The control board is the culprit when there is no click. Step 5: Take the new AGS switch and reverse steps 1 through 4 to replace it. We are always here to help you. 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. Now the igniter replacement is complete. Also check that the blower comes on. 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]. Product Details. I replaced the HLS twice to no avail. Might charge under $500 to install. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. Disconnect the igniter from your heaters motherboard wires by removing the screws and retaining the bracket. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. Tighten the igniter hold-down nuts to a torque of 20 inch-lbs by twisting them. From the Max-E-Therm heater, disconnect the system. UPDATE. A pool technician replaced 3 sensors however it still does not work. Web pentair mastertemp 400,000 btu pool and spa natural gas heater from www.primepoolmarket.com. Step 1: Take off the left side panel of the heater. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. Dont stress! The other effective solutions are: Your Pentair Mastertemp 400 fails to turn on due to the faulty membrane switch. Bought the house 2.5 years ago. Check your igniter module. The Thermal Regulator is located behind the threaded plug in the Inlet/Outlet Manifold, between the inlet and outlet fittings. To reach the switch cover bolt, unbolt and remove the Upper Left and Upper Right Jackets from the heater. 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. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? Hello Remove and adequately clean the filters remaining large debris. Installing a pool heater is not simple, but is done DIY all the time. No code is present. Make sure the blower is running properly and nothing is impeding the airflow to reset the AFS. when temp is down it kicks on as soon as it goes over setpoint it shuts off. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. William is the founder of Fireplacehubs.com. For the heater to turn on and generate heat, all the safety switches have to be in the on position. I have a Pentair 400 master temp. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. Table of Contents 12 Pentair Heater Error Codes, Their Meanings & Solutions 1. Now, what factors are responsible for these problems and how you can solve these troubles all you will learn by going through this article. Save my name, email, and website in this browser for the next time I comment. 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. Now that you know all about troubleshooting Pentair pool heaters, hopefully, your heater works in top-notch condition. More about us. 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. The possible causes behind an ignition lockout include- failed ignitor, malfunctioning ignition control module, dirty or broken flame sensor, tripped or damaged airflow switch, broken automatic gas shutoff, defective thermal regulator, and bad control board. Web pentair mastertemp 400 common problems are ignition failure, temperature problems, heater keeps shutting off, display not working. To fix your heaters control panels hitch, do the following: Note: Checking the voltage is quite risky and has accident potential. This problem can be resolved by servicing the pump or filter. Follow the actions outlined below to replace it. Then without warning, it started flashing the following error codes: Ad0 then SF 1 then 888 then 128 then r13, then keypad screen would go blank. As of now, Im at the mercy of my pool company? Take off your Pentair pool heaters left side panel. Its possible that overtightening the HSI base will cause it to break. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. They said the 126 display was an error code. Now when these switches become defective, the Membrane Pads indicator light will not show the heating demand status. Heater keeps trying to ignite in the same manor for the next 10-20 minutes before it will finally get a service system light. Plastics, paper products, oils, or mulch accumulated in the Filter, Gain access to your pool heaters filter by removing the filter cover. Supercedes #42002-0052S. To accomplish this, you must: As you turn on the heater, the error code should no longer be on display. Ignition Failure 2. COPYRIGHT 2023. Sometimes for no reason, your Pentair Mastertemp 400 may stop turning on and act weird when it gets wet. Your heater's ignition control module is the most likely culprit that will need to be replaced. Along with the fluctuation the heater cycles. I connected my old termistor and got a reading of 85 degrees. Remove the wiring connection. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. You may safeguard your equipment from seawater erosion by using cupro-nickel. Of course, there is also an internal bypass in most gas pool heaters. To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. Ensure that the pool filter is clean and clog-free. So regularly clean your pool filter to avoid a clog. Sta-Rite 42001-0052S Ignition Control Module, Digital. 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. A thermostatically activated valve is the thermal regulator. Normally you can smell a little gas when it kicks on but it does nothing. We receive monetary benefits in return for showing ADs on this website at no cost to you. And thus your Pentair Mastertemp 400 stops turning on. Is enough water getting into the heater? Any help would be greatly appreciated. Each switch performs different safety functions such as: All these switches are your heaters safety devices. Freeze Damage He loves to share his knowledge & helps others in fixing their units & saving their pockets. It was installed where one return line is completely open and the other one is only slightly open. Ascertain that the blower is securely fastened in its location. Ensure appropriate gas flow and pressure in your heater, Clean your heater and ICMs dirt and black residue. It worked well as usual, heated water to 85F as commanded. Then checks the continuity across the sensor. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. Carlos, those symptoms are HLS when it cools down, it turns back on. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Then check for the blown or faulty control fuse on your heaters system board. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. We receive monetary benefits in return for showing ADs on this website at no cost to you. Can you give some thought? When were done swimming we turn the temp down to a lower setting while the system is running before the system automatically shuts off for the night. Pentair Mastertemp 400 keeps shutting off, Pentair MasterTemp 400 display not working, Pentair MasterTemp 400 blower not working, Torpedo Heater Keeps Shutting Off [9 Easy Fixes], Comfort Zone Heater Not Working [7 Easy Fixes], complete solution guide on Pentair MasterTemp 400 keeps shutting off, 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], How To Adjust Temperature On Richmond Water Heater [Made Easy]. Simply unplug these and turn them off for the winter. . 1. I also noticed that I couldnt completely open the valve on the return lines. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. And then connect the new igniter to your heaters motherboard wires. The pipes going in and out of the heater need to be unplugged for good measure. If the airflow isnt sufficient within this period, the heater will turn off on its own. The electrical system of Pentair MasterTemp pool heaters may seem intimidating, but the following charts will walk you through any mishaps. When I hold it, the temp slowly went up to 90. Examine the area for any clogs or impediments. If your pilot isn't lit, check the gas pressure, air supply, and proper venting. 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. The heater manifold, and also the water flow sensor, and the Thermistor connections may be getting wet. Your Pentair Pool heater displays the E05 due to the low water flow, sooted fuel delivery or venting exchanger, and waterside scaled-up exchanger. The keypad membrane on your heater should be replaced to solve this issue. Cleaning your heat pump on a regular basis will help you avoid this problem. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Thanks for your help! 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. So be careful while tasting the transformers voltage. Hi Lance, those are good ideas, first lets think about flow rate. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. The damaged or wet igniter cant ensure high resistance. (Seconds! 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. You have a working thermal regulator if it opens. 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 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. 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. To safeguard your heater from freezing temperatures, do two things. In about 20 seconds, the gas valve opens and ignition should occur. If the pump is running, its likely that the filter and/or skimmers need to be cleansed. Improperly Grounded Burner Flame Holder, Ignition Control Module Replacement Instructions, Pentair Mastertemp Pool Heater Filter Cleaning Instructions. However, your heaters filter becomes blocked for the following reasons: Over time, the slow accumulation of debris creates a clog in your heaters Filter. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. Take a closer look at where the water originates. Be sure all connections are clean and tight. Thank you for your time and response. Gentlemen, Hi Hugh, is it a Hayward heater? 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. Let us know if you need help finding it. A second major problem with heat exchangers is scaling water conditions and poor combustion. When you switch on the heater and it runs through the 888, 128, R13, pay attention. Ensure your heaters transformer supplies proper power or voltage to your heaters control board. If the problem persists, remove the temperature regulation completely and see whether the heater runs. Also, the gas valve gets low-voltage power from this ICM. 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. To get to the burner inside the heater, open it up. Then replace the faulty ICM. ), Pentair MasterTemp 400 Ignition Lockout [7 Easy Fixes], 2. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Wash them out very carefully with a hose. This error code means that the stack flue sensor is open. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. Malfunctioning Ignition Control Module. Same issue continues. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Pentair Mastertemp 400 Wont Turn On [10 Troubleshooting Tips], 2. Here we have elaborated on all the troubling points as well as the fixing steps. 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 But heat exchangers are expensive. Error Code E06: Stack Flue Sensor Is Shorted 3. Do we have to adjust the temperature and then hit the select button to lock it in? This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. Replace the fuse if blown. ******************************************************** The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. There are innumerable possible errors that can happen in this situation. You need to examine which part is malfunctioning. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. Examine the connection between the burner and the gas and other lines to see if it is secure. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. 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. Burner pulsates or surges, especially on ignition. Turn off your pool heaters gas and electricity supply. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the . 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. What else can impact the temp reading? So, MasterTemp 400 ignition lockout could be caused by a tripped or defective airflow switch. When replacing the ICM, connect the wires according to the installation manual. Alerts pushed to a smart device to keep you updated on heater performance and real-time status. 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. Your Pentair MasterTemp 400 display not working generally means that your unit is not getting power, you have a blown glass fuse, or a defective control board. An HVAC company would install it as well, or an Appliance company. To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. Continue with Recommended Cookies. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. Clean up all the flue sensor orifices to ensure there is no grime on them. When I finally was able to control again (for a time, keypad controls seemed to be disabled), I shut heater off, let it sit for a time. And then replace the fuse or the entire system board. If the resistance is zero, the stack flue sensor needs to be replaced. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . Copyright 2022 In The Swim. This can cause cycling. Otherwise, your control board is most likely to be blamed. The valve has to allow enough water into the heater, not too little, not too much. The Pool company said that it is probably condensation. If there is a low supply of voltage to the control board, it is 00due to the fact that your water heater's transformer has been damaged somehow. Pentair MasterTemp Electrical Troubleshooting: . They can cost you up to 50% of a new heater. As always, use caution when working with your heaters electrical system. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. Alerts pushed to a smart device to keep you updated on heater performance and real-time status. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. Even if your Pentair Masteramp heaters terminal board gets power, the heater wont turn on, which means the faulty fuse is creating an issue. The reading should be 50-500 Ohm at room temperature. After about 20 seconds, it tries to ignite. SFS is stack flue sensor. Make sure the pilot tube is intact and not clogged. 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! Inspect the pump and filter and clean if necessary. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. A leaking heat exchanger is a serious situation. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. Replace it. Any ideas on what the problem could be? 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. Using a multimeter, check the voltage measurement on the pressure switch. Look at the blower if you hear a clicking sound. You can try replacing the control board yourself in case you have some electrical knowledge. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. If it isnt, theres a problem with the module. Get a new igniter, the same as the previous igniters part number. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. 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. All Right Reserved by HeaterFixLab. Thus your heater wont turn on. So Im very happy. We have a Pentair minimax 100 Dsi. Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. 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. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Also, your heater displays the error code ERR IGN. Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. In case there is blockage in the heat exchanger, how do I fix that? Replace in case necessary. Hold down your heaters SPA or Pool button to check your Mastertemp heaters exhaust temperature for at least 10 seconds. And also the exhaust temperature will remain below 250 degrees. After the gas valve opens, the HSI will switch to a sensing mode to monitor the flame. Boiling in the heat exchanger can occur for a number of reasons. The ignition system comes apart when the module fails. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. The airflow switch is factory set and attached to the ignition module. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. Make sure the thermal regulator seats correctly in an accurate position. Heater is Pentair Mastertemp 200, installed May2017. The thermal regulator should be in fine working condition. The sealed heat exchanger surrounds the burner flame holder. An explosion requires a large amount of natural gas or propane to build up in one region. The Service Heater light comes on when the heat shuts . The sensor is operating if the resistance is 3.5 ohm or above. Also, maintain a cleaning routine and periodically clean your Filters dirt and debris build-up. Get a multi-meter and check whether power is present in your heaters input terminal or not. In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. $354.18. Kindly help. 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. Due to the sensor malfunction, your Pentair Mastertemp 400 heater can stop turning on. And again, I always thought that when something big happened, I would have to get it replaced. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open.