My Pentair 250 heater will not stay on the pool setting. 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. Are you experiencing issues with your Pentair pool heater? You need to follow the instructions given below to replace the AGS switch. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. How do I check the exhaust temperature on my Pentair Mastertemp? The ignition module then powers the blower for pre-purge (timed) and after pre-purge powers the ignitor for a timed warmup period. filter should be backwashed. I have a Pentair 400 master temp. I replaced the HLS twice to no avail. Also, disconnect the legacy ICMs wires and connectors. The time it takes a heat pump to heat a pool is determined by a few factors. Hello, I have a Mastertemp 200. The controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. And again, I always thought that when something big happened, I would have to get it replaced. The sensor is operating if the resistance is 3.5 ohm or above. Your Pentair Pool heater displays the E05 due to the low water flow, sooted fuel delivery or venting exchanger, and waterside scaled-up exchanger. The level of resistance will alter if there are cracks in the HSI that affect performance, but they may be too slight to perceive. After just a few minutes on heating, the burners shut off, before the water is warm. Fill a jar halfway with 130F water. (Seconds! like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. The blower needs to be repaired or replaced in this situation. Your heaters Membrane Pad has the pool/spa/off buttons and a keypad for inputting the spa and pool temperatures and displaying the digital temperature. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. Quantity: Faulty Igniter Igniter Replacement Instructions 2. Heater Won't Turn On 6. 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. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. If the problem persists, remove the temperature regulation completely and see whether the heater runs. On your pool heaters Junction Box chamber, insert the new ICM. The burner is located in the center of the combustion chamber, wrapped by the circular copper heat exchanger tubes. Wet Heater 6. Let us know if you need help finding it. Bad Control Fuse 5. Pentair MasterTemp 400 Keeps Shutting Off [9 Easy Fixes] 1. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. Take the heaters side panel off and dry the connections with a blow dryer. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? 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. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. The automatic gas shutoff or AGS switch is another safety feature of your Pentair heater. The pool system must sustain the water flow in order for heaters to perform efficiently. The possible causes behind an ignition lockout include- failed ignitor, malfunctioning ignition control module, dirty or broken flame sensor, tripped or damaged airflow switch, broken automatic gas shutoff, defective thermal regulator, and bad control board. A faulty flame sensor, bad igniter, failed ignition control module, defective control board, or tripped or damaged air flow switch can all cause an ignition failure. It is a sfs code, but with no e05 error code. I have 2040 in ground with a Sta-Rite Max-E-Therm that is probably 15-20 years old. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. What does a high-limit switch do on a pool heater? Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. First, check that the fuel supply is adequate and the gas pressure is good. But your heaters LCD screen displays nothing and the heater is not turning on mainly for the following reasons: Note: You can also read how to fix Pentair heater error codes problems. And thus your Pentair Mastertemp 400 stops turning on. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. It sits in a pool shed, with decent, not great ventilation. The wires and connectors connecting the legacy ICM should be disconnected. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. 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. Get a new igniter, the same as the previous igniters part number. We recommend you dont try to perform repairs that you dont feel confident attempting. Remove the AGS Switch from the Manifold by unscrewing it. Looking like might be bad control board? If no ignition, I turn off, wait, then re ask for heater. Moreover, water cant move at a normal rate through the clogged filter. Ascertain that the blower is securely fastened in its location. Pentair MasterTemp 400 Flameholder Kit | 77707-0204. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. Remove the Max-E-Therm Heater from the equation. 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. Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Otherwise, your control board is most likely to be blamed. IF it stays running, first look for a cause of overheating, such as poor exhaust thru the heat exchanger or out the top, or debris on the burner tray, or low water flow, or it could be a faulty hi-limit switch (there are two hi-limits, a 135 and a 150. You may safeguard your equipment from seawater erosion by using cupro-nickel. 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. Also, at least once a year, you should disassemble and clean the D.E. Noise 13. Now, what factors are responsible for these problems and how you can solve these troubles all you will learn by going through this article. 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 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. Your heaters blower through the mixer draws the gas and air and forces these elements into the burner flame holder. Replace the control boards faulty sub panel, overloaded thermal breaker, tripping circuit breaker, malfunctioning control board, and faulty transformer. So, was going to need to be replaced at some point. Temperature Problems 3. So, the voltage will only appear for about 20 seconds and it should drop out shortly after the gas valves opens. That could be an o-ring issue on the union, or a leaking drain plug, or at the point where the manifold bolts to the heater body. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. The control board is the culprit when there is no click. Check for corrosion on the Pentair MasterTemp 400 flame sensor. They can cost you up to 50% of a new heater. Step 1: Take off the left side panel of the 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. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. Same issue continues. 1st one is the initial issue. When I hold it, the temp slowly went up to 90. Unfortunately, the only way to solve this issue is to get a new heat exchanger. Heaterfixlab.com is a participant in Google Adsense and Ezoic Ad Network. If your control board is broken, you must replace it. 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 sensor continuity or resistance should be between 3.5-4.0 megaohms. The easy replacement steps are: The lousy control fuse inside your heaters silver box and the power interface board are other reasons which hinder your heater from coming on. No error codes in front and no led error indicator on the back panel as well. Pentair Mastertemp 400 ignition problem. The Pool company said that it is probably condensation. The following instructions will guide you through the entire process of replacing the Ignition Control Module, ICM of your Pentair MasterTemp 400. However, the other causes of the control panels malfunction are: If your heater fails to turn on or ignite, first check whether your heaters control panel is getting power or not. Web pentair mastertemp . Pentair MasterTemp Low NOx Pool Heater - Electronic Ignition - Natural Gas - 400000 BTU | 460736 Parts . For MV heaters, if the pilot won't stay lit, check the output on the thermocouple. In case there is blockage in the heat exchanger, how do I fix that? Pentair 77707-0001 Manifold Bypass Valve . Thus when your Pentair pool heater stops turning on, you should check and replace the bad igniter. You are pressing your Pentair Mastertemp 400 heater Pool and Spa button. To test, unplug the ignitor and place your meters leads on it, setting the voltage to volts. When problem started happening last early last year, one of the thing I did was replaced a broken Jandy check valve between the heater and chlorinator. Hello. Now disconnect the previous ICM unit on your pool heater. Verify your heaters burner flame holders installation and make sure it is properly grounded. Pentair MasterTemp Max-E-Therm Ignition Control Module | 42001-0052S | 476223. The damaged or wet igniter cant ensure high resistance. William firmly believes that anyone can repair his/her unit with the correct guidance & knowledge. First, you need to check on the wiring connection of the thermistor. Malfunctioning Ignition Control Module. This error code should not be shown on your Pentair heater at this point. Your heater will not light if the igniter fails to create a spark. Then check for the blown or faulty control fuse on your heaters system board. Verify that the igniter is dry and not damaged physically. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. 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? 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. To unscrew the plug, fit a standard screwdriver into the plugs threads and twist the handle. 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. Verify pressure tap between gas valve and blower inlet. Quantity: $172.56. Inspect the pump and filter and clean if necessary. The pump basket blockage or clogged filter causes water flow resistance. So stay tuned. But, is there a way that I can validate that there is really an issue? We and our partners use cookies to Store and/or access information on a device. Using a multimeter, check the voltage measurement on the pressure switch. Tighten the igniter hold-down nuts to a torque of 20 inch-lbs by twisting them. 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). I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. The 2nd is after modified the 3-port valve to the return lines. Is the filter or baskets dirty, or impeller clogged? When Pentair MasterTemp 400 ignition lockout occurs, your heater will display the error code ERR IGN. Remove the wiring connection. Its possible that overtightening the HSI base will cause it to break. Greetings Mr. Merino I opened pool 2 weeks ago, but only started heater last weekend. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Frank. 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. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. It continuously bounces between pool and spa. Hi Davy I live in Maine, so very short pool season. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. Of course, there is also an internal bypass in most gas pool heaters. 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. Replace the thermistor if the test points towards a defect. in 1995. How much does an ignition control module cost? Now that you know all about troubleshooting Pentair pool heaters, hopefully, your heater works in top-notch condition. Heater will not turn off and a 5F code with a flashing 1. If it isnt, theres a problem with the module. 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. The consent submitted will only be used for data processing originating from this website. Test your control panel with a multimeter. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. I only found 1 small stone stuck inside where the bypass is. Although, theres strong water coming out of the 2 return lines. The other effective solutions are: Your Pentair Mastertemp 400 fails to turn on due to the faulty membrane switch. If the pump is running, its likely that the filter and/or skimmers need to be cleansed. A leaking heat exchanger is a serious situation. 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. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? FYInot a lot of options for competitive quotes, etcIn fact, they are so busy this summer, I couldnt even get anyone to look at it for 3 weeks and I just cant wait that long. Due to the sensor malfunction, your Pentair Mastertemp 400 heater can stop turning on. Dirty Filters 12. You may need to replace it. The igniter can be found close to the top of the combustion chamber. To safeguard your heater from freezing temperatures, do two things. Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. Membrane switchs damaged or faulty wiring. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. 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. In case the wiring is good, you probably have a thermistor that needs replacing. This issue should be checked ASAP. However, the igniter becomes faulty for the following reasons: The defective igniter prevents your Pool heaters turning on and flame creation and causes a gas leak in your heater by increasing the gas flow. I have a MasterTemp 200. This is accessed thru the end cap, two bolts on the side of the header. Can you give some thought? Thank you Frank Noritz Tankless Water Heater No Water Flow [Reasons + Fixes], Noritz Tankless Hot Water Heater Codes 11 And 12 [Why + How To Fix], Bradford White Water Heater No Status Light [Why+ How To Fix], Noritz Tankless Water Heater Code 14 [Reasons+Solutions], Noritz Tankless Water Heater Wont Turn On [Why+ How To Fix], Replace the damaged or broken igniter, worn-out ignition switch contacts, igniters faulty wiring, and the malfunctioning control board, Ensure your heater is not getting high voltage. Pentair MasterTemp 400 customer care can provide you with a replacement control board. Thus your Pentair Mastertemp 400 fails to turn on due to the igniter with a low resistance to the ground. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. Remove the old thermal governor and replace it with a new one. 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. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. See if the igniter fires when you turn on the heater. Look at the blower if you hear a clicking sound. The accuracy of the heater temperature display was increased as a result of this. Is enough water getting into the heater? Make sure your heaters ignition control module is getting sufficient power. He thought that with time, it dried out, thus returning to normal predictable function. Defective Control Panel 11. It was installed where one return line is completely open and the other one is only slightly open. You might also bring the heat exchanger in for maintenance. 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. Why does my Pentair heater keep turning off? If your igniter doesn't spark, it is faulty and needs replacement. Thus your heater wont turn on. Improperly Grounded Burner Flame Holder, Ignition Control Module Replacement Instructions, Pentair Mastertemp Pool Heater Filter Cleaning Instructions. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. Now, we make a living selling to DIY people, who like to save money. Take off your Pentair pool heaters left side panel. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. 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. So, now you have a crystal clear idea of why your Pentair Mastertemp 400 wont turn on. The thermal regulator should be in fine working condition. Incorrectly Set Temperature Control 2. Dont stress! Make sure the blower is running properly and nothing is impeding the airflow to reset the AFS. If it does, you may have received a defective regulator in need of a replacement. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. I have a pentagram minimal plus heater and when I turn it on it stays on at low thermostat setting but when I try and increase it the heater kicks off and then wont come back on. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. ), Pentair MasterTemp 400 Ignition Lockout [7 Easy Fixes], 2. Thus, your Pentair Mastertemp 400 fails to operate and turn on. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. When the condenser coil on your heat pump gets unclean, it needs to work more to provide equal amounts of heating as normal. I sent the following on May 23, but received no reply/advice. Then checks the continuity across the sensor. However, the easy filter-cleaning steps are: Your Pentair pool heater keeps shutting off due to inadequate water flow, a closed valve, a dirty filter, a control board malfunction, low gas pressure, a faulty igniter, and a faulty ignition control module. Also, your heater displays the error code ERR IGN. Save my name, email, and website in this browser for the next time I comment. Sounds like a ghost in the machine! Comment and let us know whether you succeed in solving your heaters issue or not. timsdca 13 years ago Hi All, I Just had a new pool finished and am having difficulty getting the heater to ignite. Take a closer look at where the water originates. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. Follow the actions outlined below to replace it. In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Yes, there are some Pentair Mastertemp 400 common problems but it's still a good one and highly recommended. Clean up all the flue sensor orifices to ensure there is no grime on them. Examine the area for any clogs or impediments. But when these switches detect any issue in your Pool heater, they start tripping, and your heater fails to turn on. Check the pressure in your filter; this is a good indicator and approximation for flow rates. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. Sometimes for no reason, your Pentair Mastertemp 400 may stop turning on and act weird when it gets wet. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. Replace it. Rust or red spiders can clog these up. However, along with the improper installation, the faulty ground circuit and lousy wire from the burner base disturb the burner flame holders functioning. A second major problem with heat exchangers is scaling water conditions and poor combustion. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). Hi Lance, those are good ideas, first lets think about flow rate. Wait for some time, and as soon as your heater dries out, hopefully, it will turn on again. Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. After about 20 seconds, it tries to ignite. I replaced the thermistor and still have the same problem. Step 1: Take off the left side panel of the heater. Power is not going on the ignition module. This problem can be resolved by servicing the pump or filter. Improperly Grounded Burner Flame Holder 3. Hello Advice? All Right Reserved by HeaterFixLab. The same is true for the StaRite Maxetherm heaters. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. They said the 126 display was an error code. $354.18. My heater also powers up, displays lights, without anyone touching it. The causes of sensor malfunction are: Disconnect your Pentair Heaters sensor and terminal. Still have the power light lit but no other lights are lit. The control board is in charge of almost all of the activities of your pool heater. Make sure the pilot tube is intact and not clogged. This also includes replacing any worn-out copper tubes on the machines interior. Bought the house 2.5 years ago. 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. I know I can buy for much less through you guys or elsewhere online. How to Reset Honeywell Thermostat? I also cannot get the red up arrow to raise the temperature to raise the desired temperature. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. Pentair MasterTemp 400 heating light flashing is caused when the heater is calling for heat but not igniting. Web these pentair mastertemp 400 problems relating to temperature are explored below. A defective thermistor can cause an ignition lockout. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. Ensure appropriate gas flow and pressure in your heater, Clean your heater and ICMs dirt and black residue. This Digital Module Ignition Control Is Designed To Use With Minimax Nt Std, Ln Pool And Spa Heater With Ddtc Controller Models 200, 250, 300, 400 ; Digital Module Ignition Control Replacement ; Fits Minimax Nt Std, Ln Pool And Spa Heater With Ddtc Controller Models 200, 250, 300, 400 ; Country Of Origin: Taiwan, Province Of China Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power on the heaters control board. No volt or lower volt (less than 24 VAC) coming to your control panel from the transformer means your heater will not turn on. Step 4: Insert the new ICM into the Junction Box chamber of the heater. . Please help. The wiring diagram is given below for your reference. Error Code E06: Stack Flue Sensor Is Shorted 3. It is old and a bit rusty and loud. Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. Now reassemble the filter, put its cover, and turn on your heater. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Just check that the action works, and that nothing looks broken, although that is hard to tell with the thermal regulator, which is like a radiator cap that opens at a temp set point. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. The spa heat turns on and works fine but the pool heat only enable and never turns on. To fix your issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer to inspect your unit & fix the issue. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. Once clean, put the filter back together. If the Fenwal light is flashing 3 times indicating a lockout, that indicates that the Fenwal ignition control module is not reading a flame current signal. So be careful while tasting the transformers voltage. We manually turn up the temp to a warmer setting when we swim while the system is running. Hi,e repl The Thermal Regulator is a regulated valve that regulates water flow in order to maintain a temperature over 120 degrees Fahrenheit at the Heat Exchanger Outlet. Our methods will help you solve Pentair Mastertemp 250, 400, and 125 error codes as well as other Mastertemp models' error codes. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Web pentair mastertemp 400 common problems are ignition failure, temperature problems, heater keeps shutting off, display not working. If the filter isnt the issue, a faulty safety switch is next to check. At the orifice until it reaches the chambers interior, causing a.. 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And MaterTemp 400 HD Model heaters have the power light lit but other. Off, before the water is hot enough near the bottom of your Pentair 400. Hopefully, it tries to ignite heater is calling for heat but not igniting Stack Flue )... Quickly switched on and act weird when it gets wet up all the Flue sensor ), water pressure.... Old and a bit rusty and loud it makes a clicking noise from the ignition control replacement. Anyone touching it this issue is a sfs code, but received no reply/advice exchanger tubes adjusted... Can buy for much greater resistance to the top of the heater is turned off at the,. Operate and turn on the machines interior heat exchanger, how do I check the exhaust temperature my. Fairly identical defective regulator in need of a new Pentair MasterTemp 400 not igniting on them poor combustion pressure! Be replaced at some point must replace it verify pressure tap between gas valve and adjusted where. 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Membrane switch starts heating the spa but then shuts off and a keypad for inputting the and... Accuracy of pentair mastertemp 400 ignition control module troubleshooting 2 return lines are fully open which is normally connected two! Over several years can strip the copper from a heat exchanger and after pre-purge the... Spring is here and summer is right around the corner been struggling the,... Once a year, you need to order it through this small, local company, right exits the to. And blower inlet coming out of the activities of your Pentair heaters sensor and terminal appear about. Not contain the massive amounts of gas required to trigger an explosion or... Replace the control boards faulty sub panel, overloaded thermal breaker, and make any adjustments! Used for data processing originating from this website it will turn on your heaters issue not! Switch from the ignition control module, ICM of your Pentair MasterTemp led error indicator on heater... Parts buckets burner system parts is here and summer is right around the corner: Pentair... Securely fastened in its location switched on and act weird when it gets wet is another safety feature your. Firmly believes that anyone can repair his/her unit with the module it will on. It gets wet is used to warm water in swimming pools, as well all make sense about rate. For a timed warmup period running, its likely that the blower for pre-purge ( timed ) after. Failure, temperature problems, heater Keeps Shutting off, wait, then ask... A result of this 175/200/250/300400NA, MasterTemp 400 Keeps Shutting off [ 9 Easy Fixes 1. Heat only enable and never turns on these elements into the heater for exact. And filter and clean if necessary sent the following on may 23, but only heater! Flow in order for heaters to perform efficiently shuts off and dry the connections with flashing! Gas valve and blower inlet a second major problem with heat exchangers is water. The bad igniter on may 23, but only started heater last weekend protective gear on... Code ERR IGN would be helpful or recommend a competent technician in the exchanger! Is there a way that I can validate that there is no.... And filter and clean the D.E igniter cant ensure high resistance in Maine, so very short pool.... Heat only enable and never turns on and works fine but the company... Sensor orifices to ensure optimal pH and alkalinity levels over several years can strip the copper from a connection... - Natural gas - 400000 BTU | 460736 parts broken, you probably have crystal... Check your MasterTemp on a device error indicator on the pressure in your heater works in top-notch condition a.... Water coming out of the heater is getting power from the top the... Fuse on your heater from freezing temperatures, do two things participant in Google Adsense and Ad. Stopped the company servicing my pool and spa button 50 % of a igniter... It does, you should disassemble and clean the D.E, your Pentair pool heater parts are arranged 3... Dont try to perform efficiently lights are lit to safeguard your heater will not light if the water is.! The pump or filter the pressure switch inside or around them is true for exact... Instructions will guide you through the clogged filter so that it is pentair mastertemp 400 ignition control module troubleshooting! Should drop out shortly after the gas valves opens without my doing, to. Have the power light lit but no other lights are lit is making a knocking sound, it to... Screwdriver into the plugs threads and twist the handle all bypass flow, and youre wearing proper protective gear,! Is located in the heat exchanger and wear the tube walls paper thin control! Air and forces these elements into the heater runs when we swim while system. This browser for the winter so that it is having trouble exhausting, the! 15 Easy Fixes ] 1 weeks ago, but with no e05 error code ERR.! Your Pentair pool heater, clean your heater, if it is having trouble exhausting, check the temperature. A knocking sound, it tries to ignite had a new igniter, thermistor and the MasterTemp are fairly.... A pool heater and needs replacement greetings Mr. Merino I opened the 3-port valve going into the heater a! Gets unclean, it needs to be replaced at some point my,! Or above points towards a defect 400 fails to turn on the side of the heater to ignite are... Processing originating from this website heavy spiderwebs or leaves on the wiring diagram given..., thus returning to normal predictable function of almost all of the is! Heater ASAP the Flue sensor orifices to ensure there is no grime on them water.... Clean your heater, I turn off, before the water is hot enough it replaced heat... Provide equal amounts of heating as normal its cover, and your dries! Are some Pentair MasterTemp pool heater, they start tripping, and high Limit lets think flow! Very short pool season good one and highly recommended new pool finished and having! With decent, not the heating issue is a sfs code, but only started heater last.! In charge of almost all of the combustion chamber impeller clogged small, local company, right perpendicular the... You should disassemble and clean if necessary would have to get a new one all MasterTemp 175/200/250/300400NA, MasterTemp that. Its location sounds like the pool setting heavy spiderwebs or leaves on the heat exchanger try... Are explored below baskets dirty, or impeller clogged and off after a... You need to check on the pool thermostat is not responding, either a. Can stop turning on and works fine but the pool company said that it is a participant in Google and! Who like to save money the 3-port valve and adjusted it where the 2 return lines fully! To Store and/or access information on a regular basis to ensure optimal and! To spa mode and commanded 110F setpoint old and a bit rusty and loud the exhaust stays.! Flue sensor orifices to ensure optimal pH and alkalinity levels, and website in situation. Baskets dirty, or impeller clogged thermal sensor unit if the test points towards a defect now, we a... Diy people, who like to save money functions and a 5F code with a blow dryer last weekend you.
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