Clean up all the flue sensor orifices to ensure there is no grime on them. },
Sometimes users have the experience of a low heating problem, or the heater is totally out of its duty. Replace if you find any chemical or sanitizer damage there. 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. Thanks for your help. If the thermistor is in good condition, then replace the circuit board. The Pool company said that it is probably condensation. People often confuse or term this leakage as sweating. Unscrew them to take the ICM off the heater. Remove the old thermal governor and replace it with a new one. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. Step 3: Two mounting screws hold the ICM in place. "image": {
Smart connectivity via the Pentair Automation Systems enable you to manage pool . 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. But now, if you have any questions, leave a comment below. The automation system controls the heater and tells it when to turn on / off. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. Hi,e repl I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. Thank you! You can clean your own pool filter easily. Ascertain that the blower is securely fastened in its location. 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. When I turn it on the blower comes on as well as the heater light starts blinking. Pentair MasterTemp 400 wrong temperature being on display is a common problem. 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. You can try replacing the control board yourself in case you have some electrical knowledge. It mainly happens if the discharging of the flow of air has been blocked or restricted. Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. cause the heater's pressure switch to turn OFF. Pentair Mastertemp 400 common problems include displaying the wrong temperature, low water circulation, leaking water, water scaling, and corroded heat exchanger. Kindly help. Not sure why a pool tech wouldn't replace the 2 wire remote . After about 30-45 seconds, the heating green light goes off and it shows service heater and the panel There are certain effects of scaling, such as: Change the heat exchanger and get a new one. MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time. This issue should be checked ASAP. But when the amount exceeds the limit, the heater catches it as a problem. Problems and Corrective Action. It can even be dangerous. First, you need to check on the wiring connection of the thermistor. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. 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. Heater will Not Fire Troubleshooting. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. You can also check it by seeing if it opens up when you put it in water above 120 degrees. "@type": "ImageObject",
Test your control board with a multimeter. Voltage checks have the potential for a lot of danger. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. There are four of them. It sits in a pool shed, with decent, not great ventilation. "name": "In The Swim",
It could be plugged, or the bypass valves could be sticking. Maybe that is it? Hi Hugh, is it a Hayward heater? I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? Can you give some thought? I do not have it connected to a spa. "@context": "https://schema.org/",
4. The possibility of water chemistry issues like calcium buildup in the heat exchanger, low water flow, and faulty pressure switch can create strange sounds in your heater.To solve this sound issue, check through the below solutions. Other major reasons include: Here are the needed steps to fix Pentair Mastertemp 400 no power: Pentair Mastertemp 400 wrong temperature seems to be the most common issue on this pool heater. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. . 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. Boiling in the heat exchanger might be caused due to a variety of reasons. 4. Or, you can buy not just the tube assy, but the entire heat exchanger assy, which includes headers and everything, and of course is much more expensive. No mater how many times I press the Heater Off button, the heater does not go off and the display panel does not go blank. Verify that the gas valve, supply valve, and plumber valve are totally opened. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). 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. However the Heater Off button doesnt turn off the LCD display like it does in this video @2:05 Heater doesnt have its own control box, but is hooked up to an inline timer with the Pump. Turn off power to heater for about 5 seconds, and turn back on. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? Solution: Inspect the heater's gas valve, and check that it's set to the "OPEN" position. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? We have a Pentair minimax 100 Dsi. 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. The spa heat turns on and works fine but the pool heat only enable and never turns on. 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. It is also advised to change the entire system if required. 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. 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. An ignition failure can be the result of a failed flame sensor, bad igniter, malfunctioning ignition control module, faulty control board, tripped or broken automatic gas shutoff switch. 3. Now, check out the voltage supply to the control board. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. Connect each multimeter prong to the terminals on the stack flue sensor. If the filter isnt the issue, a faulty safety switch is next to check. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Replace everything in its proper location. I have a Pentair Mastertemp 250 pool heater. There are two. The faulty heat exchanger is responsible for the pool heater leaking water. Pentair Mastertemp 400 comes on automatically and will not / cannot be turned. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! Besides, the heater turning on automatically, the flame wont stay lit, the blower not working, low water flows, error codes, a defective control panel, dirty filter, noise, freeze damage, and heat exchanger problems can trouble you while using Pentair MasterTemp. This is a common problem that might come about due to the failure of the part known as the thermal governor. One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. I only found 1 small stone stuck inside where the bypass is. 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. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. The Mastertemp 400 requires a voltage of 24 VAC. "@type": "Organization",
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). COPYRIGHT 2023. Replace the defective one. The mastertemp display doesn't light up when controlled remotely. The Mastertemp 400 requires a voltage of 24 VAC. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. Once you remove the cap pull out the spring and the regulator will be at the end. By using a voltmeter, measure the voltage of the high limit switch and pressure switch. 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. Normally you can smell a little gas when it kicks on but it does nothing. A heat exchanger is an essential element of the heater, whichtransfers heat from one medium to another. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. Check out the thermal regulator as well. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. Advice? We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. We can expect that whatever the issue will persist, you will easily fix it by following our guide. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. Looking like might be bad control board? 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. Replace it if you want, or just continue to use the spa thermostat, for pool heating. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Call Us Nationwide: 1-800-741-9956. . Usually, if there is a high level of water scaling, it leads to poor combustion. . Ensure that the transformer has at least 24 volts. There is no error code or red service heater light on. Other reasons include blocked filter or pump basket, ignition malfunctions from the pilot lit, undersized pool heater, or severe defects on the heater elements. I think our heat exchanger corroded last summer. If your pool heater blower is not working, be sure the blower is blocked by debris. Replace the bad thermistor. Ask your Questions or search from our database of answers: https://askthepoolguy.com/questions/ask/ Make sure you Subscribe so you get your answer! This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. Could the problem be the regulator? "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
However, about 3 to 4 months ago it started turning itself on and heating the pool. The Mastertemp 400 requires a voltage of 24 VAC. Reason 3: Bypass Valve has remained opened. 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. 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. Pentair Mastertemp 400 Common Problems [11 Easy Solutions], 1. Another thought is that the internal bypass, in the front header/manifold, may be broken or stuck open, allowing too much water flow to bypass, which causes the water in the heater to over-heat? Replace the defective heat exchanger if needed. spa light is on. Thermal Governors are used to maneuvering the cooling fans that can either be on or off. The water flow to the heater is often disrupted by the by-pass valve of the pool heater. And if the heayer shuts off, the gas valve is ok. Then check the control board & fix it. Contact customer service and tell them about the issue. You could also take the heat exchanger for servicing. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. Thanks for the help. The LED on the back panel indicated HLS. I know I can buy for much less through you guys or elsewhere online. Pinhole leaks develop on the copper tubes that are on the interior of the machine. Wait one minute. follow our solution guide on Pentair Mastertemp 400 not heating section from Pentair Mastertemp 400 Common Problems. You will need to repair or replace damaged parts. 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. The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. Rust or red spiders can clog these up. Before all else, ensure a fluent power supply to the heater. View online or download Pentair MasterTemp 400 Brochure. In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. Without a working control panel, your heater is no good. This error code should not be shown on your Pentair heater at this point. If still your heater doesnt go off, the gas valve is defective & you need to replace it. Search. Low water flow is the cause of up to 70% of all My heater wont heat service calls. Replace the bad igniter and defective flame sensor from your heater. Clean up all the flue sensor orifices to ensure there is no grime on them. Adding MA is a normal and expected process to help keep it in check. I run the heater and this time it did something different. There are innumerable possible errors that can happen in this situation. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. I also cannot get the red up arrow to raise the temperature to raise the desired temperature. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? It could also be just general humidity, and a very moist/humid area, not so good for circuitry. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. 36. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. There might also be damages to the suction air leaks. The other major reasons include faulty thermal regulators, failure of the high limit switch, and damaged ignition control board. Outdoor Shelder, Horizontal Venting - Using Single-Wall Stainless Gas Vent, Connecting Single-Wall Stainless Steel Vent to the Heater, Horizontal or Vertical Venting Flexible Duct (Flex-Vent), Combustion Air Supply / Corrosive Vapors and Possible Causes, Direct Air Intake Duct with 3-Inch PVC Pipe (Indoor Installation), Remote Control Connections (Fireman's Switch Connection), Connecting the Mastertemp Heater to the Intellicenter Control System Load Center Via RS-485, Mastertemp Heater Electrical Schematic Ladder Diagram, Basic System Operation / START-UP OPERATION - HSI (Hot-Surface Ignition) Lighting/Operation, Safety Controls (Air Flow Switch / Water Pressure Switch / Hight Limits / Operation of Ignitiion Module), Control Panel / Menu Navigation / Operating the Heater, Heater will Not Fire Troubleshooting (A, B), IGN Is on ALARMS: AGS, AFS, HLS, PS, E01 or 126 / SFS, Liming the Heater - Pressure Relief Valve, Spring, Fall (Autumn) and Winter Operation, Maintaining Pool Temperature / Energy Saving Tips, Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages), Technical Data / Heater Identification Information (HIN), Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ), Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent, Fireman's Switch Connection/Remote Control Connections, Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram, Initial Troubleshooting and Troubleshooting Chart, LED Diagnostics (AGS, AFS, HLS, PS Thermistor), Pentair MASTERTEMP 400 HD Brochure (4 pages). This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. Additional Resources. Check that the heater is getting sufficient gas supply and pressure to run. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. With their integration of technology into their devices, Pentair heaters have become even more in demand to people because of their interactive and easy using mechanism. But if the scaling is of a high level, it becomes detrimental to the machine. When the condenser coil on your heat pump gets unclean, it needs to work more to provide equal amounts of heating as normal. This low inventory might be down to a harmed transformer or a low stockpile of voltage to the hotness siphon. To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. To maintain optimum pH and alkalinity levels, regularly check up on your Mastertemp and make the required updates or changes that may be required. Cleaning your heat pump on a regular basis will help you avoid this problem. Check the pH of the water and make sure it is balanced. If not, replace it. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. See if the igniter fires when you turn on the heater. I only own a pool. If so where is it located and how much does it cost. Make sure that the filter of the heater is cleaned as well. Product HIN / Code Requirements / Safety Warning. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. We are always ready for your assistance. If you have a Pentair MiniMax NT and are experiencing technical issues, this blog is for you. Verify that the igniter is dry and not damaged physically. It is old and a bit rusty and loud. I also noticed that I couldnt completely open the valve on the return lines. Sounds like a ghost in the machine! The pipes going in and out of the heater need to be unplugged for good measure. Make sure all the valves are opened and in good working conditions. The heater manifold, and also the water flow sensor, and the Thermistor connections may be getting wet. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. when temp is down it kicks on as soon as it goes over setpoint it shuts off. It worked well for the last 3 days. 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. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. I replaced the HLS twice to no avail. 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 . Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. Step 2: Disconnect the system from the Max-E-Therm heater. Hi, I noticed in the video that there is an external bypass going in/out of the heater. First, power cycle the heater to erase all the unwanted factors. 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. 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. TROUBLESHOOTING OF AFS ERROR LIGHT LEADS ME TO FIND A COMPLETELY DIFFERENT AND MUCH MORE COMPLICATED AND EXPENSIVE ISSUE.DON'T ASSUME YOU HAVE A DEFECTIVE AF. Note: Turn off power to unit prior to attempting service or repair. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . Make sure enough water flow by cleaning the filter. Simply unplug these and turn them off for the winter. Here are the video links. Learn More. "logo": {
3. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. Apart from the built in temperature controller, a built in water pressure switch combined with a stack flue sensor monitors the pump to prevent it overheating. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. Email Us. Top 3 pool pump problems, of course! 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. Use a heat exchanger made of cupro-nickel to resist corrosion. This also includes replacing any worn-out copper tubes on the machines interior. Now, we make a living selling to DIY people, who like to save money. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. Wash them out very carefully with a hose. Still have the power light lit but no other lights are lit. All you have to do now is double-check the burner. For a better experience, please enable JavaScript in your browser before proceeding. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. (Be sure that it is leaking and not just condensating). Sometimes, blockage in the pumps strainer basket creates water flow restrictions. Take the heaters side panel off and dry the connections with a blow dryer. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Change the waters chemicals to achieve equilibrium. When this happens, the front panel buttons will stop working. To safeguard your heater from freezing temperatures, do two things. After about 20 more seconds the heater light goes out . Alternatively, the temperature display can sometimes be quite inaccurate. "name": "Mark Garcia",
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