Im not sure where to even begin. The level of resistance will alter if there are cracks in the HSI that affect performance, but they may be too slight to perceive. Now disconnect the previous ICM unit on your pool heater. The same is true for the StaRite Maxetherm heaters. Display Not Working 5. Can you give some thought? In case the burner is broken, remove it and replace it with a new one. in 1995. Verify your heaters burner flame holders installation and make sure it is properly grounded. It worked well for the last 3 days. The sensor is operating if the resistance is 3.5 ohm or above. It fires up fine again then the same thing happens. Why does my Pentair heater keep turning off? No other control board or ICM lights come on. 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. You are pressing your Pentair Mastertemp 400 heater Pool and Spa button. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. 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. Defective Control Panel 11. 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. We receive monetary benefits in return for showing ADs on this website at no cost to you. Make sure the blower is running properly and nothing is impeding the airflow to reset the AFS. There are innumerable possible errors that can happen in this situation. If the automatic gas shutoff switch has tripped, you need to reset it. Fill a jar halfway with 130F water. I dont see my trouble addressed. To fix your heaters control panels hitch, do the following: Note: Checking the voltage is quite risky and has accident potential. Faulty Temperature Sensor 9. Then, replace the faulty heater part or parts. First, test the terminal boards fuse to ensure your heaters continuity. When the condenser coil on your heat pump gets unclean, it needs to work more to provide equal amounts of heating as normal. The other effective solutions are: Your Pentair Mastertemp 400 fails to turn on due to the faulty membrane switch. Get your heater out of ignition lockout mode. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. 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. We have a new Pentair Mastertemp 400. Ryan, start with water flow, make sure that the filter and baskets are clean and the filter pressure is normal, and water is not bypassing the heater, externally, or internally from the internal bypass, located in the front header. Articles and resources for swimming pool owners and DIYers. Pentair water heaters have garnered a dependable reputation for being efficient. Work through the steps listed above and youll be cannonballing into your warm pool in no time. Thank you! Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. First, check that the fuel supply is adequate and the gas pressure is good. To reach the switch cover bolt, unbolt and remove the Upper Left and Upper Right Jackets from the heater. This problem has a very basic and straightforward fix. Maybe that is it? We have a Pentair 300 for both spa and pool heating. 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. Remove the old thermal governor and replace it with a new one. This issue should be checked ASAP. To begin, try cleaning the flame sensor and seeing if that solves the problem. Is this normal? There is no error code or red service heater light on. Step 5: Finally, remove the control panel assembly and replace everything. However, your heater will show the exhaust temp. Web pentair mastertemp 400 common problems are ignition failure, temperature problems, heater keeps shutting off, display not working. I run the heater and this time it did something different. It means your stack flue sensor has tripped. 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. Heat exchangers can corrode due to pinhole leaks on copper tubes, saltwater, lack of alkalinity, and low pH levels. Supercedes #42002-0052S. . Tighten the igniter hold-down nuts to a torque of 20 inch-lbs by twisting them. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. 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. 1st one is the initial issue. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. Replace with new igniter. ), Pentair MasterTemp 400 Ignition Lockout [7 Easy Fixes], 2. Simply unplug these and turn them off for the winter. It kept doing this several times and then sometimes the temp will start counting up rapidly and slowly counts down to the current temp and cycles again. COPYRIGHT 2023. Here are the video links. If your igniter doesn't spark, it is faulty and needs replacement. 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. Product Details. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. 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. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. The time it takes a heat pump to heat a pool is determined by a few factors. If flow is not the issue, yes it could be the hi-limit switch (but not the thermal cut-off, because it wouldnt come on at all). 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. Step 5: Take the new AGS switch and reverse steps 1 through 4 to replace it. Free shipping for many products! Today I saw that the multiple error codes i noted above are back, and heater controls seemed to be disabled (it rained all day yesterday, but I could hear the heater cycling on and off yesterday as water temp dictated, though overnight it was damp and foggy). If the resistance is zero, the stack flue sensor needs to be replaced. Get a new igniter, the same as the previous igniters part number. They can cost you up to 50% of a new heater. Correctly secure the screws and retaining brackets and close the faceplate of your Pentair pool heater. Installing a pool heater is not simple, but is done DIY all the time. Faulty Igniter Igniter Replacement Instructions 2. 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. Other reasons why the heater is not turning on include: Faulty igniter The defective ignition control module Bad control fuse Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. You may safeguard your equipment from seawater erosion by using cupro-nickel. Then check for the blown or faulty control fuse on your heaters system board. If the filter isnt the issue, a faulty safety switch is next to check. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. 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. Wet Heater 6. 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]. It does heat the spa about 1 degree every cycle. Also, the sparking igniters working condition becomes vulnerable. Even if your Pentair Masteramp heaters terminal board gets power, the heater wont turn on, which means the faulty fuse is creating an issue. Check for wet or damaged igniter with low resistance to ground. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. Clean up all the flue sensor orifices to ensure there is no grime on them. Your heater stops working or blowing when a lower volt or no volt comes to the control panel out of the transformer. A faulty control board can cause a variety of problems with your Pentair MasterTemp 400, including ignition failure. This is accessed thru the end cap, two bolts on the side of the header. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. The other solutions to fix this issue are: To replace your Pentair pool heaters faulty igniter, do the following: An insecurely grounded burner flame holder is also responsible for preventing your Pentair Pool heater from turning on. This kind of damage can be very costly. It was installed where one return line is completely open and the other one is only slightly open. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Turn on your heater and set the desired temperature. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. The Service Heater light comes on when the heat shuts . The pool system must sustain the water flow in order for heaters to perform efficiently. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. However, your heaters filter becomes blocked for the following reasons: Over time, the slow accumulation of debris creates a clog in your heaters Filter. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. See if the igniter fires when you turn on the heater. Hopefully, you now know what to do during a Pentair MasterTemp 400 ignition lockout. The igniter can be found close to the top of the combustion chamber. Step 2: If the heater is below the pools water level, close the isolation valves to prevent the pool from draining. Test your control board with a multimeter. Error Code E06: Stack Flue Sensor Is Shorted 3. Pentair MasterTemp 400 Flameholder Kit | 77707-0204. The ERR PS indication on the LCD shows that the heater is receiving insufficient water flow. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. There are some common temperature issues that users face. Step 1: Turn off the filter pump as well as the heaters electrical power. Remove the AGS Switch from the Manifold by unscrewing it. Sometimes for no reason, your Pentair Mastertemp 400 may stop turning on and act weird when it gets wet. Along with the fluctuation the heater cycles. I just didnt trust them anymore. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor . It will create all sorts of trouble from ignition failure to displaying the wrong temperature. Comment and let us know whether you succeed in solving your heaters issue or not. Replace in case necessary. Any help would be greatly appreciated. If you had a Hayward filter, and it broke,, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools. Maintenance goes a long way when it comes to heater shelf life. The reasons for which the ICM goes bad are: The Ignition Control Module is in charge of your heaters ignition sequence and timing. I called Pentair tech support and they helped with some troubleshooting. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Your heater light may be blinking because of a failed ICM. It can even be dangerous. 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. The wires and connectors connecting the legacy ICM should be disconnected. Also, at least once a year, you should disassemble and clean the D.E. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. How do you test a Pentair stack flue sensor? There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Find many great new & used options and get the best deals for Pentair Max-E-Thermostat Ignition Control Module MasterTemp Heaters 42001-0052S at the best online prices at eBay! The wiring diagram is given below for your reference. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. Hi Lance, those are good ideas, first lets think about flow rate. Save my name, email, and website in this browser for the next time I comment. Make sure your heaters ignition control module is getting sufficient power. Continue with Recommended Cookies. 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 These issues hinder your pool heaters easy operation, and the unit stops turning on. Manage Settings Low water flow is the cause of up to 70% of all My heater wont heat service calls. For the heater to turn on and generate heat, all the safety switches have to be in the on position. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. 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 Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. If it isnt, theres a problem with the module. Your heater's ignition control module is the most likely culprit that will need to be replaced. I have a MasterTemp 200. 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. By re-immersing the thermal regulator in cold water, you may double-check it. Remove the wiring connection. I have a Pentair 400 master temp. 400: 40 (152) 120 (454) . Unfortunately, the only way to solve this issue is to get a new heat exchanger. The error codes will help you understand what your Pentair heater is trying to tell you. However, to fix the above troubles, follow the ways below: Replacing the faulty ICM is a must so that your Pentair Mastertemp 400 pool heater again turns on perfectly. Check to see if anything is stuck on the stove. www.pentairpool.com. Heater Turns On Automatically 7. Troubleshooting Guides; Product Manuals; POPULAR . The Pool company said that it is probably condensation. Replace it. Condensation is normal when the water is cold. Membrane switchs damaged or faulty wiring. Still have the power light lit but no other lights are lit. Replace or Repair your Swimming Pool Filter? It sits in a pool shed, with decent, not great ventilation. Step 3: To test, look for resistance across the HSI scale. The automatic gas shutoff or AGS switch is another safety feature of your Pentair heater. The leak can be verified by you, if you lift the lid and inspect inside. Without a working control panel, your heater is no good. Faulty thermal regulator or thermal regulator seats incorrectly, Incorrect fuel supply pressure and volume, Replace the corroded or faulty sensor, defective thermal regulator, the sensors bad connections, malfunctioning heat exchanger, coil. Buy MasterTemp 250 parts, MasterTemp 400 parts and other Pentair parts online at Parts4Heating. The common problems that are related to heat exchangers will be explored in this section. 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 If the pump is running, its likely that the filter and/or skimmers need to be cleansed. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. 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. 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). To safeguard your heater from freezing temperatures, do two things. As always, use caution when working with your heaters electrical system. Now spray out or tap out your heaters filter. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. I think its a bit on the high side. After about 20 seconds, it tries to ignite. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. 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