Read More. Is enough water getting into the heater? Im not sure where to even begin. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. Something mild to someone might be too hot or too cold for another. Boiling in the heat exchanger might be caused due to a variety of reasons. Sir, I have a natural gas Pentair 400 Master Temp new about 5 years ago. 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. Ensure that the transformer has at least 24 volts. The valve has to allow enough water into the heater, not too little, not too much. It worked well for the last 3 days. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. 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. It is old and a bit rusty and loud. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? Solution: Alter the chemistry of the water and reach an equilibrium. Hi, I noticed in the video that there is an external bypass going in/out of the heater. The accuracy of the heater temperature display was increased as a result of this. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. The thermister, sensors, and Board are working. Turn off the Pentair heater; . Did you replace both Hi Limit Switches? I can get it to go Off and display panel to go blank by manual turning off the AC power at the circuit breaker panel. Burner pulsates or surges, especially on ignition. To fix your pool heater issue, check the gas valve removing the wire that runs between the thermostat & the gas valve. This residue is usually formed at the bottom. 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. Required fields are marked *. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . This error code means that the stack flue sensor is open. When I hold it, the temp slowly went up to 90. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. A leaking heat exchanger is a serious situation. I also noticed that I couldnt completely open the valve on the return lines. Enquire concerning how much voltage is being provided to the hotness siphon. If the supply valve is OFF, turn it ON. Step 3: Two mounting screws hold the ICM in place. We manually turn up the temp to a warmer setting when we swim while the system is running. 3. The breaker is tripped as a result of this. 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. Change the waters chemicals to achieve equilibrium. You may need to replace it if you get it corroded. Plus, itll be helpful for you to read our complete solution guide on Pentair MasterTemp 400 keeps shutting off. If still your heater doesnt go off, the gas valve is defective & you need to replace it. Defective Keypad Membrane. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. Safe operation is assured through a series of features . I replaced the thermistor and still have the same problem. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. HI! Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. service system & service heater lights are off heater set p read more This problem occurs due to some water chemistry and its residues gunk up in the pipes. This could lead to leakage. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Product HIN / Code Requirements / Safety Warning. Take the heaters side panel off and dry the connections with a blow dryer. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. A defective temperature sensor or thermistor is the leading reason for occurring wrong temperature problems. Have a BRAND new Pentair Mastertemp 400. ******************************************************** Not sure why a pool tech wouldn't replace the 2 wire remote . Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. The heater should be set at 104 and let the automation do the rest. 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. You must log in or register to reply here. Glitches in the power supply are the root reason behind this. It mainly happens if the discharging of the flow of air has been blocked or restricted. Clean the water filter properly to prevent water flow restrictions. Check out the power of the transformer whether its all good or not. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. 13 years ago. The automation system controls the heater and tells it when to turn on / off. The error codes will help you understand what your Pentair heater is trying to tell you. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. For a better experience, please enable JavaScript in your browser before proceeding. If damaged, broken, or open, then replace it. Once set up, select the . 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). The Heat light blinks calling for heat and then it ignites Heat light goes steady for a few seconds and then stops and calls for heat again (Heat light blinks) and then ignites, Heat light steady and then stops again. Jeld-Wen Vs. Pella Windows: Which One Is Worthy For Your House? To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. 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. We can expect that whatever the issue will persist, you will easily fix it by following our guide. The Mastertemp 400 requires a voltage of 24 VAC. The manufacturing date, along with model number, can be found on the serial number sticker on the heater. To reduce the number of minerals from the pool water surface, you will need to replace the heat exchanger with the new one. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. 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. There is no error code or red service heater light on. 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. 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. I have a MasterTemp 200. If the resistance is zero, the stack flue sensor needs to be replaced. It is a sfs code, but with no e05 error code. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. If not, replace it. It could be plugged, or the bypass valves could be sticking. I just didnt trust them anymore. 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. The control board is the culprit when there is no click. What else can impact the temp reading? Ensure enough gas supply on the heater. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. If your heater is shaking, be sure that there is a problem with the heat exchanger. Make sure that the filter of the heater is cleaned as well. Heater will not start. Replace everything in its proper location. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. 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. Check and rid the pump impeller of any dirt stuck inside. "@type": "ImageObject",
I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. . After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. To safeguard your heater from freezing temperatures, do two things. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. You can clean your own pool filter easily. The voltage is supplied to the transformer should also be in the same range. 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. You may need to replace it. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. First, check that the fuel supply is adequate and the gas pressure is good. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. It does heat the spa about 1 degree every cycle. We and our partners use cookies to Store and/or access information on a device. The wiring diagram is given below for your reference. Might charge under $500 to install. So you could save $1000 by buying online and having a company install. "name": "In The Swim",
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