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! Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. You may need to replace it. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. The same is true for the StaRite Maxetherm heaters. Installing a pool heater is not simple, but is done DIY all the time. Step 1: Take off the left side panel of the heater. Its possible that overtightening the HSI base will cause it to break. Hi Lance, those are good ideas, first lets think about flow rate. And thus your heater will stop starting. 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. When Pentair MasterTemp 400 ignition lockout occurs, your heater will display the error code ERR IGN. You need to take apart the filter cover and get the elements out. By re-immersing the thermal regulator in cold water, you may double-check it. Then i see a R9 code. If needed. Thus your Pentair Mastertemp 400 fails to turn on due to the igniter with a low resistance to the ground. Then turn on the heater to test if the module is sending the ignitor the proper voltage. When your water temperature rises above a safe level (135F), the high limit switch detects this and promptly opens the heat exchanger outlet. 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.. Also, your heater displays the error code ERR IGN. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf. If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. Step 3: Drain the heater by removing the Drain Plug from under the Manifold. All Right Reserved by HeaterFixLab. Make sure the thermal regulator seats correctly in an accurate position. The other effective solutions are: Your Pentair Mastertemp 400 fails to turn on due to the faulty membrane switch. The time it takes a heat pump to heat a pool is determined by a few factors. You need to identify and solve the underlying cause of this issue before resetting the heater. Pentair MasterTemp Max-E-Therm Ignition Control Module | 42001-0052S | 476223. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. How do I check the exhaust temperature on my Pentair Mastertemp? And thus your Pentair Mastertemp 400 stops turning on. Sensor Issue 7. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. You need to follow the instructions given below to replace the AGS switch. So stay tuned. If the heater still wont turn on after cleaning the flame sensor, its time to get it replaced. As your unit is a new one, to fix your pool heater issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer. After just a few minutes on heating, the burners shut off, before the water is warm. If it isnt, theres a problem with the module. . Check to see if anything is stuck on the stove. Improperly Grounded Burner Flame Holder, Ignition Control Module Replacement Instructions, Pentair Mastertemp Pool Heater Filter Cleaning Instructions. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. SFS is stack flue sensor. The level of resistance will alter if there are cracks in the HSI that affect performance, but they may be too slight to perceive. Finally, reassemble everything on the control panel assembly by replacing the ICM. Your heater stops working or blowing when a lower volt or no volt comes to the control panel out of the transformer. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. So Im very happy. 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 you have a successful ignition, the problem is most likely the flame sensor. Its a fun combination of plumbing, wiring and gas. And 290-350 is the normal temperature range. Without a working control panel, your heater is no good. If the pump is running, its likely that the filter and/or skimmers need to be cleansed. COPYRIGHT 2023. We receive monetary benefits in return for showing ADs on this website at no cost to you. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. I only found 1 small stone stuck inside where the bypass is. Wet Or Damaged High Limit Switch 5. Heat exchangers, when they fail and leak, they develop pinholes in the copper tube, or may also leak at the point where the tubes are welded to the end plate. To fix your issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer to inspect your unit & fix the issue. It is old and a bit rusty and loud. If no ignition, I turn off, wait, then re ask for heater. I also noticed that I couldnt completely open the valve on the return lines. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. Then check for the blown or faulty control fuse on your heaters system board. Defective Membrane Switch 8. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. Replace the fuse if blown. You can clean your own pool filter easily. To hear if the small relay on the board clicks while giving voltage to the blower, put your ear right next to the top of the heater. The breaker is tripped as a result of this. Ensure that the control board is dry. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. To fix your heaters control panels hitch, do the following: Note: Checking the voltage is quite risky and has accident potential. No other control board or ICM lights come on. Still have the power light lit but no other lights are lit. I replaced the thermistor and still have the same problem. You must also restore the Igniter Gasket when repairing the HSI. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. Please help. 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. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. Pentair Heat Exchanger Troubleshooting: . If not, replace it. When I ask for heat, the service system and service heater lights briefly light up red then turn off. The consent submitted will only be used for data processing originating from this website. Now reassemble the filter, put its cover, and turn on your heater. This can cause cycling. The control board is in charge of almost all of the activities of your pool heater. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. Take a closer look at where the water originates. If the airflow isnt sufficient within this period, the heater will turn off on its own. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Copyright 2022 In The Swim. Looking like might be bad control board? Pentair 77707-0001 Manifold Bypass Valve . You have a working thermal regulator if it opens. Main engine troubleshooting - Why does the engine not start? 1. Your wet heater may sometimes work or sometimes refuse to turn on. It means that the ignition control module has failed to ignite the heater. Hello, I have a Mastertemp 200. The controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. First, you need to check on the wiring connection of the thermistor. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. The water inside the equipment can freeze and expand, causing cracks in your heater. when temp is down it kicks on as soon as it goes over setpoint it shuts off. What else can impact the temp reading? Now, we make a living selling to DIY people, who like to save money. However, the faulty ICM fails to ignite your heater. Gentlemen, 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. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. Take off your Pentair pool heaters left side panel. And the exchanger out of the flue discharges the exhaust gas. Incorrect Wiring 3. How to Reset Honeywell Thermostat? www.pentairpool.com. Change the faulty igniter and the bad ignition module. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. Is there a process that we need to do to lock the temp at the lower setting before the system shuts off for the night I.e., when we lower the temp do we need to touch the select button? 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. Tripping Safety Switches The ignition module then powers the blower for pre-purge (timed) and after pre-purge powers the ignitor for a timed warmup period. So, was going to need to be replaced at some point. Is the filter or baskets dirty, or impeller clogged? It sits in a pool shed, with decent, not great ventilation. However, the easy filter-cleaning steps are: Your Pentair pool heater keeps shutting off due to inadequate water flow, a closed valve, a dirty filter, a control board malfunction, low gas pressure, a faulty igniter, and a faulty ignition control module. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. He thought that with time, it dried out, thus returning to normal predictable function. Plastics, paper products, oils, or mulch accumulated in the Filter, Gain access to your pool heaters filter by removing the filter cover. 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. If your igniter doesn't spark, it is faulty and needs replacement. My heater also powers up, displays lights, without anyone touching it. The valve has to allow enough water into the heater, not too little, not too much. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. Display Not Working 5. This problem has a very basic and straightforward fix. The green spa or pool light comes on but the orange light for the heater doesnt come on. Of course, there is also an internal bypass in most gas pool heaters. In short the system keeps automatically turning the temp up on its own. The most crucial thing to remember is that the sensor is in good working order. Also could possibly have circuit board problems. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. You can try replacing the control board yourself in case you have some electrical knowledge. The pool heater is about 4.5 years old. Remove the Max-E-Therm Heater from the equation. Defective Control Panel 11. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. 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. Also, the gas valve gets low-voltage power from this ICM. The error codes will help you understand what your Pentair heater is trying to tell you. Pentair MasterTemp 400 ignition control module, sometimes known as the ICM, is in charge of the ignition sequence and timing. 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 the automatic gas shutoff switch has tripped, you need to reset it. UPDATE. As always, use caution when working with your heaters electrical system. Web product owners manuals are available for nearly every product to help you and your pool professional install and service your pool and spa equipment and . He has practical skills in fixing smoker & heating appliance issues. This is accessed thru the end cap, two bolts on the side of the header. The Service Heater light comes on when the heat shuts . Each switch performs different safety functions such as: All these switches are your heaters safety devices. Save my name, email, and website in this browser for the next time I comment. I think its a bit on the high side. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. When this happens, the front panel buttons will stop working. The pool system must sustain the water flow in order for heaters to perform efficiently. The 2nd is after modified the 3-port valve to the return lines. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the . When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. 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. The thermal regulator should be in fine working condition. Web pentair mastertemp 400 common problems are ignition failure, temperature problems, heater keeps shutting off, display not working. Thank you! They can cost you up to 50% of a new heater. Low water flow is the cause of up to 70% of all My heater wont heat service calls. I run the heater and this time it did something different. Normally you can smell a little gas when it kicks on but it does nothing. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? Manage Settings This kind of damage can be very costly. If you cycle power to clear the lockout, how many tries does the heater go through before going into lockout? The Ignition Control Module (ICM) receives line voltage to power your Pentair pool heaters igniter and blower. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. So in this case, you need to prevent the damage. Unfortunately, the only way to solve this issue is to get a new heat exchanger. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. It does heat the spa about 1 degree every cycle. In case the issue persists, replace the control board. Tighten the igniter hold-down nuts to a torque of 20 inch-lbs by twisting them. Ensure that the pool filter is clean and clog-free. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. Step 1: Shut down the pump as well as all power to the heater. 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. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. 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. Get a multi-meter and check whether power is present in your heaters input terminal or not. I have a MasterTemp 200. So, MasterTemp 400 ignition lockout could be caused by a tripped or defective airflow switch. Hi Barbara, I call that cycling on and off, and that can be related to low water flow, and jumping out the pressure switch can tell you if flow is the problem, in the absence of flow error codes. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. First, check that the fuel supply is adequate and the gas pressure is good. We and our partners use cookies to Store and/or access information on a device. Your heater valves also become closed due to the filters dirt or debris build-up. Step 5: Finally, remove the control panel assembly and replace everything. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. When your Pentair Mastertemp 400 keeps shutting off, it could be caused by a faulty temperature sensor, a low water flow rate causing the heater to overheat, or a bad control board. Free shipping for many products! I also cannot get the red up arrow to raise the temperature to raise the desired temperature. Heater is Pentair Mastertemp 200, installed May2017. No volt or lower volt (less than 24 VAC) coming to your control panel from the transformer means your heater will not turn on. It will be tough for the heater to function correctly with lower water levels. The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. 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. Otherwise, the igniter is bad and you need to replace it. A pool technician replaced 3 sensors however it still does not work. Your heater's ignition control module is the most likely culprit that will need to be replaced. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. We manually turn up the temp to a warmer setting when we swim while the system is running. The thermal regulator should be in fine working condition. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. Pentair MasterTemp 400 wrong temperature being on display is a common problem. No code is present. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. 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 Pentair MasterTemp 400 Flameholder Kit | 77707-0204. This problem can be resolved by servicing the pump or filter. In about 20 seconds, the gas valve opens and ignition should occur. Although, theres strong water coming out of the 2 return lines. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor . Troubleshooting Guides; Product Manuals; POPULAR . Alerts pushed to a smart device to keep you updated on heater performance and real-time status. Low Gas Pressure 4. Clean up all the flue sensor orifices to ensure there is no grime on them. 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. Reduce strength of exhaust vent and/or number of elbows. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. A flow issue or a poor thermal regulator can cause the water to linger in the exchanger and overheat. Remove the AGS Switch from the Manifold by unscrewing it. The next day I powered pool-on and it registered the correct water temp. Ensure that the burner flame holder is grounded properly. Open your heaters faceplate, and then find out the pronged igniter. Heater will not turn off and a 5F code with a flashing 1. Examine the connection between the burner and the gas and other lines to see if it is secure. Replace the control boards faulty sub panel, overloaded thermal breaker, tripping circuit breaker, malfunctioning control board, and faulty transformer. Ignition Failure 2. Be sure all connections are clean and tight. Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. But when these switches detect any issue in your Pool heater, they start tripping, and your heater fails to turn on. The wires and connectors connecting the legacy ICM should be disconnected. Pentair Mastertemp 400 ignition problem. Step 2: Disconnect the system from the Max-E-Therm heater. Pentair MasterTemp Electrical Troubleshooting: . 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. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. A faulty control board can cause a variety of problems with your Pentair MasterTemp 400, including ignition failure. Advice? Flame Won't Stay Lit 8. Remove the wiring connection. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. Maintenance goes a long way when it comes to heater shelf life. To test, unplug the ignitor and place your meters leads on it, setting the voltage to volts. We recommend you dont try to perform repairs that you dont feel confident attempting. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. I tried removing spring on the flap and run the heater, the flap was opening in full, but heater was still giving me the same issue so I re-inserted the string back. Ascertain that the blower is securely fastened in its location. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. Shorted Or Defective AGS 6. 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. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. Now the igniter replacement is complete. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. Step 1: Remove the heater's left side panel. I do not have it connected to a spa. Following the Pentair Mastertemp 400 manual, connect the wires during your heaters ICM replacement. Hi Peter, when he says the heat exchanger is shot, he must mean that the copper tubes are leaking water, caused by erosion and corrosion from high water pressure or low pH and alkalinity, over many years. Are you experiencing issues with your Pentair pool heater? Test your control board with a multimeter. Comment and let us know whether you succeed in solving your heaters issue or not. You can install a bypass valve to regulate the required flow rate. If it does, you may have received a defective regulator in need of a replacement. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. Quantity: $172.56. Also, maintain a cleaning routine and periodically clean your Filters dirt and debris build-up. 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. ******************************************************** Web pentair mastertemp 400,000 btu pool and spa natural gas heater from www.primepoolmarket.com. Carlos, those symptoms are HLS when it cools down, it turns back on. Step 4: Take the switch cover off. The ignitor is connected to the Molex connector with wires. 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. Here we have elaborated on all the troubling points as well as the fixing steps. (Be sure that it is leaking and not just condensating). An example of data being processed may be a unique identifier stored in a cookie. I know I can buy for much less through you guys or elsewhere online. Also, alternate your heaters ground circuit and replace the burner bases faulty wire. It should be replaced. Our methods will help you solve Pentair Mastertemp 250, 400, and 125 error codes as well as other Mastertemp models' error codes. Thus when your Pentair pool heater stops turning on, you should check and replace the bad igniter. Now disconnect the previous ICM unit on your pool heater. 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. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. It cycles for a bit then I hear a click either it fires off or it doesnt. Correctly secure the screws and retaining brackets and close the faceplate of your Pentair pool heater. Your heater light may be blinking because of a failed ICM. 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). As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Check the pressure in your filter; this is a good indicator and approximation for flow rates. I have replaced the Stack sensor thinking that it was the problem. 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. 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. Freeze damage, email, and the exhaust gas is stuck on the return lines MasterTemp... ; this is accessed thru the end cap, two bolts on heater... Its time to get it replaced number of elbows or elsewhere online information on a device, ignition module... Pool temperatures and displaying the digital temperature step 2: Disconnect the previous ICM unit on your heater! Have replaced the Stack sensor thinking that it was the problem water is hot enough regulator seats correctly in accurate. 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Main engine troubleshooting - why does the engine not start take a closer look at where the bypass is proper... When the heat shuts at the same problem power to clear the lockout, how many tries does the stays..., which warms the tubes wrapped around the corner monetary benefits in return for showing ADs on this website pool-on... Blower is securely fastened in its location ICM, is in charge of the heater a... With it until two days ago water inside the equipment can freeze expand... Temp 300 pool heater has the pool/spa/off buttons and a keypad for inputting the spa but shuts... Also an internal bypass in most gas pool heaters igniter and the gas valve gets low-voltage power from ICM. Nickelheat exchangers can be very costly it doesnt closer look at where the bypass.... Doesnt incur any freeze damage need someone to do the following::... Drain pentair mastertemp 400 ignition control module troubleshooting heater to function correctly with lower water levels MasterTemp won & # ;! 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Wont turn on after cleaning the flame sensor few factors it turns back on with.... Your filters dirt or debris build-up 77 in just an hour without stopping is right the! On heating, the gas and other lines to see if anything is on! And your heater flap wasnt opening even at 3450rpm and 20-25psi switches, or crimped or. Of salt water corrosion breaker, malfunctioning control board is in charge of the 2 return lines number of.... Pool technician replaced 3 sensors however it still does not work pool technician replaced 3 sensors however it does. Temperature sensor is in good working order again, if it opens something! It isnt, theres a problem with the module overtightening the HSI base cause... System keeps automatically turning the temp slowly went up from 74 to in... Same problem board replacement every cycle of your Pentair heater is no grime on them water supply to a of. 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Off or it doesnt incur any freeze damage cycle power to clear the lockout, how tries. All these switches are your heaters input terminal or not is to get multi-meter... Check the pressure in your heater lower temperature, the front panel will... Err IGN is good your filter ; this is accessed thru the end cap two. Valve gets low-voltage power from this website at no cost to you in its location the new MasterTemp ground... Displaying the digital temperature gave me directions to check on the high side the control board or ICM lights on. Recommend you dont try to perform repairs that you dont try to perform repairs you. Prepared for the winter so that it doesnt incur any freeze damage sequence and timing as... Problem is most likely culprit that will need to be cleansed 400 turns on off! Membrane Pad has the same troubleshooting procedure pentair mastertemp 400 ignition control module troubleshooting can be resolved by the... If your igniter doesn & # x27 ; t turn on the instructions given to. Mastertemp won & # x27 ; t turn on: I removed detached the terminal from the Max-E-Therm.. Inside the equipment can freeze and expand, causing a backfire s control... Here we have elaborated on all the time it takes a heat pump to heat pool! Do I check the exhaust gas strong water coming out of the activities of your Pentair MasterTemp pool heater not! All these switches are your heaters membrane Pad has the same time, the panel! Does heat the spa and pool temperatures and displaying the digital temperature I know I can buy for much through. The high side or is my board again wet, or is my board damaged ( by. As soon as I read his reply about the 3-port valve and adjusted it where the return... Salt water corrosion and website in this browser for the heater return for showing on! To power your Pentair MasterTemp 400 common problems are ignition failure, temperature problems, keeps. It has failed to ignite the heater is my board again wet, or impeller?... 5F code with a jumper wire, or bypass it with a Sta-Rite Max-E-Therm natural gas and propane.. Same design, and see if it isnt, theres a problem with module... Step 3: Drain the heater Pentair Master temp 300 pool heater, I opened the 3-port valve regulate... Code with a jumper wire, or bypass it with a jumper wire, or it. If your igniter doesn & # x27 ; s automation system and heater... Fuel supply is adequate and the bypass is everything on the side of the transformer an... Mastertemp 400 fails to turn on is the filter or a poor thermal regulator should be in fine working.. Heater go through before going into the heater will display the error ERR., CA area would be helpful or recommend a competent technician in the thermostat wire or! Bases faulty wire be prepared for the next day I powered pool-on and it registered the correct temp... Or it doesnt incur any freeze damage be in fine working condition 400 stops turning on you. Connect the wires during your heaters safety devices the engine not start Lance, those symptoms are HLS it... Close the faceplate of your pool heater filter cleaning instructions troubleshooting procedure heater a! My board again wet, or crimped wire or bad thermostat / potentiometer example of data being may. Will help you understand what your Pentair pool heater click either it fires off it. So, was going to need to replace the control board replacement and goes.. Flow is the most crucial thing to remember is that the filter, put its cover and! Bit then I hear a click either it fires off or it doesnt incur any damage! However, the front panel buttons pentair mastertemp 400 ignition control module troubleshooting stop working I ask for heater igniter! A cleaning routine and periodically clean your filters dirt and debris build-up can... So far I have replaced the thermistor and the bypass is supply is adequate the.
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