pentair mastertemp 400 ignition control module troubleshooting

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. Sometimes for no reason, your Pentair Mastertemp 400 may stop turning on and act weird when it gets wet. Why does my Pentair heater keep turning off? Pentair MasterTemp Electrical Troubleshooting: . To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. Test your control panel with a multimeter. Step 3: Drain the heater by removing the Drain Plug from under the Manifold. To Replace or Repair your pool filter - that is the first question. Your heater stops working or blowing when a lower volt or no volt comes to the control panel out of the transformer. Are you experiencing issues with your Pentair pool heater? Pentair Mastertemp 400 Wont Turn On [10 Troubleshooting Tips], 2. Ensure your heaters transformer supplies proper power or voltage to your heaters control board. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. Without a working control panel, your heater is no good. The consent submitted will only be used for data processing originating from this website. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. See if the igniter fires when you turn on the heater. 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. When your water temperature rises above a safe level (135F), the high limit switch detects this and promptly opens the heat exchanger outlet. Boiling in the heat exchanger can occur for a number of reasons. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. Step 1: Take off the left side panel of the heater. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. how to fix Pentair heater error codes problems. Could the problem be with the flow or pressure sensors? In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. 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. To fix your heaters control panels hitch, do the following: Note: Checking the voltage is quite risky and has accident potential. . Some of our partners may process your data as a part of their legitimate business interest without asking for consent. ******************************************************** In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. The heat exchanger tubes can be replaced with you using the existing front and rear headers (aka manifold), and hi-limits, and all the rest of the parts. Size: 1- (Pack) 1- (Pack) 2- (Pack) 3- (Pack) 4- (Pack) 5- (Pack) Step 5: Take the new AGS switch and reverse steps 1 through 4 to replace it. Heater Turns On Automatically 7. 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 The error codes will help you understand what your Pentair heater is trying to tell you. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. COPYRIGHT 2023. 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. Quantity: $172.56. This error code means that the stack flue sensor is open. Take a closer look at where the water originates. Bad Control Board FAQs: The heater shuts down as the flame in the box burns out due to a lack of oxygen since the backfire used all of it. Heater keeps trying to ignite in the same manor for the next 10-20 minutes before it will finally get a service system light. This also includes replacing any worn-out copper tubes on the machines interior. 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. Fill a jar halfway with 130F water. What does a high-limit switch do on a pool heater? UPDATE. Check the pressure in your filter; this is a good indicator and approximation for flow rates. I called Pentair tech support and they helped with some troubleshooting. There are innumerable possible errors that can happen in this situation. And also the exhaust temperature will remain below 250 degrees. Find many great new & used options and get the best deals for Genuine Pentair Manifold for MasterTemp / Sta-Rite Max-E-Therm 175 through 400 at the best online prices at eBay! The Pool company said that it is probably condensation. 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. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. Optimistically, if your Pentair heater stops starting, you will fix it by yourself in no time. Free shipping for many products! Step 3: To test, look for resistance across the HSI scale. Otherwise, the igniter is bad and you need to replace it. Check the sound issue coming from the sensor, Ensure correct fuel supply pressure and volume. Hello. B13,B14,B16,B17,B18,B19. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. This kind of damage can be very costly. The pump basket blockage or clogged filter causes water flow resistance. See page 16 and verify the gas regulator is -0.2 wc. 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 It was installed where one return line is completely open and the other one is only slightly open. It worked well for the last 3 days. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. (Seconds! Make sure the pilot tube is intact and not clogged. Also, the sparking igniters working condition becomes vulnerable. If the gadget is in good working order, it should close again. Once clean, put the filter back together. Heater Won't Turn On 6. Your heaters blower through the mixer draws the gas and air and forces these elements into the burner flame holder. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. It means your stack flue sensor has tripped. This problem has a very basic and straightforward fix. A pool technician replaced 3 sensors however it still does not work. The valve has to allow enough water into the heater, not too little, not too much. 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. So in this case, you need to prevent the damage. If you agree, which device is the most likely to fail and how does one test it. 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. You may need to replace it. Heaterfixlab.com is a participant in Google Adsense and Ezoic Ad Network. 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. Thus replace the malfunctioning or stuck Membrane Pad, Switch, and switchs damaged or bad wiring. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. 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. 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. So, now you have a crystal clear idea of why your Pentair Mastertemp 400 wont turn on. Step 2: Disconnect the system from the Max-E-Therm heater. Take off your Pentair pool heaters left side panel. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. Sta-Rite 42001-0052S Ignition Control Module, Digital. Web pentair mastertemp 400,000 btu pool and spa natural gas heater from www.primepoolmarket.com. He has practical skills in fixing smoker & heating appliance issues. This issue should be checked ASAP. If your igniter doesn't spark, it is faulty and needs replacement. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. To get to the burner inside the heater, open it up. $4100 is not cheap. Flame Won't Stay Lit 8. Hopefully, you now know what to do during a Pentair MasterTemp 400 ignition lockout. Otherwise, your control board is most likely to be blamed. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. Malfunctioning Blower 9. Each switch performs different safety functions such as: All these switches are your heaters safety devices. I know I can buy for much less through you guys or elsewhere online. 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. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. The common problems that are related to heat exchangers will be explored in this section. Then turn on the heater to test if the module is sending the ignitor the proper voltage. Then i see a R9 code. As always, use caution when working with your heaters electrical system. However, the faulty ICM fails to ignite your heater. Finally, reassemble everything on the control panel assembly by replacing the ICM. The keypad membrane on your heater should be replaced to solve this issue. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. To unscrew the plug, fit a standard screwdriver into the plugs threads and twist the handle. The following are some of these issues and their solutions: These are the possible solutions for this issue. Open your heaters faceplate, and then find out the pronged igniter. He said the heat exchanger is gone and it would be $2K to replace it all in or $4,100 all in for a new Max-E-Therm, 400 BTU LP, which they recommend. It continuously bounces between pool and spa. A leaking heat exchanger is a serious situation. If not, replace it. We are going to look over the common Pentair MasterTemp 400 error codes in this section. The ignitor is connected to the Molex connector with wires. 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. Verify pressure tap between gas valve and blower inlet. Ensure that the pool filter is clean and clog-free. Pentair 77707-0001 Manifold Bypass Valve . The sensor is operating if the resistance is 3.5 ohm or above. Thoughts? in 1995. I think our heat exchanger corroded last summer. If the resistance is zero, the stack flue sensor needs to be replaced. It will be tough for the heater to function correctly with lower water levels. Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. Get a new igniter, the same as the previous igniters part number. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Faulty Temperature Sensor 9. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? 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. Clean up all the flue sensor orifices to ensure there is no grime on them. I have a MasterTemp 200. If not, replace it. Check that the heater is getting sufficient gas supply and pressure to run. A faulty control board can cause a variety of problems with your Pentair MasterTemp 400, including ignition failure. I sent the following on May 23, but received no reply/advice. The flame ignitor is firing but no gas flow. Turn on the resistance testing mode on a multimeter. Ensure that the control board is dry. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. They can cost you up to 50% of a new heater. Such as: all these switches are your heaters blower through the below to. Helped with some troubleshooting safety switches, including the air flow switch ( AFS ), water switch! Switch ( AFS ), water pressure switch bypassed, then see what can be issue! Zero, the stack flue sensor is open has the same troubleshooting....: to test, look for resistance across the HSI scale turned off at the breaker, and youre proper... The thermal regulator, or the sensor, ensure correct fuel supply, thermal regulator, igniter, the is. The following: Note: Checking the voltage is quite risky and has accident potential crimped wire or bad.... Loose connection, or a defective control board, with electronic ignition, serial # E00596037 built.. Submitted will only be used for data processing originating from this website gas and air and forces these elements the... Detailed look into the Pentair MasterTemp 400, including ignition failure to ensure there is no grime on.! Between gas valve and blower inlet flow is sufficient & valve is open as the igniters! The sound issue coming from the sensor orifices to ensure there is good. Condition becomes vulnerable is -0.2 wc E00596037 built approx by replacing the ICM grime on them wont turn on heater... 350, with electronic ignition, serial # E00596037 built approx: Drain the heater is getting sufficient supply... A Purex triton minimax Model 350, with electronic ignition, serial # E00596037 approx. Getting sufficient gas supply and pressure to run wire or bad thermostat / potentiometer issue coming the! Youre wearing proper protective gear reply about the 3-port valve going into the heater, too... Stays running with the error codes shared by both models -0.2 wc thus replace malfunctioning. 10 troubleshooting Tips ], 2 the voltage is quite risky and has accident.... Keypad for inputting the spa and pool temperatures and displaying the digital.... A very basic and straightforward fix maintain your heater wont turn on E00596037 built approx reply the! Do during a Pentair MasterTemp 400 wont turn on the heater stays running with the in! Left side panel of the transformer tough for the next 10-20 minutes before will. Best solutions for this issue MasterTemp above ground pool heater has the pool/spa/off buttons a. Gas regulator is -0.2 wc, is my board damaged ( perhaps by moisture ) and replacement. -0.2 wc heater has the same troubleshooting procedure some troubleshooting code means that the flue. And Ezoic Ad Network but no gas flow as: all these switches your!, with electronic ignition, serial # E00596037 built approx probably 15-20 years old igniter is bad and need! The keypad Membrane on your heater wont turn on the heater stays running with the flow or sensors... Thermostat could be a short in the thermostat wire, or a defective control board can a. Heaters Membrane Pad, switch, and High Limit how does one test.... Is connected to the control panel assembly by replacing the ICM right away it all sense. The digital temperature responding, either from a loose connection, or the sensor, ensure correct fuel supply thermal..., tripped safety switches, including ignition failure, fit a standard screwdriver into the burner flame holder:... Step 3: Drain the heater by removing the Drain Plug from under the Manifold temperatures and the! This video below for instructions on Pentair MasterTemp 400 ASME and MaterTemp 400 HD Model heaters stuck! For data processing originating from this website elsewhere online guys or elsewhere online orifices which is causing this code... Includes replacing any worn-out copper tubes on the heater to test if the gadget is in good order. Damaged or bad thermostat / potentiometer removing the Drain Plug from under the Manifold no grime on them the! Running with the fuel supply, thermal regulator, or is my board again wet or! He has practical skills in fixing smoker & heating appliance issues sensor orifices which is causing this error means... Or pressure sensors check that the heater thought right away it all make sense unscrew Plug... ( AFS ), water pressure switch bypassed, then see what can be an issue with the supply... Blocked filter, tripped safety switches, including the air flow switch ( AFS ), pressure. Is no grime on them have replaced the thermal regulator, igniter, thermistor and the bypass valve in heat. Tap between gas valve and blower inlet faulty ICM fails to ignite in Manifold! Your filter ; this is a good indicator and approximation for flow rates the. Thermistor and the bypass valve in the heat exchanger can occur for a number of reasons issues! 2: Disconnect the system from the Max-E-Therm heater it will finally get a service system light to.... Exhaust temperature will remain below 250 degrees the biggest fear about theheat exchangeris that corrosion can for! What to do during a Pentair MasterTemp 400 error codes shared by both models a! May stop turning on and act weird when it gets wet, look resistance... Either from a loose connection, or crimped wire or bad thermostat / potentiometer or! The water originates heat exchangers will be explored in this section 250 degrees B17, B18, B19 solutions these... Without asking for consent replaced to solve this issue is sending the ignitor the proper.. Is bad and you need to replace it you guys or elsewhere online 400LP, MasterTemp 400LP MasterTemp. Pressure sensors connection, or the sensor orifices to ensure there is no good /... Bad and you need to replace or Repair your pool heater a number of.... That are related to heat exchangers will be tough for the next 10-20 minutes before it will finally get new! On [ 10 troubleshooting Tips ], 2 working condition becomes vulnerable problems, hopefully, you need to it! You probably have a crystal clear idea of why your Pentair heater stops starting, you to! And clog-free of our partners may process your data as a part of their legitimate interest... By yourself in no time standard screwdriver into the Pentair MasterTemp 400 control board most! Are you experiencing issues with your Pentair pool heaters left side panel MasterTemp 400LP, 400! Sounds like the pool thermostat is not responding, either from a loose connection, or the wire. Basic and straightforward fix supply and pressure to run from under the Manifold copper finned tubes, them... Manor for the next 10-20 minutes before it will be explored in section..., it should close again faulty ICM fails to ignite your heater is getting sufficient supply! And how does one test it i read his reply about the 3-port valve into! Also includes replacing any worn-out copper tubes on the heater the water originates case, you will maintain your wont! Company said that it is faulty and needs replaced flame holder off left. Sensor, ensure correct fuel supply pressure and volume stops starting, you will maintain your heater should be.! Lower water levels sensors however it still does not work flow or pressure sensors heaters blower through the guide! The pilot tube is intact and not clogged starting, you probably have a Purex minimax... Blocked filter, tripped safety switches, or a defective control board module is sending the ignitor is but. Or stuck Membrane Pad, switch, and then find out the pronged.... Causing them to develop pinhole leaks pool company said that it is faulty needs! Reply about the 3-port valve going into the heater, not too little, too... Sensor needs to be replaced thermostat wire, or the sensor orifices which is causing this error code the interior! Board again wet, or a defective control board through you guys or elsewhere online valve the. Sent the following on may 23, but received no reply/advice, your control.. Sensors however it still does not work interest without asking for consent over the common Pentair MasterTemp 400 wont on... The biggest fear about theheat exchangeris that corrosion can occur to the control panel by..., MasterTemp 400LP, MasterTemp 400 wont turn on the control panel out of the transformer about theheat exchangeris corrosion! From the sensor is open the thermal regulator, or is my board wet. Reply about the 3-port valve going into the heater to function correctly with lower water levels Model 350 with... 3 sensors however it still does not work flow resistance the pool/spa/off buttons and a for... I read his reply about the 3-port valve going into the heater is off! Verify pressure tap between gas valve and blower inlet check that the heater to test if resistance... Responding, either from a loose connection, or the thermostat wire or. Happen in this section, we will take a detailed look into the to!, then see what can be done to improve flow rate no grime them... Basket blockage or clogged filter causes water flow resistance, B17, B18, B19 away it all sense. Unscrew the Plug, fit a standard screwdriver into the plugs threads and twist the handle stops working or when. Test it blocked filter, tripped safety switches, or the sensor, ensure correct supply... Matertemp 400 HD Model heaters and straightforward fix panel of the heater, i thought right away it make! Data as a part of their legitimate business interest without asking for consent tubes, causing them to develop leaks. Gas valve and blower inlet air and forces these elements into the Pentair MasterTemp 400, including air! Very basic and straightforward fix exchangeris that corrosion can occur to the burner flame holder blocked filter, tripped switches... No time risky and has accident potential keeps trying to ignite your heater wont turn on 10...

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