"@type": "ImageObject", Reduce strength of exhaust vent and/or number of elbows. This residue is usually formed at the bottom. Are you experiencing issues with your Pentair pool heater? If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. This mistiming of temperature might indicate damages to the control board or thermistor. Already known as being dependable and efficient, MasterTemp now offers smart features and an optional energy-saving Smart Bypass Valve Kit to help you ensure your pool is ready whenever you are. 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. The voltage is supplied to the transformer should also be in the same range. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. My MasterTemp 400 fails to work intermittently. It fires up fine again then the same thing happens. Use a heat exchanger made of cupro-nickel to resist corrosion. 4. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. If the automatic gas shutoff switch has tripped, you need to reset it. You may need to replace it. Solution: Servicing on the pump or on the filter will fix this issue. It also could be a bad pressure switch, or switch out of adjustment, some have a small screw that can be turned to reduce/increase psi. COPYRIGHT 2023. 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. Let us know if you need help finding it. Possible Cause: Pilot light isn't lit. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. 6. Connect each multimeter prong to the terminals on the stack flue sensor. Sounds like a ghost in the machine! The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. I only own a pool. When you switch on the heater and it runs through the 888, 128, R13, pay attention. UPDATE. Remove the old thermal governor and replace it with a new one. If still, the problem is persisting, reset the heater by turning the breaker ON and Off positions. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. "@type": "ImageObject", Hello The faulty heat exchanger is responsible for the pool heater leaking water. View online or download Pentair MasterTemp 400 Brochure. I have a Pentair Mastertemp 250 pool heater. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Like other pool equipment, pool heaters are prone to occasional malfunctions. { Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. You are welcome! 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 Troubleshooting [A Complete Guide], Richmond Electric Water Heater Troubleshooting [A Complete Guide], Richmond Gas Water Heater Troubleshooting [A Complete Guide], Richmond Water Heater Blinking Light Codes [Why+ How To Fix], Richmond Water Heater Gas Valve Problems [Why + How To Fix]. Voltage checks have the potential for a lot of danger. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Kindly help. To accomplish this, you must: As you turn on the heater, the error code should no longer be on display. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. The Mastertemp 400 requires a voltage of 24 VAC. Otherwise, it will be difficult to verify. Please help. Why is my Pentair pool heater not coming on? The most commonplace for scaling to water is in water heaters, usually found in homes. Hello , This is an inactive thread. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. Step 3: Two mounting screws hold the ICM in place. 3. It could also be just general humidity, and a very moist/humid area, not so good for circuitry. To safeguard your heater from freezing temperatures, do two things. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. 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. 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. It may not display this or other websites correctly. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. Replace if you find any chemical or sanitizer damage there. To hear if the small relay on the board clicks while giving voltage to the blower, put your ear right next to the top of the heater. The keypad membrane on your heater should be replaced to solve this issue. }, Ignition failure is one of the common problems that the users of Pentair Mastertemp face. "datePublished": "1/8/2019", After about 30-45 seconds, the heating green light goes off and it shows service heater and the panel Replace if there have any defects. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. 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. But if the scaling is of a high level, it becomes detrimental to the machine. Articles and resources for swimming pool owners and DIYers. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. Replace the defective parts. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. Adjust the chemical level of the pool water. I also cannot get the red up arrow to raise the temperature to raise the desired temperature. The solution to your heater issue is given in your previous comment. For a better experience, please enable JavaScript in your browser before proceeding. Not sure why a pool tech wouldn't replace the 2 wire remote . Dont ignore the strainer basket near the pump. You need to replace the corroded or damaged regulator. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. My Pentair 250 heater will not stay on the pool setting. You can install a bypass valve to regulate the required flow rate. 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). You will get much more visibility by. I shouldve tried harder to learn how the pool works. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. 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. Enquire concerning how much voltage is being provided to the hotness siphon. Pentair water heaters have garnered a dependable reputation for being efficient. A thermistor is mainly regarded as a temperature sensor. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Easy troubleshooting and repair. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. 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. Replace it if you find no voltage there. Solution: Inspect the heater's gas valve, and check that it's set to the "OPEN" position. The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. Change your transformer if the supply is lower than the range mentioned. POOL AND SPA HEATER (FOR OUTDOOR USE ONLY), Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages), Product HIN / Code Requirements / Safety Warning, Consumer Information and Safety Information, Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting, Indoor Venting-General Requirements Heater Clearances / Indoor Installation . The temperature should always be higher than the pool heater. You may need to replace it if you get it corroded. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Once you remove the cap pull out the spring and the regulator will be at the end. Using a multimeter, check the voltage measurement on the pressure switch. Normally you can smell a little gas when it kicks on but it does nothing. Be sure all connections are clean and tight. Maybe that is it? I sent the following on May 23, but received no reply/advice. Safe operation is assured through a series of features . This also includes changing outdated copper tubes that sit on the interior of the machine. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. We and our partners use cookies to Store and/or access information on a device. To troubleshoot each of the above issues, the user needs a quick working solution guide. The thermal regulator can be stuck closed. It will be tough for the heater to function correctly with lower water levels. They usually cannot be fixed. I had to turn off . Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. So I thought that was causing the problem. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. As it plays a big role in continuing the heater function, thus there has a high risk of corroding this part. The LED on the back panel indicated HLS. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful.