Pentair Mastertemp 400 Low Water Circulation, 6. 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. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. Ensure that the control board is dry. Examine the area for any clogs or impediments. UPDATE. To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. The Thermal Governor has become jammed and is unable to open. Solution: Servicing on the pump or on the filter will fix this issue. I only own a pool. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. The heater does not ignite. Along with that, check the water flow to the heater. 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. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. Your email address will not be published. It has a big role in controlling the heater operation. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. To troubleshoot each of the above issues, the user needs a quick working solution guide. . },
It does heat the spa about 1 degree every cycle. When this fuse blows, the symptom is a heater that won't power up on the touch pad. And if the heayer shuts off, the gas valve is ok. Then check the control board & fix it. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Use a heat exchanger made of cupro-nickel to resist corrosion. The MasterTemp has a max setting of 104. The LED on the back panel indicated HLS. The PS is red, and led6 is red. Close the external bypass if open. Sounds like a ghost in the machine! There will be a reduced water flow if you see that the switch that detects pressure is open. Looking like might be bad control board? Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. Safety Controls. Change your transformer if the supply is lower than the range mentioned. Check out the pressure sensor, thermal regulator, or high limit switch. Hello , This is an inactive thread. (Be sure that it is leaking and not just condensating). Replace it. First, power cycle the heater to erase all the unwanted factors. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. Required fields are marked *. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. "datePublished": "1/8/2019",
Now check out the heat exchanger as well. Otherwise, your control board is most likely to be blamed. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. Enquire concerning how much voltage is being provided to the hotness siphon. Please consider. 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. We are always ready for your assistance. 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). 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. Not only for Pentair, but it also happens to other brands too. Replace all the defective ones. },
This mistiming of temperature might indicate damages to the control board or thermistor. If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. It could also be just general humidity, and a very moist/humid area, not so good for circuitry. in 1995. Ensure the correct temperature of the thermostat. We have a Pentair 300 for both spa and pool heating. The Mastertemp 400 requires a voltage of 24 VAC. Replace the bad ones. Any new postings here are unlikely to be seen or responded to by other members. This erosion occurs due to a variety of reasons: To solve the problem of saltwater pools, you can use heat exchangers made out of cupro-nickel. mike61953. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Product Registration. Learn more about pool care and repair. when temp is down it kicks on as soon as it goes over setpoint it shuts off. 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. Keep in mind, you have two sensors. Find a Dealer. All you have to do now is double-check the burner. Wash them out very carefully with a hose. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. Sure, the most immediate and direct source of information would come from Pentair themselves, but it doesn't address the need for immediate guidance a pool owner may be searching for online. Use this resistor to test the thermistor. What else can impact the temp reading? "keywords": "",
So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. This can cause cycling. Contractor's Assistant: . To Turn off Gas to Appliance. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. Articles and resources for swimming pool owners and DIYers. I have a Master Temp 400 pool heater it does not turn on. Any help would be greatly appreciated. After about 20 more seconds the heater light goes out . The Pool company said that it is probably condensation. COPYRIGHT 2023. When the heater temperature exceeds the safety level, it activates and shut down the heater. The Mastertemp 400 requires a voltage of 24 VAC. 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. Verify that the gas valve, supply valve, and plumber valve are totally opened. filter should be backwashed. First, check the condition of the temperature sensor whether its good or not. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. 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. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. Ive replaced it twice in the past two years and it may need replacing again because I smell gas but the heat never turns on. Take a closer look at where the water originates. Your email address will not be published. "@type": "Organization",
So you may be better off buying a new heater entirely instead of replacing the heat exchanger. 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. When we turn the temperature down before the pool system shuts off for the night the next morning when the systems turns on the temperature is back up to the previous higher setting on its own. Check out the power of the transformer whether its all good or not. Step 2: Disconnect the system from the Max-E-Therm heater. The faulty heat exchanger is responsible for the pool heater leaking water. Replace if you find any chemical or sanitizer damage there. Heater will not start. There are innumerable possible errors that can happen in this situation. This issue should be checked ASAP. 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). The mastertemp display doesn't light up when controlled remotely. Hello If the filter isnt the issue, a faulty safety switch is next to check. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. This problem can be resolved by servicing the pump or filter. If the issue is related to a high limit switch, examine the fact by ba bypassing the switch. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. Kindly help. Top 3 pool pump problems, of course! Do any diagnostic LED’s on back of board (AGS, AFS, SFS, HLS, PS . "height": "219",
See if the igniter fires when you turn on the heater. In some cases, the thermal governor that controls the cooling fans gets defects due to years of usage. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. Copyright 2022 In The Swim. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Reduce strength of exhaust vent and/or number of elbows. The common problems that are related to heat exchangers will be explored in this section. Education Center. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. My Pentair 250 heater will not stay on the pool setting. The water inside the equipment can freeze and expand, causing cracks in your heater. Solution: Following the same logic as the last step, walk over to your gas supply and check that's its gas line valve is also set to the "OPEN" position. There should have at least 35 GPM (gallons per minute). It was installed about 3 years ago and there haven't been any problems. My MasterTemp 400 fails to work intermittently. There are two. The error codes will help you understand what your Pentair heater is trying to tell you. This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. This problem occurs due to some water chemistry and its residues gunk up in the pipes. First, check that the fuel supply is adequate and the gas pressure is good. 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. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. Thanks for your help! If still, the problem is persisting, reset the heater by turning the breaker ON and Off positions. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. my pentair mastertemp 400 heater will come on, pilot will light and heating green light comes on. Replace the bad igniter and defective flame sensor from your heater. Water Flow Problem. You are using an out of date browser. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. To get to the burner inside the heater, open it up. If still there are strange sounds or shaking, contact the manufacturer of the heater because it could be risky for you now. Test your fill water too. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. This error code means that the stack flue sensor is open. This could lead to leakage. 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. 3. So, was going to need to be replaced at some point. "caption": "In The Swim Blog"
If you deem it necessary, then clean the entire filter system. Still have the power light lit but no other lights are lit. Check and rid the pump impeller of any dirt stuck inside. Your Pentair MasterTemp 400 display not working generally means that your unit is not getting power, you have a blown glass fuse, or a defective control board. Its a fun combination of plumbing, wiring and gas. Something mild to someone might be too hot or too cold for another. This is the best possible solution to this problem. It sits in a pool shed, with decent, not great ventilation. "width": "611",
Learn More. Mastertemp 250 Won't Turn On. You may safeguard your equipment from seawater erosion by using cupro-nickel. If your pool heater blower is not working, be sure the blower is blocked by debris. Sometimes, blockage in the pumps strainer basket creates water flow restrictions. As your unit is a new one, to fix your pool heater issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer. Pentair Pool Support 1-800-831-7133. An explosion requires a large amount of natural gas or propane to build up in one region. Solution: Alter the chemistry of the water and reach an equilibrium. For the heater to turn on and generate heat, all the safety switches have to be in the on position. "caption": "In The Swim Blog"
Sometimes users have the experience of a low heating problem, or the heater is totally out of its duty. How does the thermistor work on the pool heater? "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
So I thought that was causing the problem. Table of Contents. Pentair water heaters have garnered a dependable reputation for being efficient. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. In case there is blockage in the heat exchanger, how do I fix that? Check for stuck objects, such as worms, dirt, lint traps, etc. 4. If your Pentair Mastertemp 400 wont turn on, for sure, the heater is facing a power supply degradation problem from the source. . I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. Pentair Mastertemp 400 Knocking Noise. Is the filter or baskets dirty, or impeller clogged? Manage Settings The Mastertemp 400 requires a voltage of 24 VAC. Clean out the filter first to resolve the low water flow issue. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. No code is present. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . Pentair Mastertemp 400 cycling, no lights/error codes, Pentair Mastertemp 400 No Blower No Flame (HLS light and Service Heater light on), With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. We are a registered 501(c)3 non-profit that is funded by user donations. Traveler, food lover, interior designer, and blogger. The breaker is tripped as a result of this. I think its a bit on the high side. Make sure that the air coil is being sprinkled upon during cooling. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. The correct temperature of water depends on the user. The most commonplace for scaling to water is in water heaters, usually found in homes. Wait one minute. Recalled Pool Heater Model Numbers. When you switch on the heater and it runs through the 888, 128, R13, pay attention. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. Verify pressure tap between gas valve and blower inlet. Remove the hard obstacle near the sensor. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Any suggestions? If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the source. The thermal regulator should be in fine working condition. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. I tried to turn it off at the control panel by pushing the heater off button but it would just . 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