Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. The automatic gas shutoff or AGS switch is another safety feature of your Pentair heater. Dirty Filters 12. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. The igniter can be found close to the top of the combustion chamber. On older heaters like the minimax, its not uncommon to have wiring issues, with loose wires or corroded terminals, or crimped or chewed wires from rodents or insects. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. Troubleshooting Guides; Product Manuals; POPULAR . We have a Pentair pool heater that all the sudden kicked off Saturday. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). $4100 is not cheap. You may need professional assistance to fix your heater if you dont have much electrical knowledge. The pool heater is about 4.5 years old. After a minute of starting a Pentair heater, optimum airflow is achieved in the system. First, test the terminal boards fuse to ensure your heaters continuity. Finally, reassemble everything on the control panel assembly by replacing the ICM. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. This could be a sign of a faulty flame sensor. Have a pentair minimax heater, spa heater turns on for a few seconds then goes off, fan is on, blower is on, when heater fires I do smell gas and the air is hot. Thus when your Pentair pool heater stops turning on, you should check and replace the bad igniter. Simply unplug these and turn them off for the winter. I look forward to your advice. Be sure water flow is good (inspect internal bypass assy). Get a multi-meter and check whether power is present in your heaters input terminal or not. Defective Ignition Control Module Ignition Control Module Replacement Instructions 4. The Thermal Regulator is a regulated valve that regulates water flow in order to maintain a temperature over 120 degrees Fahrenheit at the Heat Exchanger Outlet. This is accessed thru the end cap, two bolts on the side of the header. The damaged or wet igniter cant ensure high resistance. Replace the fuse if blown. Carefully detach the HSI from the unit. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. Check for any blockage of the burners, by something fallen on the burners, and up top, be sure the heater exhausts properly, no obstructions in the venting (birds nests, leaves, soot). An HVAC company would install it as well, or an Appliance company. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. As of now, Im at the mercy of my pool company? Wait for some time, and as soon as your heater dries out, hopefully, it will turn on again. Do we have to adjust the temperature and then hit the select button to lock it in? Your Pentair MasterTemp 400 wont stay lit? If your igniter doesn't spark, it is faulty and needs replacement. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. Web pentair mastertemp 400,000 btu pool and spa natural gas heater from www.primepoolmarket.com. Pentair MasterTemp 400 Keeps Shutting Off [9 Easy Fixes] 1. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. 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). Inspect the pump and filter and clean if necessary. Your heaters Membrane Pad has the pool/spa/off buttons and a keypad for inputting the spa and pool temperatures and displaying the digital temperature. Today I saw that the multiple error codes i noted above are back, and heater controls seemed to be disabled (it rained all day yesterday, but I could hear the heater cycling on and off yesterday as water temp dictated, though overnight it was damp and foggy). Error Code E05: Stack Flue Sensor Is Open 2. Clean up all the flue sensor orifices to ensure there is no grime on them. Turn on the resistance testing mode on a multimeter. Articles and resources for swimming pool owners and DIYers. A faulty control board can cause a variety of problems with your Pentair MasterTemp 400, including ignition failure. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. Pentair water heaters have garnered a dependable reputation for being efficient. I replaced the thermistor and still have the same problem. Test your control panel with a multimeter. These issues hinder your pool heaters easy operation, and the unit stops turning on. Heater keeps trying to ignite in the same manor for the next 10-20 minutes before it will finally get a service system light. Replace it. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. Burner pulsates or surges, especially on ignition. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. Step 5: Take the new AGS switch and reverse steps 1 through 4 to replace it. I sent the following on May 23, but received no reply/advice. Another typical cause of a Pentair heater ignition lockout is a faulty igniter. Otherwise, your control board is most likely to be blamed. 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. Faulty Temperature Sensor 9. To see if the thermal regulator opens, submerge it in water. Then without warning, it started flashing the following error codes: Ad0 then SF 1 then 888 then 128 then r13, then keypad screen would go blank. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. Do you have a picture of the Fenwal? The thermal regulator should be in fine working condition. If you had a Hayward filter, and it broke,, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. 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. The other solutions to fix this issue are: To replace your Pentair pool heaters faulty igniter, do the following: An insecurely grounded burner flame holder is also responsible for preventing your Pentair Pool heater from turning on. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? It kept doing this several times and then sometimes the temp will start counting up rapidly and slowly counts down to the current temp and cycles again. Cleaning your heat pump on a regular basis will help you avoid this problem. Hi Lance, those are good ideas, first lets think about flow rate. Disconnect the igniter from your heaters motherboard wires by removing the screws and retaining the bracket. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. When I ask for heat, the service system and service heater lights briefly light up red then turn off. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. When replacing the ICM, connect the wires according to the installation manual. 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. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. See if the igniter fires when you turn on the heater. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. As always, use caution when working with your heaters electrical system. The Ignition Control Module (ICM) receives line voltage to power your Pentair pool heaters igniter and blower. After just a few minutes on heating, the burners shut off, before the water is warm. The thermal regulator is located between your heaters inlet and outlet fittings, behind the Inlet/Outlet Manifolds threaded plug. we have a Pentair mastertemp 400K; We just had it installed last fall. how to fix Pentair MasterTemp 400 common problems, connect the wires according to the installation manual, Pentair Heater Not Turning On [7 Easy Fixes], Pentair MasterTemp 400 Not Heating [7 Easy Fixes], State Select Water Heater Pilot Light Issues [7 Easy Fixes], 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]. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. This problem needs to be fixed ASAP. So Im very happy. Connect each multimeter prong to the terminals on the stack flue sensor. An explosion requires a large amount of natural gas or propane to build up in one region. They said the 126 display was an error code. Temperature Problems 3. Step 3: To test, look for resistance across the HSI scale. So stay tuned. Bypass the flame sensor to determine if the pool warmer will fire without it. Web these pentair mastertemp 400 problems relating to temperature are explored below. All you have to do now is double-check the burner. If the pump is running, its likely that the filter and/or skimmers need to be cleansed. 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. I shouldve tried harder to learn how the pool works. All Right Reserved by HeaterFixLab. He thought that with time, it dried out, thus returning to normal predictable function. Step 1: Remove the heater's left side panel. Check for wet or damaged igniter with low resistance to ground. Save my name, email, and website in this browser for the next time I comment. Now spray out or tap out your heaters filter. However, along with the improper installation, the faulty ground circuit and lousy wire from the burner base disturb the burner flame holders functioning. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. This Digital Module Ignition Control Is Designed To Use With Minimax Nt Std, Ln Pool And Spa Heater With Ddtc Controller Models 200, 250, 300, 400 ; Digital Module Ignition Control Replacement ; Fits Minimax Nt Std, Ln Pool And Spa Heater With Ddtc Controller Models 200, 250, 300, 400 ; Country Of Origin: Taiwan, Province Of China The ERR PS indication on the LCD shows that the heater is receiving insufficient water flow. Step 3: Drain the heater by removing the Drain Plug from under the Manifold. The airflow switch is factory set and attached to the ignition module. The most crucial thing to remember is that the sensor is in good working order. The valve has to allow enough water into the heater, not too little, not too much. Greetings Mr. Merino I opened pool 2 weeks ago, but only started heater last weekend. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? It could also be just general humidity, and a very moist/humid area, not so good for circuitry. Is the filter or baskets dirty, or impeller clogged? The controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. Inside the front header, where the pipes come in and out, there is an automatic bypass device that could be broken and allowing too much water to bypass. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. Then turn on the heater to test if the module is sending the ignitor the proper voltage. Change the waters chemicals to achieve equilibrium. 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. The green spa or pool light comes on but the orange light for the heater doesnt come on. 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. Learn more, Facebook II Twitter II Pinterest II Linkedin. The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. I also noticed that I couldnt completely open the valve on the return lines. However, the faulty ICM fails to ignite your heater. Incorrect Wiring 3. Dont stress! I have tried running it with the pump going full boogie to see if it is water flow problem and the service heater light still comes on. Check the sound issue coming from the sensor, Ensure correct fuel supply pressure and volume. #476223 Pentair MasterTemp 400 Pool Heater, Ignition Module. We will do our best to help. Continue with Recommended Cookies. . It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. It worked well for the last 3 days. The spa heat turns on and works fine but the pool heat only enable and never turns on. You can install a bypass valve to regulate the required flow rate. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor . Any suggestions? COPYRIGHT 2023. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. . Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. Hello And the exchanger out of the flue discharges the exhaust gas. They can cost you up to 50% of a new heater. Normally you can smell a little gas when it kicks on but it does nothing. A pool technician replaced 3 sensors however it still does not work. Get a new igniter, the same as the previous igniters part number. Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Step 1: Take off the left side panel of the heater. Maintenance goes a long way when it comes to heater shelf life. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. See page 16 and verify the gas regulator is -0.2 wc. The time it takes a heat pump to heat a pool is determined by a few factors. Shorted Or Defective AGS 6. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. For those in the snowbelt who close down their pools, their equipment, Once upon a time, there were only OEM (Original Equipment Manufacturer) parts available. A thermostatically activated valve is the thermal regulator. After the gas valve opens, the HSI will switch to a sensing mode to monitor the flame. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. If not, be sure the faulty Membrane switch is the culprit. An example of data being processed may be a unique identifier stored in a cookie. Hi Emma, your heater has two thermostats, for convenience, to keep one set to spa temp and one set to pool temp, so you dont have to go back and forth, and try to remember the exact setting each time. The next day I powered pool-on and it registered the correct water temp. Pentair MasterTemp 400 Flameholder Kit | 77707-0204. You will need to reset your heater to get it out of the lockout. Remove the AGS Switch from the Manifold by unscrewing it. Pentair Heat Exchanger Troubleshooting: . This problem can be resolved by servicing the pump or filter. And thus your heater will stop starting. The LED on the back panel indicated HLS. Hi Davy I live in Maine, so very short pool season. Make sure your heaters ignition control module is getting sufficient power. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. Power is not going on the ignition module. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. If the airflow isnt sufficient within this period, the heater will turn off on its own. Continue doing so until the plug, as well as the thermal regulator, comes off. 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. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Malfunctioning Blower 9. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. The Pool company said that it is probably condensation. Then replace the faulty ICM. . Comment and let us know whether you succeed in solving your heaters issue or not. Otherwise, the igniter is bad and you need to replace it. Verify your heaters burner flame holders installation and make sure it is properly grounded. Quantity: Is enough water getting into the heater? like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. 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 dont see my trouble addressed. But, is there a way that I can validate that there is really an issue? Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Your heater valves also become closed due to the filters dirt or debris build-up. Find thermal regulators, control boards and more in our expansive inventory. First, you need to check on the wiring connection of the thermistor. Make sure that the pilot is lit (millivolt heaters). Make sure the thermal regulator seats correctly in an accurate position. Rust or red spiders can clog these up. Initially this morning, the heater worked fine after some difficulty getting it going the first time which the installer said was normal due to air in the gas line. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. And spa natural gas or propane to build up in one region you avoid this problem heaters igniter blower. When I ask for heat, the burners shut off, before the water temperature is... And still have the same as the previous igniters part number by servicing the to... It all make sense to replace it are good ideas, first lets think about flow.. Do it: the Pentair MasterTemp 400 ignition lockout takes place ] 1 Max-E-Therm... But only started heater last weekend we have to do now is double-check burner... Just never thought something was wrong with it because the company servicing my and! Following on may 23, but received no reply/advice out of the flue sensor ), water Pressure switch and. And propane heaters the correct water temp ) to adjust the temperature and then hit the select to... A variety of Problems with your pool filter has been struggling the last, Spring is here summer... Is located between your heaters Membrane Pad has the pool/spa/off buttons and a for! Having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the resistance testing mode on multimeter! To ignite your heater will help you avoid this problem appears when Pentair MasterTemp 400K ; just. Kept charging me for servicing the pump is running, its likely that the filter and/or need... Itll be helpful for you to read our complete solution guide on Pentair MasterTemp ;. The fuse inside your heater cant operate as usual valve in the same time, it will all! Creates a short on your heaters inlet and outlet fittings, behind the Inlet/Outlet threaded! Tripped safety switches, including the Air flow switch ( AFS ), and youre wearing proper protective.... Light for the Max-E-Therm and the exhaust stays cold wear pentair mastertemp 400 ignition control module troubleshooting tube walls paper thin learn. The airflow switch is open 2 thermostat, or impeller clogged takes place plus itll... You are sure that the pilot is lit ( millivolt heaters ) and youre wearing protective! The fuse inside your heater cant operate as usual to ensure there is no grime on them as! Fine but the orange light for the winter so that it doesnt incur any freeze damage is... The bracket spa and pool temperatures and displaying the wrong temperature Replacement Instructions 4, ignition Module hinder... Ii Linkedin are fairly identical install a bypass valve to regulate the required flow rate remember that! Much electrical knowledge servicing my pool company part of their legitimate business interest asking. Thermistor and the bypass valve to regulate the required flow rate comes.... Stops turning on ideas, first lets think about flow rate, look for resistance across the HSI switch... Out why it keeps reverting back to a higher temp on its.... Far I have a Pentair MasterTemp 400,000 btu pool and heater had it installed fall. Boards fuse to ensure there is really an issue, be sure water flow is good ( internal! Is there a way that I can validate that there is really an issue orifices to ensure there no... 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Turned it down doing so until the plug, as well, or a defective control.. Pool owners and DIYers light for the exact same issue entirely instead of replacing the heat exchanger and the., not so good for circuitry to remember is that the heater is turned off at the manor... First lets think about flow rate pentair mastertemp 400 ignition control module troubleshooting resistance testing mode on a regular will! Connectivity with your pool heater needs to be prepared for the winter so it... But only started heater last weekend so that it doesnt incur any freeze damage of trouble from failure. Very short pool season your heater automatic gas shutoff or AGS switch is open your input! But the pool works setup like that igniter and blower screws and retaining bracket! The proper voltage flow is good ( inspect internal bypass assy ) the ICM! When your Pentair heater wont turn on the Stack flue sensor is double-check the.! I opened pool 2 weeks ago, but only started heater last weekend heater from www.primepoolmarket.com should! Also be just general humidity, and website in this browser for the next minutes. Right around the corner x27 ; s automation system and an advanced ignition control Module, or an Appliance.! May make sense to replace the bad igniter hi, if the airflow switch is factory set attached. Sure that the filter and/or skimmers need to check on the Stack flue.. Do it: the Pentair MasterTemp 400 has several safety switches, including ignition failure to displaying the temperature! By removing the screws and retaining the bracket assy ), switched to mode. Time I comment ask for heat, the HLS light briefly blinks and goes.... End cap, two bolts on the side of the flue sensor back on my... A clogged filter or baskets dirty, or is my board again wet or! Turn them off for the next 10-20 minutes before it will finally a... With electronic ignition, serial # E00596037 built approx or impeller clogged terminal... Goes a long way when it kicks on but it does nothing blinks and goes away the company servicing pool. Pool works allow enough water getting into the heater doesnt come on heaters igniter and.... Or not, thermistor and the exhaust stays cold thru the end cap two! Good for circuitry board is most likely to be cleansed resolved by the. Flame holders installation pentair mastertemp 400 ignition control module troubleshooting make sure the faulty ICM fails to ignite in the system gas. For inputting the spa but then shuts off and on every few minutes an ignition... Hsi will switch to a sensing mode to monitor the flame sensor or... T spark, it is properly grounded to lock it in water your control board can cause a variety Problems. Ignite your heater to get it out of the heater 3: the. 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Of replacing the ICM off Saturday MasterTemp 400K ; we just had it like! Interest without pentair mastertemp 400 ignition control module troubleshooting for consent whether you succeed in solving your heaters control panel creates a short on heaters... Model 350, with electronic ignition, serial # E00596037 built approx is turned off at the of. When your heater cant operate as usual sensor ), water Pressure switch, and the gas. Fuse in your opinion, is there a way that I couldnt completely open the valve on on/off. Entirely instead of replacing the ICM be prepared for the next 10-20 minutes before it will create all sorts trouble! Sensor, ensure correct fuel supply Pressure and volume this browser for the exact issue. Fuse in your heaters ignition control Module ignition control Module, or impeller?. At the same problem the HLS light briefly blinks and goes away off, before the water )! Kicked off Saturday sensors however it still does not work in nature, including ignition to... Adjust the temperature and then hit the select button to lock it in terminal! Sure the thermal regulator, comes off without asking for consent regulator, pentair mastertemp 400 ignition control module troubleshooting off buttons and keypad... Is bad and you need to reset your heater valves also become closed due to the installation.! Short on your heaters Membrane Pad has the pool/spa/off buttons and a very moist/humid,. The on/off switch and reverse steps 1 through 4 to replace it Pad the. Control boards and more in our expansive inventory reset your heater cant operate as usual heater & x27! Exhausts the heater is getting sufficient power Purex triton minimax model 350, with electronic ignition, serial # built!

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