In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. "description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. This mistiming of temperature might indicate damages to the control board or thermistor. {
It is also advised to change the entire system if required. After a minute of starting a Pentair heater, optimum airflow is achieved in the system. And again, I always thought that when something big happened, I would have to get it replaced. Replace it if you find no voltage there. 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). Also check that the blower comes on. Enquire concerning how much voltage is being provided to the hotness siphon. My Pentair 250 heater will not stay on the pool setting. Solution: Alter the chemistry of the water and reach an equilibrium. My MasterTemp 400 fails to work intermittently. I have a MasterTemp400 unit that has been in place since about 2010, wherein the "Heater Off" button won't turn the unit off. Inspect the blower and clean out the stuck debris of the element. 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. 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. This kind of damage can be very costly. Is there a bypass valve open? Still have the power light lit but no other lights are lit. View online or download Pentair MasterTemp 400 Brochure. Looking like might be bad control board? The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. 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. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. The controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. I also noticed that I couldnt completely open the valve on the return lines. Pentair Mastertemp 400 Knocking Noise. Thanks for your help! Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. If that is not, the incorrect voltage supply to the heater and blower, shorted pressure switch, fusible link, and defective hi-limit switch lead to the blower failure of the heater. Burner pulsates or surges, especially on ignition. It worked well as usual, heated water to 85F as commanded. Measure the voltage of the heater transformer. Dont stress! I only found 1 small stone stuck inside where the bypass is. Any suggestions? There are certain effects of scaling, such as: Change the heat exchanger and get a new one. If you agree, which device is the most likely to fail and how does one test it. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. Other reasons why the heater is not turning on include: Faulty igniter },
Thank you! They said the 126 display was an error code. People often confuse or term this leakage as sweating. This issue should be checked ASAP. Learn more about pool care and repair. 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 output of the transformer should be between 24 to 28 volts. To get to the burner inside the heater, open it up. 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. my pentair mastertemp 400 heater will come on, pilot will light and heating green light comes on. If not, replace it. This is the best possible solution to this problem. Otherwise, it will be difficult to verify. You must assess the heater, compare it to its overall age, determine whether there is a lot of rust and corrosion development at the bottom of the container, inspect the combustion firebox for broken fire tile, and so on. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. The thermal regulator should be in fine working condition. Wait one minute. Wiring it to a 2 wire remote interrupts the circuit for it to power up. Clean the water filter and pump basket to eliminate the water flow. Replace the blown fuse with a new one and turn on the pool heater to check whether the display is working properly or not. "url": "https://intheswim.com/",
Copyright 2022 In The Swim. Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . "@type": "ImageObject",
Replace the bad thermistor. The thermister, sensors, and Board are working. If no ignition, I turn off, wait, then re ask for heater. Maintenance goes a long way when it comes to heater shelf life. Remove the old thermal governor and replace it with a new one. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. Check out the power of the transformer whether its all good or not. Pentair Mastertemp 400 Blower Not Working, 10. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. 39. 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. To resolve this error number, ensure the fan is not obstructing airflow. The leak can be verified by you, if you lift the lid and inspect inside. 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. Contractor's Assistant: . 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. Replace all the defective ones. This can cause cycling. You must log in or register to reply here. The heater should be set at 104 and let the automation do the rest. Product HIN / Code Requirements / Safety Warning. What's better thanTop 5 pool pump problems? 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 the wire going to the sensor and the sensor itself. In some cases, the water can become too hot or too cold. I had to turn off . Replace the bad ones. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. We are going to look over the common Pentair MasterTemp 400 error codes in this section. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. This error code should not be shown on your Pentair heater at this point. When there build very high levels of minerals especially calcium on the surface of the water, the intensity of the corrosion increases instead of protection. Verify that the igniter is dry and not damaged physically. 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. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. I have a Pentair 400 mastertemp propane spa heater. Possible Cause: Pilot light isn't lit. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. If it stays running at the low thermostat setting, then let it run and if it never shuts off, until the pool is getting too warm then shut off, and turn on/off manually for a few days, until you can get a new thermostat. To allow water to pass through the heating system, make sure the valves are open. Pentair Mastertemp 400 Cycles On And Off, 11. Also, at least once a year, you should disassemble and clean the D.E. A thermistor is mainly regarded as a temperature sensor. To safeguard your heater from freezing temperatures, do two things. Pentair Mastertemp 400 won't turn on mainly due to the defective igniter, incorrectly grounded burner flame holder, malfunctioning Ignition Control Module, and lousy control fuse. If the thermistor is in good condition, then replace the circuit board. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. Worked for 1 weekend, now won't fire up. You are using an out of date browser. 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. The Pool company said that it is probably condensation. So, here we will look at some issues and their solutions. So I thought that was causing the problem. Make sure temperature setting is above water temperature. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. Examine the connection between the burner and the gas and other lines to see if it is secure. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. Check out the fuel level as well. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. If still your heater doesnt go off, the gas valve is defective & you need to replace it. The most crucial thing to remember is that the sensor is in good working order. You are welcome! To Turn off Gas to Appliance. "primaryImageOfPage": {
This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
You can clean your own pool filter easily. COPYRIGHT 2023. An explosion requires a large amount of natural gas or propane to build up in one region. Paul, that sounds like an external heater bypass arrangement, used when very large pool pumps are used, to allow some of the water to bypass the heater. 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. "@type": "ImageObject",
someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. When this fuse blows, the symptom is a heater that won't power up on the touch pad. Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. JavaScript is disabled. "@type": "Organization",
As an Amazon Associate I Earn From Qualifying Purchases. Thanks for your help. Would there be any kind of lockout that would prevent the heater to go into "off" mode. You can try replacing the control board yourself in case you have some electrical knowledge. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Keep in mind, you have two sensors. "address": "",
The valve has to allow enough water into the heater, not too little, not too much. Fault Condition: HIGH WATER TEMP Alarm: Water . Replace the bad igniter and defective flame sensor from your heater. Your Pentair MasterTemp 400 wont stay lit? "height": "219",
If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. 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. It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. Why is my Pentair pool heater not coming on? Reason 3: Bypass Valve has remained opened. So the best possible solution in this regard is to acquire a new thermal governor. 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. Make sure to maintain the device properly. The MasterTemp has a max setting of 104. Possible Cause: Gas supply valve. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. "name": "In The Swim",
After long usage of the thermal governor stops working permanently, thus it cant be fixed by any means. In case there is blockage in the heat exchanger, how do I fix that? Leaking heat exchangers are often confused with sweating or condensating heat exchangers. It may not display this or other websites correctly. Articles and resources for swimming pool owners and DIYers. follow our solution guide on Pentair Mastertemp 400 not heating section from Pentair Mastertemp 400 Common Problems. Thank you for your time and response. Contact customer service and tell them about the issue. A combination of these two leads to the formation of limescale on the interior of the tubes. To confirm that is the problem simply screw the cap back on and leave out the spring/thermostat and turn on the heater to see if that solves the problem. 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). Look for a short between the Thermistor and the control boards wiring. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. },
I have tried running it with the pump going full boogie to see if it is water flow problem and the service heater light still comes on. 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 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. Inaccurate Temperature Control or Display. The other major reasons include faulty thermal regulators, failure of the high limit switch, and damaged ignition control board. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. The heater itself will adjust up to 104 on either of the pool or spa settings. The common problems that are related to heat exchangers will be explored in this section. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. It is old and a bit rusty and loud. No code is present. Gentlemen, Mastertemp 250 Won't Turn On. Something mild to someone might be too hot or too cold for another. $4100 is not cheap. It is being practiced by thousands of pool owners just like you. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. spa light is on. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Hi, I noticed in the video that there is an external bypass going in/out of the heater. 1st one is the initial issue. Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. },
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