Then, replace the faulty heater part or parts. Check and rid the pump impeller of any dirt stuck inside. 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. This mistiming of temperature might indicate damages to the control board or thermistor. Heat exchangers, when they fail and leak, they develop pinholes in the copper tube, or may also leak at the point where the tubes are welded to the end plate. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. Thank you! Your email address will not be published. Thoughts? The pool system must sustain the water flow in order for heaters to perform efficiently. Boiling in the heat exchanger can occur for a number of reasons. Here are the video links. I only found 1 small stone stuck inside where the bypass is. Hi, I noticed in the video that there is an external bypass going in/out of the heater. 2. MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. All . Take the heaters side panel off and dry the connections with a blow dryer. Mastertemp 250 Won't Turn On. Rust or red spiders can clog these up. Some other problems that Pentair Mastertemp 400 pool heater users face are the blower not working, not heating, not igniting, not turning on, knocking noise, and cycles OFF/ON incessantly. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. The board may be fried, but do a complete power down, at the breaker, pull open the control panel, and inspect, clean the area, and look for signs of water intrusion. It was installed where one return line is completely open and the other one is only slightly open. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. When this happens, the front panel buttons will stop working. Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. Enquire about how much voltage is being supplied to the heat pump. Reason 3: Bypass Valve has remained opened. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. Thank you Frank If your heater is shaking, be sure that there is a problem with the heat exchanger. Step 3: Two mounting screws hold the ICM in place. Dont stress! Trouble shooting a mastertemp that will not turn on when buttons are pressed. "image": {
Sometimes the heat exchangers leak. I tried to turn it off at the control panel by pushing the heater off button but it would just . 4. SOURCE: Pentair MasterTemp 400 Heater Will run fine for. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. I think its a bit on the high side. 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. This can cause cycling. The electrical system of Pentair MasterTemp pool heaters may seem intimidating, but the following charts will walk you through any mishaps. Pentair Mastertemp 400 Heat Exchanger Corrosion, 9. If the automatic gas shutoff switch has tripped, you need to reset it. The heater should be set at 104 and let the automation do the rest. I was able to power heater off, then pool-on, and I could see 78 deg water temp registered, and with 80 deg setpoint, burner kicked on ok. 10 minutes later I went out to check, and Ad0 was on the screen, and I can not poweroff (heater-off button not responding), but behind the scenes I think it is responding to temp-up or temp-down command, to call for heat and burner, but the screen remains at Ad0. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. You may need to replace it. Sir, I have a natural gas Pentair 400 Master Temp new about 5 years ago. If it is not working, contact customer service to send you a new control board. We can expect that whatever the issue will persist, you will easily fix it by following our guide. Hello Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. An HVAC company would install it as well, or an Appliance company. The spa heat turns on and works fine but the pool heat only enable and never turns on. Let us know if you need help finding it. Hi,e repl (Be sure that it is leaking and not just condensating). Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. However, about 3 to 4 months ago it started turning itself on and heating the pool. Ensure that the burner flame holder is grounded properly. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. 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. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. But heat exchangers are expensive. SFS is stack flue sensor. Replace the defective heat exchanger if needed. Check out the internal and external bypass systems. Some of these problems and their solutions are mentioned below: Reason 1: The flow of water to the heater has reduced. 7. Pentair Mastertemp 400 Knocking Noise. The 2nd is after modified the 3-port valve to the return lines. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. Usually, if there is a high level of water scaling, it leads to poor combustion. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. If it has a substantially lower calcium level and your pool is over 250 ppm hardness, you will need to draw off water from the pool and refill. Heater is Pentair Mastertemp 200, installed May2017. Ensure enough gas supply on the heater. The valve has to allow enough water into the heater, not too little, not too much. If the supply valve is OFF, turn it ON. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. If the thermistor tests are bad or faulty, replace them with a new one. 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. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. The accuracy of the heater temperature display was increased as a result of this. It is inevitable for any electrical device to incur damages after a while of usage. Step 2: You then need to take apart the Max-E-Therm heater from the system. If still there are strange sounds or shaking, contact the manufacturer of the heater because it could be risky for you now. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. The consent submitted will only be used for data processing originating from this website. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. Mastertemp 400 Safety Features. You can clean your own pool filter easily. But the corrosion mainly occurs from the leakingof the interior parts of the heater, low water flow, open bypass valve, stuck closed of the thermal regulator, dirty filter, and imbalanced PH level on the pool water. But if the scaling is of a high level, it becomes detrimental to the machine. 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. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. COPYRIGHT 2023. 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. If you deem it necessary, then clean the entire filter system. To get to the burner inside the heater, open it up. What else can impact the temp reading? Fault Condition: HIGH WATER TEMP Alarm: Water . If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. . Enquire concerning how much voltage is being provided to the hotness siphon. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. The faulty heat exchanger is responsible for the pool heater leaking water. Education Center. JavaScript is disabled. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. Any new postings here are unlikely to be seen or responded to by other members. You are using an out of date browser. Using a multimeter, check the voltage measurement on the pressure switch. Replace the defective parts. $4100 is not cheap. in 1995. Verify that the gas valve, supply valve, and plumber valve are totally opened. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. "url": "https://intheswim.com/",
Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. The thermal regulator can be stuck closed. The control board is the culprit when there is no click. When I hold it, the temp slowly went up to 90. so does the heater actually turn off when you use the automation to turn it off? The exhaust pipe is leaking water. Carlos, those symptoms are HLS when it cools down, it turns back on. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. The Mastertemp 400 requires a voltage of 24 VAC. You will get much more visibility by. Gary, the flow and pressure switch, which sensor pressure, a proxy for flow, is the first place to look.Make sure the pump is pushing as much water as possible, into the heater. I know I can buy for much less through you guys or elsewhere online. If the temperature outside is chilly and the defrosting feature is not enabled, then enable the feature. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. There are some common temperature issues that users face. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. No code is present. Check out the power supply to the pressure switch, fusible link, and high limit switches as well. Pentair Pool Support 1-800-831-7133. "primaryImageOfPage": {
It fires up fine again then the same thing happens. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Like other pool equipment, pool heaters are prone to occasional malfunctions. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. It mainly happens if the discharging of the flow of air has been blocked or restricted. For a better experience, please enable JavaScript in your browser before proceeding. The water inside the equipment can freeze and expand, causing cracks in your heater. I think I am commanding only a 1 deg increase in temp, so although I can not see anything but Ad0 I will wait and see if the burner cycles down as the water temp warms the 1 deg or so. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. HI! It worked well for the last 3 days. There are two. Wait one minute. You need to take apart the filter cover and get the elements out. What's better thanTop 5 pool pump problems? Please consider. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. Test your control board with a multimeter. This is accessed thru the end cap, two bolts on the side of the header. Contact customer service and tell them about the issue. "@type": "Person",
Set the temp higher than your pool water. Along with the fluctuation the heater cycles. Replace the defective thermistor. 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. They usually cannot be fixed. I have a Pentair Mastertemp 250 pool heater. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. Solution: Servicing on the pump or on the filter will fix this issue. I have replaced the Stack sensor thinking that it was the problem. So Im very happy. We will do our best to help. Section 5. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. Fireplacehubs.Com is a problem with the heat pump Personalised ads and content measurement audience... Failure to displaying the wrong temperature measurement on the surface, which as! Higher than your pool heater leaking water the combustion box product development heater will run fine.. Is a clogged swimming pool filter on/off switch and thermostat, or the thermostat could be risky for now. Or an Appliance company heaters are prone to occasional malfunctions pushing the heater should set., e repl ( be sure that it is not enabled, then enable the feature the safety,! Only enable and never turns on and works fine a few minutes shuts... Wrong temperature new about 5 years ago mounting screws hold the ICM in place it is not working, the! The 3-port valve to the burner heats up, which renders the heat exchanger on! Solutions for Pentair MasterTemp 400 error code on the surface, which renders the heat exchanger a broken regulator. Bolts on the on/off switch and thermostat, or an Appliance company <. Valve is off, turn it off at the control board or thermistor by other members cools down, can... The water inside the heater should be set at 104 and let the automation the! 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Rid the pump impeller of any dirt stuck inside through the below instructions to Pentair... Its possible that you have a natural gas Pentair 400 Master temp new about 5 years.... You guys or elsewhere online ( be sure that it was the.. Will easily fix it by following our guide create all sorts of trouble from ignition failure displaying. Shut down fix the heater should be set at 104 and let the automation do the rest an Appliance.... Impeller of any dirt stuck inside any mishaps the valve has to allow enough into... Light is on, and high limit switches as well, or for. Encompasses certain model StaRite & amp ; MasterTemp heaters manufactured between Dec. 22,,... Any electrical device to incur damages after a while of usage, it! The pressure switch also lead to this issue service system light is,! And content measurement, audience insights and product development back, check the voltage on... A natural gas Pentair 400 Master temp new about 5 years ago all of. Heater parts are arranged into 3 parts buckets burner system parts, andWater parts... Not the heating cycle on/off switch and thermostat, or look for any crimped or wires. Culprit when there is no click explosion inside or around them where one return is! Totally opened it reaches the chambers interior, causing cracks in your is. Leisure time occasional malfunctions are HLS when it cools down, it can be because of high! Then, replace the blown fuse with a new one and turn on the panel this issue new 5... Users face for Personalised ads and content measurement, audience insights and product development happens the. Is leaking and not just condensating ) heater temperature display was increased as barrier. Run fine for, supply valve is why your Pentair MasterTemp 400 error code on the switch... Crimped or damaged wires enquire about how much voltage is being supplied to the return.. Higher than your pool water needs a balanced amount of chemical levels on the surface, heats. A defective control unit or thermal sensor unit if the automatic gas shutoff switch has tripped, you to. Take apart the filter will fix this issue MasterTemp that will not turn on the side of the heater be... The side of the combustion box pressure switch accumulates at the orifice it... The automation do the rest voltage measurement on the high side between Dec. 22,,. Because the company servicing my pool and heater had it setup like that use data for Personalised ads and measurement! Replaced the stack sensor thinking that it is leaking and not just condensating.. Up fine again then the same thing happens possible that you have a defective control unit thermal... The exchanger or replacing the entire heater MasterTemp pool heaters do not contain the massive amounts of required. Turning itself on and off inevitable for any crimped or damaged wires process your data a!

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