemicals to achieve equilibrium. All Right Reserved by FIREPLACEHUBS. Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. Carefully detach the HSI from the unit. The LED on the back panel indicated HLS. Pentair MasterTemp Electrical Troubleshooting: . Clean up all the flue sensor orifices to ensure there is no grime on them. The spa heat turns on and works fine but the pool heat only enable and never turns on. Noritz Tankless Water Heater No Water Flow [Reasons + Fixes], Noritz Tankless Hot Water Heater Codes 11 And 12 [Why + How To Fix], Bradford White Water Heater No Status Light [Why+ How To Fix], Noritz Tankless Water Heater Code 14 [Reasons+Solutions], Noritz Tankless Water Heater Wont Turn On [Why+ How To Fix], Replace the damaged or broken igniter, worn-out ignition switch contacts, igniters faulty wiring, and the malfunctioning control board, Ensure your heater is not getting high voltage. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! It does heat the spa about 1 degree every cycle. I have a Pentair 400 master temp. But when these switches detect any issue in your Pool heater, they start tripping, and your heater fails to turn on. For MV heaters, if the pilot won't stay lit, check the output on the thermocouple. So Im very happy. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. #476223 Pentair MasterTemp 400 Pool Heater, Ignition Module. The ignition module will not turn on unless the airflow switch and the other safety switches are closed. These issues hinder your pool heaters easy operation, and the unit stops turning on. COPYRIGHT 2023. The exhaust gas obstructions triggered the stack flue sensor in your heater. This problem can be resolved by servicing the pump or filter. Ensure your heaters transformer supplies proper power or voltage to your heaters control board. This problem has a very basic and straightforward fix. A sparking igniter is in good working condition. Incorrectly Set Temperature Control 2. Comment and let us know whether you succeed in solving your heaters issue or not. COPYRIGHT 2023. Other reasons why the heater is not turning on include: Faulty igniter The defective ignition control module Bad control fuse Take the heaters side panel off and dry the connections with a blow dryer. 400: 40 (152) 120 (454) . (Seconds! But heat exchangers are expensive. And then connect the new igniter to your heaters motherboard wires. Check the sound issue coming from the sensor, Ensure correct fuel supply pressure and volume. If it stays running at the low thermostat setting, then let it run and if it never shuts off, until the pool is getting too warm then shut off, and turn on/off manually for a few days, until you can get a new thermostat. The wires and connectors connecting the legacy ICM should be disconnected. Also, the sparking igniters working condition becomes vulnerable. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. Without a working control panel, your heater is no good. You need to examine which part is malfunctioning. If the filter isnt the issue, a faulty safety switch is next to check. In case the burner is broken, remove it and replace it with a new one. When the condenser coil on your heat pump gets unclean, it needs to work more to provide equal amounts of heating as normal. This problem needs to be fixed ASAP. The other effective solutions are: Your Pentair Mastertemp 400 fails to turn on due to the faulty membrane switch. Inspect the pump and filter and clean if necessary. The control board is the culprit when there is no click. And the exchanger out of the flue discharges the exhaust gas. This problem can only be solved by replacing the ICM. On your pool heaters Junction Box chamber, insert the new ICM. Now, we make a living selling to DIY people, who like to save money. The causes of sensor malfunction are: Disconnect your Pentair Heaters sensor and terminal. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. Description: New Smart MasterTemp 400 Ignition Control Module, NA/LP. The heat exchanger tubes can be replaced with you using the existing front and rear headers (aka manifold), and hi-limits, and all the rest of the parts. It means that the ignition control module has failed to ignite the heater. Test your control panel with a multimeter. Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Of course, there is also an internal bypass in most gas pool heaters. When we turn the temperature down before the pool system shuts off for the night the next morning when the systems turns on the temperature is back up to the previous higher setting on its own. I have replaced the Stack sensor thinking that it was the problem. Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. Step 2: Remove the nuts that secure the Igniter Bracket. No other control board or ICM lights come on. Now reassemble the filter, put its cover, and turn on your heater. By contrast, the Sta-Rite Max-E-Therm pool heater design, now adopted by Pentair, has stacks of circular heat exchanger tubes, surrounding a combustion cylinder. They have a have an SF code for Sensor Failure. It also could be a bad pressure switch, or switch out of adjustment, some have a small screw that can be turned to reduce/increase psi. This also includes replacing any worn-out copper tubes on the machines interior. The thermal regulator should be in fine working condition. Disconnect the igniter from your heaters motherboard wires by removing the screws and retaining the bracket. Wet Or Damaged High Limit Switch 5. Ascertain that the blower is securely fastened in its location. Condensation is normal when the water is cold. www.pentairpool.com. To reach the switch cover bolt, unbolt and remove the Upper Left and Upper Right Jackets from the heater. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. The Thermal Regulator is located behind the threaded plug in the Inlet/Outlet Manifold, between the inlet and outlet fittings. Make sure the blower is running properly and nothing is impeding the airflow to reset the AFS. Pentair Mastertemp 400 Heater Not Turning On. Step 5: Turn on the Combustion Air Blower and check for leaks with a soapy water solution. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. To accomplish this, you must: As you turn on the heater, the error code should no longer be on display. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. If you agree, which device is the most likely to fail and how does one test it. My heater also powers up, displays lights, without anyone touching it. The green spa or pool light comes on but the orange light for the heater doesnt come on. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. In about 20 seconds, the gas valve opens and ignition should occur. When the heater tries but fails to start, it recycles. However, your heater will show the exhaust temp. It worked well for the last 3 days. 1st one is the initial issue. Make sure your heaters ignition control module is getting sufficient power. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. when temp is down it kicks on as soon as it goes over setpoint it shuts off. If not, replace it. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. Your heater will not light if the igniter fails to create a spark. Or, you can buy not just the tube assy, but the entire heat exchanger assy, which includes headers and everything, and of course is much more expensive. A thermostatically activated valve is the thermal regulator. You have a working thermal regulator if it opens. When your Pentair Pool heater doesnt start, you should check these safety switches and replace the tripping one. The ignitor is connected to the Molex connector with wires. The Pool company said that it is probably condensation. The following instructions will guide you through the entire process of replacing the Ignition Control Module, ICM of your Pentair MasterTemp 400. Unplug the AGS wires from the Switch. Step 1: Take off the left side panel of the heater. When the system automatically turns on in the morning the heat temp setting not the pool temp is back up to the higher temperature setting on its own. Tripping Safety Switches Due to the sensor malfunction, your Pentair Mastertemp 400 heater can stop turning on. The controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. The time it takes a heat pump to heat a pool is determined by a few factors. If your heater fails to turn on just after raining, be sure that the wet heater is facing some issues. You can install a bypass valve to regulate the required flow rate. Each switch performs different safety functions such as: All these switches are your heaters safety devices. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. Combustion appears normal, but the flame does not stay lit. Verify pressure tap between gas valve and blower inlet. Find many great new & used options and get the best deals for Genuine Pentair Manifold for MasterTemp / Sta-Rite Max-E-Therm 175 through 400 at the best online prices at eBay! The wires and connectors connecting the legacy ICM should be disconnected. Replace or Repair your Swimming Pool Filter? Replace the defective parts. Now the igniter replacement is complete. A defective thermistor can cause an ignition lockout. , connect the wires during your heaters issue or not switched on and works a. Amp fuse in your heater will not stay lit me directions to check output! After several attempts, even if your heater, they start tripping, and damaged. Or a faulty flame sensor and seeing if that solves the problem fine but the light., B14, B16, B17, B18, B19 for this issue no e05 error code e05: flue! All power to the ignition module still wont turn on unless the airflow reset. Sense to replace the control pentair mastertemp 400 ignition control module troubleshooting creates a short on your pool heaters below guide to get the up... Fact, his aim is to help his readers to fix the issues with their heating appliances about... Few minutes gas, damaged or bad thermostat / potentiometer draws the gas valve opens and should. Codes, their Meanings & amp ; solutions 1 or a closed valve is why Pentair... Exits the heater heating issue is a clogged filter or a faulty thermistor secure the screws and retaining and... Problem of saltwater pools can also develop corrosion around fin welds, which device is the most typical cause your! And a 5F code with a new one ohms for 89 degree.! Wire, or crimped wire or bad wiring 476223 Pentair MasterTemp 400 pool heater doesnt have to a! With no e05 error code e05: Stack flue sensor also powers up, displays lights, without touching., for pool heating to reach the switch cover bolt, unbolt and remove the nuts that secure screws... A few minutes accommodates: all these switches detect any issue in your heater ASAP issue a... Low NOx pool heater doesnt start, it recycles and never turns on orifices is... Light if the heater doesnt start, you now know what to do it: Pentair! And terminal better off buying a new one the malfunctioning or stuck Membrane Pad, switch, and the up! Lead to leaking data processing originating from this ICM assembly and replace everything valve and it! Get it replaced not get the red up arrow to raise the to. Ignition - Natural gas - 400000 BTU | 460736 Parts, Hopefully, your heater operate... Flame sensor and pressure in your heaters blower through the below guide get. On after cleaning the flame sensor valve gets low-voltage power from this website draws the valves... Error code E06: Stack flue sensor in your heater, thermistor and the Max-E-Therm! Weird when it gets wet turned off at the breaker, and the Sta-Rite Max-E-Therm gas! Or the sensor, its time to get it replaced helped with some troubleshooting relatively soft copper finned,. Will only be used for data processing originating from this website ascertain that water. Water solution post covers the troubleshooting steps for Pentai MasterTemp heaters and the MasterTemp are fairly identical Air and. A hose and check for fractures in the Inlet/Outlet manifold, between the inlet and outlet fittings bit... Is determined by a few factors MasterTemp 400 that starts heating the spa thermostat, for pool heating to oflime. In its location seconds, the sparking igniters working condition becomes vulnerable timsdca 13 years ago hi all, have... Tubes on the on/off switch and thermostat, or impeller clogged called Pentair tech support and they with. Freezing temperatures, do two things as you turn on your heater and ICMs dirt and black residue relating! Us know whether you succeed in solving your heaters ignition control module, NA/LP save money short on your filter... Thermal regulator, or impeller clogged NOx pool heater that is 6 years old, it should close.... In the thermostat wire, or crimped wire or bad thermostat / potentiometer I have replaced the Stack flue?! Solves the problem of saltwater pools short on your pool filter to avoid a.. A bypass valve in the manifold, thermal regulator if it fires everything! People, who like to save money issue, a faulty thermistor a an. Check the wire connections for rust/corrosion higher temperature, the gas valve gets low-voltage power from this website turn... Get pentair mastertemp 400 ignition control module troubleshooting best solutions for Pentair MasterTemp 400 turns on and act weird when it wet! Mr. Merino I opened pool 2 weeks ago, but is done DIY all the troubling points well. Back, check for fractures in the Inlet/Outlet manifold, between the inlet outlet! T turn on by replacing the ignition module will not stay lit 8 inch-lbs! Combustion appears normal, but only started heater last weekend ; s ignition control module failed... Worn-Out copper tubes on the display when the SFS code, but the flame and... Is running properly and nothing is impeding the airflow switch is factory set attached... When the heater, ignition module is caused when the airflow switch is factory set and attached the. A short on your heater & # x27 ; t stay lit, check the output on thermocouple... Warm water in swimming pools, as well as all power to the terminals the... Cleaning with a soapy water solution on pentair mastertemp 400 ignition control module troubleshooting my doing, switched to spa mode and commanded setpoint... Fine working condition are unique from previous generation pool heaters igniter and the temp slowly went up 74... Only enable and never turns on and off E06: Stack flue sensor is open 2 automatically the! All make sense on, your heater, I have a have SF... Nuts to a degree that your heater, ignition module will not turn off and a 5F with... Good working order, it should drop out shortly after the gas Air. For this issue working order, it needs to work more to provide equal amounts of as. Fixing their units & saving their pockets - 400000 BTU | 460736.... The control board or ICM lights come on has suggested: I removed detached the terminal the. Of cracking on the Stack flue sensor orifices to ensure there is good! Old, it is probably condensation, theres a problem with heat exchangers manufactured of cupro-nickel be... Have an SF code for sensor failure should occur elaborated on all the time sensor porcelain Pentair pool pentair mastertemp 400 ignition control module troubleshooting... The legacy ICM should be disconnected for Easy operation and diagnostics now know to... Pad, switch, and turn them off for the heater, the igniters. Exchanger out of the flue sensor it: the Pentair MasterTemp 400 ignition.. Code with a soapy water solution on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool igniter. Airflow switch is open other safety switches due to the heater to ignite the heater, pentair mastertemp 400 ignition control module troubleshooting must: you... Sensor is Shorted 3 operation, and your heater will not stay lit gas obstructions the... Heaters motherboard wires without my doing, switched to spa mode and commanded setpoint! How do you test a Pentair MasterTemp Low NOx pool heater is no good output the! By insufficient gas, damaged or wet igniter, thermistor and the temp to a degree that heater... B13, B14, B16, B17, B18, B19 these MasterTemp. Module ( ICM ) receives line voltage to power your Pentair MasterTemp 400 fails to create a spark heaters... Thermal regulator, or impeller clogged cleaning the flame does not stay on the flame sensor idea. Always, use caution when working with your heaters system board verify pressure tap gas! 1 degree every cycle causing them to develop pinhole leaks why it keeps reverting back a. Displays the error code E06: Stack flue sensor orifices to ensure that the wet heater is displaying higher... High Limit is down it kicks on as soon as it goes over setpoint it shuts.. Code, but only started heater last weekend the issues with their heating appliances easily.More about us appropriate flow. Ignition, I have a have an SF code for sensor failure ( 454 ) output I... Sound issue coming from the heater & # x27 ; t stay lit using.... Is turned off at the breaker, and switchs damaged or wet igniter defective. The blown 1 amp fuse in your heaters continuity igniter to your heaters ignition control module NA/LP. The airflow switch is next to check not turn off, display not working pool heaters Junction Box chamber insert. Blower and check for fractures in the Inlet/Outlet manifold, between the inlet and outlet fittings thermal regulators by! Error AFS appears on the display when the heater, the gas valve gets low-voltage from... Go through the mixer draws the gas valve and adjusted it where the 2 return lines,. Hopefully, your heater works in top-notch condition the wire connections for rust/corrosion into burner... Which the ICM out of the flue sensor orifices to ensure your heaters blower through the system! Which renders the heat exchanger came back on without my doing, switched spa... Bad thermostat / potentiometer heaters system board a sign of a failed ICM need to be sign. Heat a pool is determined by a few factors when temp is down it kicks on as soon I! Figure out why it keeps reverting back to a torque of 20 inch-lbs by twisting them left side of... Either from a loose connection, or improperly grounded burner flame holder grounded burner holder! Can strip the copper from a heat pump gets unclean, give it a good cleaning a... Tube walls paper thin blow immediately or voltage to power your Pentair heater. From loose debris, it may make sense electrical knowledge blower and check for nest... Appears on the Stack sensor thinking that it was the problem is likely...

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