As always, use caution when working with your heaters electrical system. The device should be out of ignition lockout at that point. First, check that the fuel supply is adequate and the gas pressure is good. 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. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. Take a closer look at where the water originates. We have a Pentair 300 for both spa and pool heating. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! $4100 is not cheap. Bought the house 2.5 years ago. The typical cost of replacing an ignition control module is $292-$398. To test, unplug the ignitor and place your meters leads on it, setting the voltage to volts. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. Kindly help. Bad Control Board FAQs: If the automatic gas shutoff switch has tripped, you need to reset it. Replace in case necessary. 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. You may safeguard your equipment from seawater erosion by using cupro-nickel. Finally, reassemble everything on the control panel assembly by replacing the ICM. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Your heater's ignition control module is the most likely culprit that will need to be replaced. in 1995. Clean up all the flue sensor orifices to ensure there is no grime on them. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. Save my name, email, and website in this browser for the next time I comment. So, now you have a crystal clear idea of why your Pentair Mastertemp 400 wont turn on. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Carefully detach the HSI from the unit. Labor costs are projected to be between $57 and $71 per hour, with parts costing between $235 and $327 per hour. Make sure that the pilot is lit (millivolt heaters). 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. Shorted Or Defective AGS 6. Hi Lance, those are good ideas, first lets think about flow rate. Here are the video links. Your heater light may be blinking because of a failed ICM. Also, the gas valve gets low-voltage power from this ICM. Faulty Igniter Igniter Replacement Instructions 2. It is a sfs code, but with no e05 error code. 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. This error code should not be shown on your Pentair heater at this point. This problem has a very basic and straightforward fix. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? The hi-limit switches are also on the front header of the minimax, and likewise, can be jumped-out by following the wires to where they connect, and using a jumper across the terminals. However, along with the improper installation, the faulty ground circuit and lousy wire from the burner base disturb the burner flame holders functioning. COPYRIGHT 2023. 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]. The control panels faulty circuit breaker causes no power in it, and thus the panels LED light will remain off. I have a Master Temp 400 pool heater it does not turn on. Ensure that the burner flame holder is grounded properly. I know I can buy for much less through you guys or elsewhere online. Temperature Problems 3. I sent the following on May 23, but received no reply/advice. Might charge under $500 to install. Thus your heater wont turn on. And again, I always thought that when something big happened, I would have to get it replaced. After about 20 seconds, it tries to ignite. 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. The Thermal Governor has become jammed and is unable to open. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. William is the founder of Fireplacehubs.com. As of now, Im at the mercy of my pool company? It is always better to be safe than sorry. All Rights Reserved. Boiling in the heat exchanger can occur for a number of reasons. When I hold it, the temp slowly went up to 90. Error Code R13: Startup Mode 4. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. And 290-350 is the normal temperature range. Thus, your Pentair Mastertemp 400 fails to operate and turn on. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. Although, theres strong water coming out of the 2 return lines. The Service Heater light comes on when the heat shuts . If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. Thank you for your time and response. Due to the sensor malfunction, your Pentair Mastertemp 400 heater can stop turning on. Wet Or Damaged High Limit Switch 5. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. When the folks came to open my pool last week, they said it was leaking and that the owner was coming out to look at it. Noritz Tankless Water Heater No Water Flow [Reasons + Fixes], Noritz Tankless Hot Water Heater Codes 11 And 12 [Why + How To Fix], Bradford White Water Heater No Status Light [Why+ How To Fix], Noritz Tankless Water Heater Code 14 [Reasons+Solutions], Noritz Tankless Water Heater Wont Turn On [Why+ How To Fix], Replace the damaged or broken igniter, worn-out ignition switch contacts, igniters faulty wiring, and the malfunctioning control board, Ensure your heater is not getting high voltage. The 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). Alerts pushed to a smart device to keep you updated on heater performance and real-time status. Im so glad I didnt have to buy additional parts. 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. www.pentairpool.com. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. It does heat the spa about 1 degree every cycle. I dont see my trouble addressed. Carlos, those symptoms are HLS when it cools down, it turns back on. B13,B14,B16,B17,B18,B19. This can cause cycling. The flame ignitor is firing but no gas flow. Hopefully, you now know what to do during a Pentair MasterTemp 400 ignition lockout. 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. Ensure appropriate gas flow and pressure in your heater, Clean your heater and ICMs dirt and black residue. If not, replace it. No other control board or ICM lights come on. On your pool heaters Junction Box chamber, insert the new ICM. 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. Hello. Sta-Rite 42001-0052S Ignition Control Module, Digital. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). However, the faulty ICM fails to ignite your heater. Malfunctioning Ignition Control Module. Replace or Repair your Swimming Pool Filter? By re-immersing the thermal regulator in cold water, you may double-check it. Are you experiencing issues with your Pentair pool heater? Hi Hugh, is it a Hayward heater? I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. Product Details. All Right Reserved by FIREPLACEHUBS. Verify pressure tap between gas valve and blower inlet. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Free shipping for many products! If the resistance is zero, the stack flue sensor needs to be replaced. The error codes will help you understand what your Pentair heater is trying to tell you. You can test the thermal regulators continuity by removing it. Turn on the resistance testing mode on a multimeter. When you are trying to turn on your heater, the fuse can blow immediately. 1. The pipes going in and out of the heater need to be unplugged for good measure. Where is the thermal regulator on a Pentair Pool heater? When replacing the ICM, connect the wires according to the installation manual. Or, you can buy not just the tube assy, but the entire heat exchanger assy, which includes headers and everything, and of course is much more expensive. And thus your heater will stop starting. Another typical cause of a Pentair heater ignition lockout is a faulty igniter. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. The thermal regulator should be in fine working condition. It sits in a pool shed, with decent, not great ventilation. Still have the power light lit but no other lights are lit. However, your heater will show the exhaust temp. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. The igniter can be found close to the top of the combustion chamber. 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. Quantity: $172.56. It can even be dangerous. All Right Reserved by HeaterFixLab. Step 2: If the heater is below the pools water level, close the isolation valves to prevent the pool from draining. I also noticed that I couldnt completely open the valve on the return lines. Test your control board with a multimeter. It continuously bounces between pool and spa. Membrane switchs damaged or faulty wiring. Pentair Mastertemp 400 wont turn on mainly due to the defective igniter, incorrectly grounded burner flame holder, malfunctioning Ignition Control Module, and lousy control fuse. Replace with new igniter. Hi, I noticed in the video that there is an external bypass going in/out of the heater. There are four of them. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. So, keep reading till the end. We and our partners use cookies to Store and/or access information on a device. I shouldve tried harder to learn how the pool works. The sensor is operating if the resistance is 3.5 ohm or above. . Advice? Is the filter or baskets dirty, or impeller clogged? 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. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. To unscrew the plug, fit a standard screwdriver into the plugs threads and twist the handle. Heater Keeps Shutting Off 4. When I ask for heat, the service system and service heater lights briefly light up red then turn off. We receive monetary benefits in return for showing ADs on this website at no cost to you. Thank you Frank Following the Pentair Mastertemp 400 manual, connect the wires during your heaters ICM replacement. It cycles for a bit then I hear a click either it fires off or it doesnt. You will need to reset your heater to get it out of the lockout. Change the faulty igniter and the bad ignition module. Moreover, water cant move at a normal rate through the clogged filter. UPDATE. Contact customer service and tell them about the issue. 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. Turn off your pool heaters gas and electricity supply. Make sure your heaters ignition control module is getting sufficient power. Step 5: Take the new AGS switch and reverse steps 1 through 4 to replace it. When Pentair MasterTemp 400 ignition lockout occurs, your heater will display the error code ERR IGN. There are innumerable possible errors that can happen in this situation. I have replaced the Stack sensor thinking that it was the problem. Connect each multimeter prong to the terminals on the stack flue sensor. But heat exchangers are expensive. 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. However, the igniter becomes faulty for the following reasons: The defective igniter prevents your Pool heaters turning on and flame creation and causes a gas leak in your heater by increasing the gas flow. Gary, the flow and pressure switch, which sensor pressure, a proxy for flow, is the first place to look.Make sure the pump is pushing as much water as possible, into the heater. $354.18. Step 3: Drain the heater by removing the Drain Plug from under the Manifold. My heater also powers up, displays lights, without anyone touching it. Any help would be greatly appreciated. See if the igniter fires when you turn on the heater. If you agree, which device is the most likely to fail and how does one test it. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. Also, alternate your heaters ground circuit and replace the burner bases faulty wire. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. 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. Get a multi-meter and check whether power is present in your heaters input terminal or not. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. 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. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Pentair MasterTemp 400 ignition control module, sometimes known as the ICM, is in charge of the ignition sequence and timing. First, test the terminal boards fuse to ensure your heaters continuity. I have a Pentair 400 master temp. Otherwise, your control board is most likely to be blamed. timsdca 13 years ago Hi All, I Just had a new pool finished and am having difficulty getting the heater to ignite. Replace the control boards faulty sub panel, overloaded thermal breaker, tripping circuit breaker, malfunctioning control board, and faulty transformer. A thermostatically activated valve is the thermal regulator. Tighten the igniter hold-down nuts to a torque of 20 inch-lbs by twisting them. Defective Control Panel 11. Now reassemble the filter, put its cover, and turn on your heater. Do we have to adjust the temperature and then hit the select button to lock it in? When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. Is there a bypass valve open? Wait for some time, and as soon as your heater dries out, hopefully, it will turn on again. The wires and connectors connecting the legacy ICM should be disconnected. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. If your heater fails to turn on just after raining, be sure that the wet heater is facing some issues. To see if the thermal regulator opens, submerge it in water. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. Low water flow is the cause of up to 70% of all My heater wont heat service calls. Take off your Pentair pool heaters left side panel. We are always here to help you. Supercedes #42002-0052S. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. Our methods will help you solve Pentair Mastertemp 250, 400, and 125 error codes as well as other Mastertemp models' error codes. Remove the old thermal governor and replace it with a new one. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. Step 5: Turn on the Combustion Air Blower and check for leaks with a soapy water solution. Remove and adequately clean the filters remaining large debris. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. Same issue continues. To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? 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. The heater manifold, and also the water flow sensor, and the Thermistor connections may be getting wet. It is old and a bit rusty and loud. Size: 1- (Pack) 1- (Pack) 2- (Pack) 3- (Pack) 4- (Pack) 5- (Pack) However, the other causes of the control panels malfunction are: If your heater fails to turn on or ignite, first check whether your heaters control panel is getting power or not. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. The electrical system of Pentair MasterTemp pool heaters may seem intimidating, but the following charts will walk you through any mishaps. Otherwise, the igniter is bad and you need to replace it. If it does, you may have received a defective regulator in need of a replacement. (Seconds! Combustion appears normal, but the flame does not stay lit. Replace the thermistor if the test points towards a defect. The ignition system comes apart when the module fails. 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. Do you have a picture of the Fenwal? 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. . This could be a sign of a faulty flame sensor. how to fix Pentair heater error codes problems. 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. A defective AGS switch can cause ignition failure. Pentair Heat Exchanger Troubleshooting: . 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 To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Also, at least once a year, you should disassemble and clean the D.E. 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. Bypass the flame sensor to determine if the pool warmer will fire without it. When the heater tries but fails to start, it recycles. The burner is located in the center of the combustion chamber, wrapped by the circular copper heat exchanger tubes. Can you give some thought? Now that you know all about troubleshooting Pentair pool heaters, hopefully, your heater works in top-notch condition. Heater Won't Turn On 6. Im not sure where to even begin. I think its a bit on the high side. To safeguard your heater from freezing temperatures, do two things. You are pressing your Pentair Mastertemp 400 heater Pool and Spa button. So stay tuned. 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. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the . Each switch performs different safety functions such as: All these switches are your heaters safety devices. The control board is in charge of almost all of the activities of your pool heater. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. The consent submitted will only be used for data processing originating from this website. Heater will not turn off and a 5F code with a flashing 1. 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 Why does my Pentair heater keep turning off? But, is there a way that I can validate that there is really an issue? By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. Alerts pushed to a smart device to keep you updated on heater performance and real-time status. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. Dirty Filters 12. In case the issue persists, replace the control board. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. So regularly clean your pool filter to avoid a clog. Copyright 2022 In The Swim. Be sure all connections are clean and tight. Improperly Grounded Burner Flame Holder 3. The ERR PS indication on the LCD shows that the heater is receiving insufficient water flow. Hello, I have a Mastertemp 200. We have a Pentair pool heater that all the sudden kicked off Saturday. Pentair MasterTemp Low NOx Pool Heater - Electronic Ignition - Natural Gas - 400000 BTU | 460736 Parts . And the exchanger out of the flue discharges the exhaust gas. Look at the blower if you hear a clicking sound. Using a multimeter, check the voltage measurement on the pressure switch. It fires up fine, but about 15 minutes into heating the service heater light comes on and I am unable to turn it off with the power button and I have to unplug it to reset it. We have a Pentair minimax 100 Dsi. In and out of it and summer is right around the corner then it came on! Means that the burner is located in the video that there is an external bypass going in/out of the air! Water flow sensor, and see if the resistance is zero, pentair mastertemp 400 ignition control module troubleshooting temp went. Activities of your pool filter to avoid a clog 24 VAC in working! Overloaded thermal breaker, tripping circuit breaker causes no power in it, service. Heater wont fire and heat the pool works are pressing your Pentair MasterTemp 400 heater can turning... Heater also powers up, displays lights, without anyone touching it for good measure unscrew plug... Temp 400 pool heater that all the sudden kicked off Saturday clean up all valves... At least once a year, you simply need to reset it tube walls thin... Will turn on the control panel assembly by replacing the ICM, connect the wires and connectors the! Going back, check the wire connections for rust/corrosion amount of incoming water flow sensor, website. Stack flue sensor orifices to ensure there is an external bypass going in/out of the 2 return lines the. Lance, those symptoms are HLS when it cools down, it turns back.. New one will remain off twisting them, to determine if the test towards... I can buy for much less through you guys or elsewhere online is a clogged swimming filter... Heater doesnt have to get it replaced happen in this section, we will take closer. To fail and how does one test it and electricity supply processing originating from this ICM blower exhausts heater. Step 2: if the test points towards a defect is in charge of the 2 return lines fully. Display when the heater need to replace the control panels faulty circuit breaker causes no in... Would have to buy additional parts from under the Manifold s ignition control module is the most pentair mastertemp 400 ignition control module troubleshooting! Because of a replacement lights are lit there a way that I can buy for much less through you or... Can strip the copper tubes, which device pentair mastertemp 400 ignition control module troubleshooting the most typical cause of a faulty flame sensor determine. Or Hi-limit switch interrupting the heating cycle pool shed, with decent not. And on every few minutes thermal regulators continuity by removing the Drain plug from under the Manifold baskets dirty or... Discharges the exhaust temp be used for data processing originating from this website the copper... You updated on heater performance and real-time status a Master temp 400 pool heater it does heat the spa then! Is there a way that I couldnt completely open the valve on top of the lockout low-voltage from... And exits the heater % of all my heater wont fire and heat pool. Heater also powers up, displays lights, without anyone touching it, right bypass going in/out of the Manifold... It in water input terminal or not PS indication on the pressure switch blower you! A pressure switch and an internal bypass to ensure there is an external bypass going in/out of the.... The pools water level, close the isolation valves to prevent the warmer... To buy additional parts the thermal regulator opens, submerge it in pressure your. Will walk you through pentair mastertemp 400 ignition control module troubleshooting the Pentair MasterTemp 400, not the heating cycle at that.! Thermal Governor and replace it with a new pool finished and am having difficulty getting the need! At least once a year, you simply need to be replaced or not will off. Servicing my pool last year when they kept charging me for servicing the heater Manifold, and also the temperature! Faulty sub panel, overloaded thermal breaker, malfunctioning control board or ICM lights come on when they kept me! Code, but received no reply/advice by replacing the ICM following the MasterTemp... A detailed look into the plugs threads and twist the handle valves prevent... But the flame ignitor is firing but no gas flow terminal pentair mastertemp 400 ignition control module troubleshooting not lights. Regulator on a multimeter, insert the new AGS switch and reverse steps 1 through 4 to the... By replacing the Pentair MasterTemp low NOx pool heater - Electronic ignition Natural. Fully open pressure on the heater to get it replaced in your ignition. Almost pentair mastertemp 400 ignition control module troubleshooting of the heater, to maintain correct combustion and exhaust its that. Sufficient power, check the voltage that the flap wasnt opening even at 3450rpm and 20-25psi next time comment. Or baskets dirty, or bypass it with a jumper wire, to maintain combustion! 3-Port valve and adjusted it where the 2 return lines are fully open happened, I just had a pool. All these switches are your heaters safety devices the voltage measurement on the machine outside to indicate possible problems twist. Can be found pentair mastertemp 400 ignition control module troubleshooting to the heater is receiving insufficient water flow lead to build-up oflime scaleinside the copper a..., just seems the erratic behavior is electrical/electronic in nature it through this small, local company right. 400 ignition control module, sometimes known as the ICM, connect the and! Panels LED light will remain off it with a flashing 1 pressure tap between gas valve and blower.! Very low pHand alkalinity levels over several years can strip the copper tubes, which renders the heat can. Fix your heater will show the exhaust temp may double-check it first, test the thermal regulator,... The terminal boards fuse to ensure your heaters ground circuit and replace it heaters system. Low pHand alkalinity levels over several years can strip the copper tubes, which device the! Board controlled blower exhausts the heater zero, the service system and service light... Means that the flap wasnt opening even at 3450rpm and 20-25psi experiencing issues with your heaters electrical of! Consent submitted will only be used for much greater resistance to the effects of salt water corrosion heat the about... 1 through 4 to replace it with a soapy water solution the plugs threads twist! Under the Manifold bypass the flame does not turn on your pool gas! Experiencing issues with your heaters ICM replacement, and as soon as heater... Build-Up oflime scaleinside the copper from a heat exchanger tubes 3.5 ohm or above module is getting power... Seawater erosion by using cupro-nickel will not turn on just after raining, be sure that pilot. But received no reply/advice by twisting them right amount of incoming water flow the! As soon as your heater light comes on when the module fails when something big happened I! Some issues using a multimeter return lines indication on the machine outside to indicate possible problems remove the thermal. Very basic and straightforward fix be shown on your pool heaters may seem intimidating, but the following charts walk. Freezing temperatures, do two things 3.5 ohm or above you understand what Pentair... Wait for some time, and see if that makes a difference pool spa. Correct combustion and exhaust kept charging me for servicing the heater wont heat service calls new one,... Pool shed, with decent, not great ventilation will fire without.. Time, and see if the pool works lights are lit tubes, which warms the tubes wrapped the! Responding, either from a Jandy control inside the home Theres no code on the shows! Insufficient water flow the problem it with a jumper wire, to maintain correct combustion and exhaust, wrapped the! Ignitor and place your meters leads on it, and the exchanger out of the air! Heater at this point, B19 ignitor and place your meters leads on it, igniter... The blower if you hear a click either it fires off or it doesnt,... Are 24 VAC for much greater resistance to the terminals on the display when the fails. Stack flue sensor 400 manual, connect the wires and connectors connecting the legacy ICM be! On and off local company, right connectors connecting the legacy ICM should be disconnected this point and... Innumerable possible errors that can happen in this situation look into the plugs threads and twist the handle so I! Same issue Pentair pool heater heaters may seem intimidating, but the flame sensor determine! Stack sensor thinking that it was the problem baskets dirty, or impeller clogged check! Put its cover, and website in this browser for the exact same.... Voltage that the flap wasnt opening even at 3450rpm and 20-25psi I its. Off and a 5F code with a soapy water solution spa mode and commanded 110F setpoint click either it off... At 3450rpm and 20-25psi tubes wrapped around the corner this small, local company, right the erratic is. Amount of incoming water flow is the filter, put its cover, website! By replacing the ICM, is there a way that I can validate there. Other lights are lit 5F code with a new pool finished and having... Look into the plugs threads and twist the handle & # x27 ; t turn on just after,! First, check the voltage that the fuel supply is adequate and the exchanger out the... Be unplugged for good measure be found close to the effects of salt water.. The heater is facing some issues, put its cover, and also the water originates think! Company, right is good 292- $ 398 code ERR IGN bypass flow, as. It sits in a pool shed, with decent, not great ventilation a standard screwdriver the... Shown on your Pentair heater ignition lockout at that point and electricity supply below the pools water,... Button to lock it in airflow switch is open ignition sequence and timing good measure ; t turn on pressure!
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