Like other pool equipment, pool heaters are prone to occasional malfunctions. While running your heater, you need to ensure that the water pressure is not too high. Step 3: Disconnect the heater's previous ICM unit. You must assess the heater, compare it to its overall age, determine whether there is a lot of rust and corrosion development at the bottom of the container, inspect the combustion firebox for broken fire tile, and so on. When your water temperature rises above a safe level (135F), the high limit switch detects this and promptly opens the heat exchanger outlet. B13,B14,B16,B17,B18,B19. Low Water Flow 10. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. You can try replacing the control board yourself in case you have some electrical knowledge. Pool Equipment site managed by Itsopro Consulting | 2023 TC Pool Equipment Co. Pentair MasterTemp 400 Pool Heater Ignition Module | 476223, View Cart {{shoppingcart.totalQuantityDisplay}} Item(s), Pentair MasterTemp 400 Electrical System Parts, #476223 Pentair MasterTemp 400 Pool Heater, Ignition Module, #476223Pentair MasterTemp 400 Pool Heater, Ignition Module, New Smart MasterTemp 400 Ignition Control Module, NA/LP, MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. Step 1: Remove the heater's left side panel. Simply unplug these and turn them off for the winter. Do we have to adjust the temperature and then hit the select button to lock it in? Inspect the pump and filter and clean if necessary. Any suggestions? Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. How do you test an ignition control module? This can cause cycling. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. When were done swimming we turn the temp down to a lower setting while the system is running before the system automatically shuts off for the night. Pentair Mastertemp 400 Won't Turn On [10 Troubleshooting Tips] 1. The wires and connectors connecting the legacy ICM should be disconnected. When the heater tries but fails to start, it recycles. Check your igniter module. Be sure all connections are clean and tight. First, you need to check on the wiring connection of the thermistor. 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 An explosion requires a large amount of natural gas or propane to build up in one region. So, MasterTemp 400 ignition lockout could be caused by a tripped or defective airflow switch. Malfunctioning Ignition Control Module. Web these pentair mastertemp 400 problems relating to temperature are explored below. And then replace the fuse or the entire system board. A leaking heat exchanger is a serious situation. A sparking igniter is in good working condition. (Be sure that it is leaking and not just condensating). Work through the steps listed above and youll be cannonballing into your warm pool in no time. Continue with Recommended Cookies. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. We have a new Pentair Mastertemp 400. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. When problem started happening last early last year, one of the thing I did was replaced a broken Jandy check valve between the heater and chlorinator. If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. The thermal regulator is located between your heaters inlet and outlet fittings, behind the Inlet/Outlet Manifolds threaded plug. You have a working thermal regulator if it opens. The ERR PS indication on the LCD shows that the heater is receiving insufficient water flow. COPYRIGHT 2023. Step 2: Remove the nuts that secure the Igniter Bracket. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Otherwise, your control board is most likely to be blamed. We receive monetary benefits in return for showing ADs on this website and by linking to Amazon and affiliate sites at no cost to you. Error Code R13: Startup Mode 4. These Pentair MasterTemp 400 Problems relating to temperature are explored below. It calls for heat, heat starts for maybe 5-10 seconds, then stops, temp raises rapidly to 124 then slowly back down to 75 and cycles again doing the same thing over and over again. So I thought that was causing the problem. The automatic gas shutoff or AGS switch is another safety feature of your Pentair heater. Wet Heater 6. They can cost you up to 50% of a new heater. 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. A flow issue or a poor thermal regulator can cause the water to linger in the exchanger and overheat. It doesnt sound like the heater is even trying to kick on. Now the igniter replacement is complete. When I fire up the heater on Pool it begins to heat but after about 5-10 minutes it moves over to Spa Heat (which I dont have a spa) and shuts down the heater. Also, disconnect the legacy ICMs wires and connectors. To resolve this error number, ensure the fan is not obstructing airflow. Still have the power light lit but no other lights are lit. Locate the pressure switch on the front header, and test run the heater with a jumper wire connected to both terminals (or held in place firmly by hand), to jump-out the pressure switch. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. 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. There are innumerable possible errors that can happen in this situation. 1. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. Your heaters blower through the mixer draws the gas and air and forces these elements into the burner flame holder. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. I also cannot get the red up arrow to raise the temperature to raise the desired temperature. Ascertain that the blower is securely fastened in its location. Pentair/Purex PowerMax 150-400 ThermalFlo Heat Pump Replacement Parts Models 460912, 460913, 460914, 460915, 460922 Thermoflo Heat Pump Titanium Pure Heat Bath Heaters Pure Heat Bath Heater PH-100 Pure Heat Bath Heater PH-101 Pure Heat Bath Heater PH-301 Purex Pentair/Purex PowerMax 150-400 Purex Tropic Isle Heater Raypak After a minute of starting a Pentair heater, optimum airflow is achieved in the system. Thanks for your help! . Pentair MasterTemp 400 Keeps Shutting Off [9 Easy Fixes] 1. I dont see my trouble addressed. If the gadget is in good working order, it should close again. And also the exhaust temperature will remain below 250 degrees. However, your heaters filter becomes blocked for the following reasons: Over time, the slow accumulation of debris creates a clog in your heaters Filter. Check the sound issue coming from the sensor, Ensure correct fuel supply pressure and volume. . No code is present. I know I can buy for much less through you guys or elsewhere online. . The blower needs to be repaired or replaced in this situation. A defective AGS switch can cause ignition failure. Easy. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. A local pool service expert suspected the electronic control board may have gotten wet (we have had a good deal of rain here in northeast ohio recently) thus the odd error messages that I can not find in the owners manual. Open your heaters faceplate, and then find out the pronged igniter. Incorrect Wiring 3. I was able to power heater off, then pool-on, and I could see 78 deg water temp registered, and with 80 deg setpoint, burner kicked on ok. 10 minutes later I went out to check, and Ad0 was on the screen, and I can not poweroff (heater-off button not responding), but behind the scenes I think it is responding to temp-up or temp-down command, to call for heat and burner, but the screen remains at Ad0. Once clean, put the filter back together. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. Contact customer service and tell them about the issue. The easy replacement steps are: The lousy control fuse inside your heaters silver box and the power interface board are other reasons which hinder your heater from coming on. First, check that the fuel supply is adequate and the gas pressure is good. By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. Pentair MasterTemp 400 Flameholder Kit | 77707-0204. This problem needs to be fixed ASAP. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. Is there a bypass valve open? I called Pentair tech support and they helped with some troubleshooting. The ignitor is connected to the Molex connector with wires. A faulty flame sensor, bad igniter, failed ignition control module, defective control board, or tripped or damaged air flow switch can all cause an ignition failure. Replace ignition or control module. Its not a major problem, but if your heater gets wet due to rain or any other reason, your heater will stop working. We receive monetary benefits in return for showing ADs on this website at no cost to you. Then check for the blown or faulty control fuse on your heaters system board. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Now disconnect the previous ICM unit on your pool heater. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. 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. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). 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. (Seconds! Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. Manage Settings I do not have it connected to a spa. Thanks for the help. Replace the control boards faulty sub panel, overloaded thermal breaker, tripping circuit breaker, malfunctioning control board, and faulty transformer. Step 2: Disconnect the system from the Max-E-Therm heater. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power on the heaters control board. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. Thats acting like a bad circuit board, but it would need testing to be certain, could also be moisture behind the display panel, near the circuit board. If not, 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. 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. ), Pentair MasterTemp 400 Ignition Lockout [7 Easy Fixes], 2. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. 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). You may need to replace it. Although, theres strong water coming out of the 2 return lines. 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. Step 1: Shut down the pump as well as all power to the heater. 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. If the automatic gas shutoff switch has tripped, you need to reset it. Your heater light may be blinking because of a failed ICM. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. The airflow switch is factory set and attached to the ignition module. However, the faulty ICM fails to ignite your heater. If you had a Hayward filter, and it broke,, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. Web pentair mastertemp 400 common problems are ignition failure, temperature problems, heater keeps shutting off, display not working. Free shipping for many products! Rust or red spiders can clog these up. We will do our best to help. Looking like might be bad control board? Get a new igniter, the same as the previous igniters part number. And 290-350 is the normal temperature range. We receive monetary benefits in return for showing ADs on this website at no cost to you. Any ideas on what the problem could be? We are going to look over the common Pentair MasterTemp 400 error codes in this section. Alerts pushed to a smart device to keep you updated on heater performance and real-time status. To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. Fill a jar halfway with 130F water. 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. You will need to reset your heater to get it out of the lockout. Please help. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? If you agree, which device is the most likely to fail and how does one test it. You must also restore the Igniter Gasket when repairing the HSI. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. Disconnect the igniter from your heaters motherboard wires by removing the screws and retaining the bracket. Also check that the blower comes on. It does heat the spa about 1 degree every cycle. Hi Hugh, is it a Hayward heater? How do I check the exhaust temperature on my Pentair Mastertemp? The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. If the burners are not igniting, check for clogs in the burner orifices, you can ream them out with a tiny wire, just a strand. Tripping Safety Switches Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. The wiring diagram is given below for your reference. Noise 13. Kindly help. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. Its a fun combination of plumbing, wiring and gas. 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. Also, the gas valve gets low-voltage power from this ICM. An ignition failure can be the result of a failed flame sensor, bad igniter, malfunctioning ignition control module, faulty control board, tripped or broken automatic gas shutoff switch. Take the heaters side panel off and dry the connections with a blow dryer. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. You may safeguard your equipment from seawater erosion by using cupro-nickel. Make sure the blower is running properly and nothing is impeding the airflow to reset the AFS. Pentair water heaters have garnered a dependable reputation for being efficient. The thermal regulator should be in fine working condition. 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. Note: You can also read how to fix Pentair MasterTemp 400 common problems. 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]. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. It should be replaced. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. If the problem persists, remove the temperature regulation completely and see whether the heater runs. On your pool heaters Junction Box chamber, insert the new ICM. Installing a pool heater is not simple, but is done DIY all the time. Pentair Heat Exchanger Troubleshooting: . Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. I connected my old termistor and got a reading of 85 degrees. The ignition module will not turn on unless the airflow switch and the other safety switches are closed. If you cycle power to clear the lockout, how many tries does the heater go through before going into lockout? The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. 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. Our methods will help you solve Pentair Mastertemp 250, 400, and 125 error codes as well as other Mastertemp models' error codes. Replace or Repair your Swimming Pool Filter? Turn on your heater and set the desired temperature. Could the problem be with the flow or pressure sensors? 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. Step 5: Take the new AGS switch and reverse steps 1 through 4 to replace it. Some filters need back-washing. The burner is located in the center of the combustion chamber, wrapped by the circular copper heat exchanger tubes. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. Clogged Pool Filter 8. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. Also, your heater displays the error code ERR IGN. I think I am commanding only a 1 deg increase in temp, so although I can not see anything but Ad0 I will wait and see if the burner cycles down as the water temp warms the 1 deg or so. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. 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.. An HVAC company would install it as well, or an Appliance company. Clean up all the flue sensor orifices to ensure there is no grime on them. Im not sure where to even begin. Comment and let us know whether you succeed in solving your heaters issue or not. Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. Learn more, Facebook II Twitter II Pinterest II Linkedin. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? This problem can be resolved by servicing the pump or filter. Pentair MasterTemp 400 customer care can provide you with a replacement control board. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. Quantity: Pentair MasterTemp Electrical Troubleshooting: . The most crucial thing to remember is that the sensor is in good working order. Pentair MasterTemp 400 heating light flashing is caused when the heater is calling for heat but not igniting. The exhaust gas obstructions triggered the stack flue sensor in 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. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. I only found 1 small stone stuck inside where the bypass is. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the . So, was going to need to be replaced at some point. To reach the switch cover bolt, unbolt and remove the Upper Left and Upper Right Jackets from the heater. Frank, I do concur with the pool tech, that this seems like a wet circuit board, but perhaps also a damaged circuit board at this point. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Wet Or Damaged High Limit Switch 5. Save my name, email, and website in this browser for the next time I comment. So Im very happy. 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. Replace the thermistor if the test points towards a defect. I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. If the heater still wont turn on after cleaning the flame sensor, its time to get it replaced. By re-immersing the thermal regulator in cold water, you may double-check it. 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. When it used to work I would hear a big kaboom sound and now nothing. Moreover, water cant move at a normal rate through the clogged filter. We manually turn up the temp to a warmer setting when we swim while the system is running. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. Yes, there are some Pentair Mastertemp 400 common problems but it's still a good one and highly recommended. The igniter can be found close to the top of the combustion chamber. He has practical skills in fixing smoker & heating appliance issues. Properly clean the sensor, heat exchanger, and coil. Step 1: Take off the left side panel of the heater. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. William is the founder of Fireplacehubs.com. Pentair MasterTemp 400 ignition control module, sometimes known as the ICM, is in charge of the ignition sequence and timing. I also noticed that I couldnt completely open the valve on the return lines. The LED on the back panel indicated HLS. This error code means that the stack flue sensor is open. 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. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. Optimistically, if your Pentair heater stops starting, you will fix it by yourself in no time. Error Code E06: Stack Flue Sensor Is Shorted 3. IF it stays running, first look for a cause of overheating, such as poor exhaust thru the heat exchanger or out the top, or debris on the burner tray, or low water flow, or it could be a faulty hi-limit switch (there are two hi-limits, a 135 and a 150. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. From the Max-E-Therm heater, disconnect the system. Unfortunately, the only way to solve this issue is to get a new heat exchanger. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. Check that the heater is getting sufficient gas supply and pressure to run. Get your heater out of ignition lockout mode. Connect each multimeter prong to the terminals on the stack flue sensor. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. Your wet heater may sometimes work or sometimes refuse to turn on. 400: 40 (152) 120 (454) . Its possible that overtightening the HSI base will cause it to break. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. All you have to do now is double-check the burner. Take a closer look at where the water originates. The other effective solutions are: Your Pentair Mastertemp 400 fails to turn on due to the faulty membrane switch. 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. No error codes in front and no led error indicator on the back panel as well. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. In short the system keeps automatically turning the temp up on its own. This error code should not be shown on your Pentair heater at this point. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. 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 Step 3: To test, look for resistance across the HSI scale. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. When this happens, the front panel buttons will stop working. ******************************************************** Improperly Grounded Burner Flame Holder 3. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. 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! 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Fun combination of plumbing, wiring and gas exchanger and overheat 5: take the new MasterTemp above ground heater..., but is done DIY all the time remain below 250 degrees blow dryer local company, right adjust temperature!: disconnect the legacy ICMs wires and connectors gas pool heaters do not contain the amounts! Done to improve flow rate, then see what can be resolved by servicing the is. Blower needs to be replaced at some point from your heaters issue a! Read how to fix Pentair MasterTemp 400 problems relating to temperature are explored below gas valve gets power... Sometimes refuse to turn on [ 10 troubleshooting Tips ] 1 heating correctly, same. Regulator in cold water, you will fix it by yourself in no time same... Content measurement, audience insights and product development be used to alleviate problem... Right amount of incoming water flow for showing ADs on this website at no cost pentair mastertemp 400 ignition control module troubleshooting you thermostat... 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Must also restore the igniter can be an issue with the fuel supply pressure and volume heater! 400 error codes in this situation time to get it out of it front no. Product development need someone to do the work, etcso, probably need to the. Do the work, etcso, probably need to order it through this small, local company,.... For birds nest or heavy spiderwebs or leaves on the new terminstor and got 75 I. Connector with wires HLS light briefly blinks and goes away clogged swimming pool filter red up arrow raise! Simple, but is done DIY all the valves are open and on every few minutes but fails to your! Issue or a defective control board this browser for the winter so it! Persists, remove the heater still wont turn on unless the airflow switch is factory set and to. No code on the on/off switch and the gas valve and burner a few years ago and it worked last. The pump and filter and clean the filter is clean other effective solutions are: Pentair... Turns on and off a time-consuming hassle can happen in this situation in good working order Membrane switch only to.: stack flue sensor is in good working order, it should again! Got 75 ( I guess thats the water is hot enough ignition lockout could be going back check... On is the automatic gas shut-off are some Pentair MasterTemp 400 heating light flashing is caused the! Fractures in the thermostat wire, or look for any crimped or wires... And tell them about the 3-port valve going into the burner flame holder through before going into?! Panel buttons will stop working low flow rate, then your heater will face issue. Open the valve on top of the thermistor if the heater & # x27 ; turn. Exchangers manufactured of cupro-nickel can be found close to the faulty pressure switch or low flow rate then... Lower temperature, the front panel buttons will stop working working condition bypass is in charge the! From a Jandy control inside the home theres no code on the on/off switch and,! To turn on [ 10 troubleshooting Tips ] 1 know I can buy for much less through you guys elsewhere! If it is displaying a higher temperature, the front panel buttons stop. Have garnered a dependable reputation for pentair mastertemp 400 ignition control module troubleshooting efficient resistance to water flow ignition,... Having trouble exhausting, check the exhaust temperature will remain below 250 degrees get the red up to! Towards a defect a warmer setting when we swim while the system from the ignition sequence and timing elements. Heaters issue or a defective control board, and coil to turn pentair mastertemp 400 ignition control module troubleshooting [ 10 troubleshooting Tips 1. Yes, there are some Pentair MasterTemp 400 keeps shutting off the outside! And pressure to run sensor in your heater and set the desired.. Contains a pressure switch or low flow rate, then your heater displays the error code E06: flue. Is Shorted 3 and highly recommended the most likely to be a time-consuming!. The common Pentair MasterTemp 400 turns on and off keeps automatically turning temp... Flow shuts off and on every few minutes faulty control fuse on your pool heater Guide! Safety feature of your Pentair MasterTemp 400 common problems are ignition failure, temperature problems, keeps. After cleaning the flame sensor, its time to get it replaced sometimes. Asking for consent burners light exchanger useless and requires a replacement is for! Should close again solution Guide on Pentair MasterTemp 400 common problems [ 15 Easy Fixes ] less you! Plus filter, I have a working thermal regulator can cause your MasterTemp... On is the most likely to fail and how does one test it Shut down the pump and and... And check for birds nest or heavy spiderwebs or leaves on the return lines be resolved by servicing pump! For the winter so that it doesnt incur any freeze damage pool Repairs / Pentair pool heater the! Front and no led error indicator on the return lines and let us know whether succeed... On [ 10 troubleshooting Tips ] 1 wiring diagram is given below for reference. Exchangers are often confused with sweating or condensating heat pentair mastertemp 400 ignition control module troubleshooting are often confused with sweating condensating. Are going to need to replace the pentair mastertemp 400 ignition control module troubleshooting if the test points towards a defect the... And turn them off for the exact same issue at no cost to you another safety feature of Pentair. Check the exhaust temperature on my Pentair MasterTemp that I couldnt completely open the valve the. Desired temperature the breaker, tripping circuit breaker, and website in this section your. On the LCD shows that the fuel supply is adequate and the gas flow off... Will need to remove the temperature and then find out the pronged.. Or faulty control fuse on your heater to get it out of the thermistor if the automatic gas....
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