Question about Pentair 200k Minimax Ch Ng Mv Heater

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PIlot light stays on, but heater won't turn on. Burners do not start up when you turn switch on. What to do? pentair minimax ch 200M

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1 Answer

Why is water dripping on burners of pentair minimax ch 200m?


bad heat exchanger or you have condensation this happens when the temperature delta is too high

May 21, 2014 | Pentair Minimax CH Heater

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Ther polit light will not stray lit


If the plot light will not stay lit then usually either the pilot is not sufficiently heating the thermocouple or there is a problem in the pilot control valve. I hope this helps.

Aug 13, 2011 | Pentair Minimax CH Heater

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I have a Pentair Minimax CH 250M pool heater. When I opened my pool, the heater started up fine and heated the pool initially. However, since the initial heater it has not come back on, and the pool is...


Do you have 24V at the brown wire of the gas valve? If you do then it is probably a bad gas valve.
If you don't have 24V on the brown wire it is probably the ignitor.

Jun 04, 2011 | Pentair Minimax Ch 250,000 Btu Natural Gas...

1 Answer

The pilot light on my pentair minimax ch 250m will light, but when i switch button from pilot to on the flame goes out on the pool heater.


More than likley this is a bad thermocouple and will need a new pilot assembly. But it can also be a short in the safty circut, rat chewed wires or a bad gas valve. It may be best to get a repairman involved. Or you can just drop each switch out of line and jump past them to check. But part changeing can get pricy. Good luck.

Jun 23, 2010 | Pentair Minimax NT Heater

1 Answer

Do not know how to start pilot light


There should be instructions on the inside of the heater access door. Make sure you are comfortable working with gas heaters. Make sure the shutoff valve supplying gas to the heater is on. Turn the gas valve to "pilot", press and hold it while attempting to light the pilot. Once the pilot is lit, continue holding the gas valve knob down for about 30 seconds. The pilot should stay lit once you release the knob. If the pilot stay lit, turn the gas valve to "on". Replace the heater access door and make sure you have proper water flow and attempt to light the heater. If it will not light, or the pilot will not stay on, you will probably have to replace the pilot generator. It provides voltage to run the heater and after time it wears out and produces less and less voltage. A millivolt heater runs on less than one volt so any power loss can be a problem. If you are able, test the pilot generator with a multimeter to see if you are getting at least 500mv when the pilot is on. If not, you should replace the pilot generator or even the entire pilot assembly. Hope this helps...

Sep 27, 2009 | Pentair Minimax Ch 400,000 Btu Propane...

1 Answer

Main burner not lighting


Could be bad coupler or pilot valve is not staying up due to bad spring. If the light does stay lit at all, then the problem is with the fuel.

You can get the entire pilot assembly for $70 at poolcenter.com

Jul 05, 2009 | Pentair 250k Minimax Ch Ng Mv Heater

1 Answer

Pentair Minimax 250M


how many times it blink will tell you what is wrong check at the codes. unplug thermostat check fo homs 10 k around is fine at 80 degrees pressure switch require a by pass but DO NOT RUN THE HEATER WITH A BY PASS ANY CONTROL!!!!

Jun 17, 2009 | Pentair 250k Minimax Ch Ng Mv Heater

1 Answer

Pentair 250 CH LP will not ignite. Pilot works


to test the presure sensor jump the wires that plug in to the sensor if it turns on the presure sensor is bad and the the thermostat do you mean thermo sensor the one that checks the water tep follow the wires to were they plug in turn power off get your finger wet and put it were it plugs in on the 2 prong and turn it on the heater will light up if the sensor is bad

May 11, 2009 | Pentair 250k Minimax Ch Lp Mv Heater

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