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. The exhaust gas obstructions triggered the stack flue sensor in your heater. ), Pentair MasterTemp 400 Ignition Lockout [7 Easy Fixes], 2. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. B13,B14,B16,B17,B18,B19. Save my name, email, and website in this browser for the next time I comment. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. 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. If you had a Hayward filter, and it broke,, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools. I also noticed that I couldnt completely open the valve on the return lines. 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. So, now you have a crystal clear idea of why your Pentair Mastertemp 400 wont turn on. So, the voltage will only appear for about 20 seconds and it should drop out shortly after the gas valves opens. Boiling in the heat exchanger can occur for a number of reasons. Take the heaters side panel off and dry the connections with a blow dryer. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. How much does an ignition control module cost? http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. To Replace or Repair your pool filter - that is the first question. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. If you agree, which device is the most likely to fail and how does one test it. We have a Pentair pool heater that all the sudden kicked off Saturday. 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. Any suggestions? Verify pressure tap between gas valve and blower inlet. Look for any evidence of cracking on the flame sensor porcelain. This could be a sign of a faulty flame sensor. Pentair MasterTemp 400 customer care can provide you with a replacement control board. If needed. Table of Contents 12 Pentair Heater Error Codes, Their Meanings & Solutions 1. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. Step 2: Disconnect the system from the Max-E-Therm heater. 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. This issue should be checked ASAP. Is enough water getting into the heater? I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. What does E05 mean on the Pentair Pool heater? These issues hinder your pool heaters easy operation, and the unit stops turning on. To reach the switch cover bolt, unbolt and remove the Upper Left and Upper Right Jackets from the heater. A defective thermistor can cause an ignition lockout. You are pressing your Pentair Mastertemp 400 heater Pool and Spa button. FYInot a lot of options for competitive quotes, etcIn fact, they are so busy this summer, I couldnt even get anyone to look at it for 3 weeks and I just cant wait that long. Maybe that is it? Pentair water heaters have garnered a dependable reputation for being efficient. Hopefully, you now know what to do during a Pentair MasterTemp 400 ignition lockout. Manage Settings The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. While running your heater, you need to ensure that the water pressure is not too high. 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. . William is the founder of Fireplacehubs.com. Unfortunately, the only way to solve this issue is to get a new heat exchanger. Other reasons why the heater is not turning on include: Faulty igniter The defective ignition control module Bad control fuse Sensor Issue 7. I have a Pentair 400 master temp. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. Size: 1- (Pack) 1- (Pack) 2- (Pack) 3- (Pack) 4- (Pack) 5- (Pack) 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. It means your stack flue sensor has tripped. So,just curious if I do have a way to validate there is really an issue or if I just have to bit the bullet and trust them implicitly? The leak can be verified by you, if you lift the lid and inspect inside. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. Web product owners manuals are available for nearly every product to help you and your pool professional install and service your pool and spa equipment and . Also, your heater displays the error code ERR IGN. Thank you Frank Look at the blower if you hear a clicking sound. Wash them out very carefully with a hose. Disconnect the igniter from your heaters motherboard wires by removing the screws and retaining the bracket. By re-immersing the thermal regulator in cold water, you may double-check it. Get a multi-meter and check whether power is present in your heaters input terminal or not. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. 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. 1st one is the initial issue. So regularly clean your pool filter to avoid a clog. Dont stress! To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. Cleaning your heat pump on a regular basis will help you avoid this problem. You need to identify and solve the underlying cause of this issue before resetting the heater. 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. All Right Reserved by FIREPLACEHUBS. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. We have a Pentair minimax 100 Dsi. Be sure water flow is good (inspect internal bypass assy). 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). Error Code R13: Startup Mode 4. Pentair MasterTemp 400 Flameholder Kit | 77707-0204. 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. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. It worked well as usual, heated water to 85F as commanded. Remove the old thermal governor and replace it with a new one. Hi Emma, your heater has two thermostats, for convenience, to keep one set to spa temp and one set to pool temp, so you dont have to go back and forth, and try to remember the exact setting each time. Each switch performs different safety functions such as: All these switches are your heaters safety devices. Heater will not turn off and a 5F code with a flashing 1. Wet Heater 6. Tripping Safety Switches Looking like might be bad control board? It worked well for the last 3 days. It calls for heat, heat starts for maybe 5-10 seconds, then stops, temp raises rapidly to 124 then slowly back down to 75 and cycles again doing the same thing over and over again. Free shipping for many products! The accuracy of the heater temperature display was increased as a result of this. Replace the defective parts. This problem needs to be fixed ASAP. 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. Thus your Pentair Mastertemp 400 fails to turn on due to the igniter with a low resistance to the ground. Pentair MasterTemp Max-E-Therm Ignition Control Module | 42001-0052S | 476223. A sparking igniter is in good working condition. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. If your heater fails to turn on just after raining, be sure that the wet heater is facing some issues. Alerts pushed to a smart device to keep you updated on heater performance and real-time status. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf. Incorrect Wiring 3. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Verify that the igniter is dry and not damaged physically. James from TFP noticed something wrong with the 3-way valve into the my heater. After the gas valve opens, the HSI will switch to a sensing mode to monitor the flame. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. Flame Won't Stay Lit 8. Is the filter or baskets dirty, or impeller clogged? Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. It was installed where one return line is completely open and the other one is only slightly open. And then replace the fuse or the entire system board. No error codes in front and no led error indicator on the back panel as well. The device should be out of ignition lockout at that point. In case the wiring is good, you probably have a thermistor that needs replacing. I shouldve tried harder to learn how the pool works. In this section, we will explore the causes behind ignition lockout in more depth as well as for instructions on what to do during an ignition lockout on a pool heater. A defective AGS switch can cause ignition failure. Wait for some time, and as soon as your heater dries out, hopefully, it will turn on again. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. Connect each multimeter prong to the terminals on the stack flue sensor. So you could save $1000 by buying online and having a company install. Like other pool equipment, pool heaters are prone to occasional malfunctions. Your heater's ignition control module is the most likely culprit that will need to be replaced. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. Malfunctioning Blower 9. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Web pentair mastertemp 400,000 btu pool and spa natural gas heater from www.primepoolmarket.com. Clogged Pool Filter 8. If not, replace it. Step 4: Insert the new ICM into the Junction Box chamber of the heater. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. In about 20 seconds, the gas valve opens and ignition should occur. Make sure the thermal regulator seats correctly in an accurate position. In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. If the automatic gas shutoff switch has tripped, you need to reset it. Pentair Mastertemp 400 Wont Turn On [10 Troubleshooting Tips], 2. Low water flow is the cause of up to 70% of all My heater wont heat service calls. No code is present. Otherwise, the igniter is bad and you need to replace it. Dirty Filters 12. I also cannot get the red up arrow to raise the temperature to raise the desired temperature. Step 3: Disconnect the heater's previous ICM unit. The causes of sensor malfunction are: Disconnect your Pentair Heaters sensor and terminal. To safeguard your heater from freezing temperatures, do two things. Low Water Flow 10. Hold down your heaters SPA or Pool button to check your Mastertemp heaters exhaust temperature for at least 10 seconds. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. UPDATE. Step 1: Turn off the filter pump as well as the heaters electrical power. Still have the power light lit but no other lights are lit. Thank you for your time and response. Installing a pool heater is not simple, but is done DIY all the time. The ignition system comes apart when the module fails. COPYRIGHT 2023. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. Bought the house 2.5 years ago. I only found 1 small stone stuck inside where the bypass is. 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. You will need to reset your heater to get it out of the lockout. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. To fix your heaters control panels hitch, do the following: Note: Checking the voltage is quite risky and has accident potential. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. An example of data being processed may be a unique identifier stored in a cookie. Test your control board with a multimeter. 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. Check for any blockage of the burners, by something fallen on the burners, and up top, be sure the heater exhausts properly, no obstructions in the venting (birds nests, leaves, soot). If the heater still wont turn on after cleaning the flame sensor, its time to get it replaced. Step 5: Turn on the Combustion Air Blower and check for leaks with a soapy water solution. how to fix Pentair heater error codes problems. Also could possibly have circuit board problems. Fill a jar halfway with 130F water. How do you test a Pentair stack flue sensor? They can cost you up to 50% of a new heater. The sensor is operating if the resistance is 3.5 ohm or above. The Service Heater light comes on when the heat shuts . Sta-Rite 42001-0052S Ignition Control Module, Digital. You might also bring the heat exchanger in for maintenance. Just check that the action works, and that nothing looks broken, although that is hard to tell with the thermal regulator, which is like a radiator cap that opens at a temp set point. To get to the burner inside the heater, open it up. . Are you experiencing issues with your Pentair pool heater? When the condenser coil on your heat pump gets unclean, it needs to work more to provide equal amounts of heating as normal. The reading should be 50-500 Ohm at room temperature. 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. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. They have a have an SF code for Sensor Failure. Here are the video links. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. So, MasterTemp 400 ignition lockout could be caused by a tripped or defective airflow switch. The pump basket blockage or clogged filter causes water flow resistance. Learn more, Facebook II Twitter II Pinterest II Linkedin. Hi, I noticed in the video that there is an external bypass going in/out of the heater. This is accessed thru the end cap, two bolts on the side of the header. Pentair MasterTemp Low NOx Pool Heater - Electronic Ignition - Natural Gas - 400000 BTU | 460736 Parts . Unplug the AGS wires from the Switch. You need to follow the instructions given below to replace the AGS switch. 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. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. Switch and thermostat, or the entire system board drop out shortly after the gas valve blower... Power light lit but no other lights are lit heating issue is get. And website in this section, we will take a detailed pentair mastertemp 400 ignition control module troubleshooting into the Junction chamber... 6 years old heaters safety devices all sorts of trouble from ignition failure to displaying wrong... 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