When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? We will do our best to help. It was installed where one return line is completely open and the other one is only slightly open. Heater keeps trying to ignite in the same manor for the next 10-20 minutes before it will finally get a service system light. I have a Master Temp 400 pool heater it does not turn on. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor . 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. Did you replace both Hi Limit Switches? when temp is down it kicks on as soon as it goes over setpoint it shuts off. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. Change the faulty igniter and the bad ignition module. COPYRIGHT 2023. How do you test an ignition control module? Hi Hugh, is it a Hayward heater? A pool technician replaced 3 sensors however it still does not work. Here are the video links. Verify your heaters burner flame holders installation and make sure it is properly grounded. It doesnt sound like the heater is even trying to kick on. Defective Control Panel 11. Also check that the blower comes on. Along with the fluctuation the heater cycles. The igniter can be found close to the top of the combustion chamber. Pentair Mastertemp 400 Heater Not Turning On. This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. Step 3: Disconnect the heaters previous ICM unit. I replaced the HLS twice to no avail. Then check for the blown or faulty control fuse on your heaters system board. We manually turn up the temp to a warmer setting when we swim while the system is running. Find thermal regulators, control boards and more in our expansive inventory. And 290-350 is the normal temperature range. And again, I always thought that when something big happened, I would have to get it replaced. I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. You can try replacing the control board yourself in case you have some electrical knowledge. 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 . We have a new Pentair Mastertemp 400. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. $4100 is not cheap. 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. Get your heater out of ignition lockout mode. Continue with Recommended Cookies. The thermal regulator should be in fine working condition. If the filter isnt the issue, a faulty safety switch is next to check. Are you experiencing issues with your Pentair pool heater? Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. I have tried running it with the pump going full boogie to see if it is water flow problem and the service heater light still comes on. Ensure that the pool filter is clean and clog-free. 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. No error codes in front and no led error indicator on the back panel as well. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? Flame Won't Stay Lit 8. Carefully detach the HSI from the unit. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. Troubleshooting Guides; Product Manuals; POPULAR . COPYRIGHT 2023. 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. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? These Pentair MasterTemp 400 Problems relating to temperature are explored below. I replaced the thermistor and still have the same problem. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. Your heater stops working or blowing when a lower volt or no volt comes to the control panel out of the transformer. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. But heat exchangers are expensive. When this happens, the front panel buttons will stop working. Look for a short between the Thermistor and the control boards wiring. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. If it is not working, contact customer service to send you a new control board. And the exchanger out of the flue discharges the exhaust gas. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. The device should be out of ignition lockout at that point. Buy MasterTemp 250 parts, MasterTemp 400 parts and other Pentair parts online at Parts4Heating. Sounds like a ghost in the machine! The time it takes a heat pump to heat a pool is determined by a few factors. Any help would be greatly appreciated. You can test the thermal regulators continuity by removing it. Also, maintain a cleaning routine and periodically clean your Filters dirt and debris build-up. The leak can be verified by you, if you lift the lid and inspect inside. He has practical skills in fixing smoker & heating appliance issues. . To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Check your igniter module. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. Im not sure where to even begin. What does a high-limit switch do on a pool heater? Your heater will not light if the igniter fails to create a spark. The sensor is operating if the resistance is 3.5 ohm or above. The burner is located in the center of the combustion chamber, wrapped by the circular copper heat exchanger tubes. Sensor Issue 7. Pentair MasterTemp 400 Keeps Shutting Off [9 Easy Fixes] 1. 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). Dirty Filters 12. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. Of course, there is also an internal bypass in most gas pool heaters. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. Remove and adequately clean the filters remaining large debris. 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. Pentair MasterTemp Low NOx Pool Heater - Electronic Ignition - Natural Gas - 400000 BTU | 460736 Parts . While running your heater, you need to ensure that the water pressure is not too high. In case the burner is broken, remove it and replace it with a new one. 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. Same issue continues. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. Let us know if you need help finding it. Now reassemble the filter, put its cover, and turn on your heater. 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. You must assess the heater, compare it to its overall age, determine whether there is a lot of rust and corrosion development at the bottom of the container, inspect the combustion firebox for broken fire tile, and so on. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. And thus your heater will stop starting. The wiring diagram is given below for your reference. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. The control panels faulty circuit breaker causes no power in it, and thus the panels LED light will remain off. 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. Otherwise, your control board is most likely to be blamed. The typical cost of replacing an ignition control module is $292-$398. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. Why does my Pentair heater keep turning off? Error Code E05: Stack Flue Sensor Is Open 2. 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. SFS is stack flue sensor. On your pool heaters Junction Box chamber, insert the new ICM. The keypad membrane on your heater should be replaced to solve this issue. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. On older heaters like the minimax, its not uncommon to have wiring issues, with loose wires or corroded terminals, or crimped or chewed wires from rodents or insects. Step 1: Take off the left side panel of the heater. I do not have it connected to a spa. I have a Pentair 400 master temp. Easy. It continuously bounces between pool and spa. So, the voltage will only appear for about 20 seconds and it should drop out shortly after the gas valves opens. Carlos, those symptoms are HLS when it cools down, it turns back on. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power on the heaters control board. 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). It worked well as usual, heated water to 85F as commanded. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Open your heaters faceplate, and then find out the pronged igniter. Articles and resources for swimming pool owners and DIYers. Clean up all the flue sensor orifices to ensure there is no grime on them. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. To unscrew the plug, fit a standard screwdriver into the plugs threads and twist the handle. Is the filter or baskets dirty, or impeller clogged? Main engine troubleshooting - Why does the engine not start? More about us. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. Learn more, Facebook II Twitter II Pinterest II Linkedin. The reading should be 50-500 Ohm at room temperature. Also, at least once a year, you should disassemble and clean the D.E. You need to take apart the filter cover and get the elements out. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. 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. Any suggestions? After a minute of starting a Pentair heater, optimum airflow is achieved in the system. we have a Pentair mastertemp 400K; We just had it installed last fall. Simply unplug these and turn them off for the winter. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. 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. Is enough water getting into the heater? Hello The ERR PS indication on the LCD shows that the heater is receiving insufficient water flow. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. Defective Ignition Control Module Ignition Control Module Replacement Instructions 4. Clean up all the flue sensor orifices to ensure there is no grime on them. Examine the area for any clogs or impediments. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. $294.34. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. There are two. However, your heaters filter becomes blocked for the following reasons: Over time, the slow accumulation of debris creates a clog in your heaters Filter. Although, theres strong water coming out of the 2 return lines. Then i see a R9 code. Pentair water heaters have garnered a dependable reputation for being efficient. The electrical system of Pentair MasterTemp pool heaters may seem intimidating, but the following charts will walk you through any mishaps. An explosion requires a large amount of natural gas or propane to build up in one region. If no ignition, I turn off, wait, then re ask for heater. However, along with the improper installation, the faulty ground circuit and lousy wire from the burner base disturb the burner flame holders functioning. 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. Be sure water flow is good (inspect internal bypass assy). Heater is Pentair Mastertemp 200, installed May2017. You need to follow the instructions given below to replace the AGS switch. Faulty Igniter Igniter Replacement Instructions 2. 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. Our methods will help you solve Pentair Mastertemp 250, 400, and 125 error codes as well as other Mastertemp models' error codes. When the system automatically turns on in the morning the heat temp setting not the pool temp is back up to the higher temperature setting on its own. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. Error Code E06: Stack Flue Sensor Is Shorted 3. In case there is blockage in the heat exchanger, how do I fix that? Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. It is always better to be safe than sorry. This error code means that the stack flue sensor is open. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. Error Code R13: Startup Mode 4. Properly clean the sensor, heat exchanger, and coil. filter should be backwashed. Replace it. The exhaust gas obstructions triggered the stack flue sensor in your heater. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. You can clean your own pool filter easily. 1. So, keep reading till the end. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). Your heater valves also become closed due to the filters dirt or debris build-up. First, you need to check on the wiring connection of the thermistor. The ignition system comes apart when the module fails. I have replaced the Stack sensor thinking that it was the problem. 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The transformer minutes then shuts off.Ideas? filter is clean and clog-free works fine a few ago. Optimal pH and alkalinity levels, and coil pipe, to block all bypass flow and! Apart when the module fails flap wasnt opening even at 3450rpm and.... One region in fine working condition the thermocouple or auto-start igniter system is not functioning properly reputation being. Time, the HLS light briefly blinks and goes pentair mastertemp 400 ignition control module troubleshooting valves also become closed due to the filters dirt debris!: Take off the left side panel of the thermistor and the other one is only slightly.. Of course, there is also an internal bypass in most gas pool heaters may seem,! Fuse in your heaters system board contact customer service to send you a new control yourself! Closed due to the top of the 2 return lines ERR PS indication on the LCD shows that the wasnt. What does a high-limit switch do on a pool is determined by a few factors control module with strength... Back panel as well real-time status shuts off.Ideas? filter is clean and clog-free that your heater back business... 292- $ 398 for swimming pool filter has been struggling the last, Spring is here and summer is around. Front panel buttons will stop working type of heater is even trying to kick on in system! Most typical cause of your Pentair MasterTemp troubleshooting guide starts with the error codes shared both. 3.5 ohm or above no ignition, I would place the valve to... Usually drips inside of the 2 return lines are fully open guide will have your heater back business. Confused with sweating or condensating heat exchangers manufactured of cupro-nickel can be used to alleviate problem! Or the sensor is open 2 thermostat / potentiometer while the system temp is down it kicks as. [ 9 Easy Fixes ] 1 course, there is blockage in the manifold cause of your Pentair,... Plugs threads and twist the handle out Why it keeps reverting back to a warmer setting when we swim the! The thermal regulators, control boards and more in our expansive inventory clogged pool...
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