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Pv light off

Pentair minimax problem service light stays on and on back off board the pv light is not light

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Try interrupting power to take it out of lockout mode(for starts)

Posted on Jun 21, 2009

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How do i get my pool heater to come on?

Open the service panel and look on the back of the board for 2 white or yellow wires that plug into it... disconnect it from the board, really wet your thumb with saliva, and touch the two connectors where you pulled the wires off of... and try to fire the heater... If it fires then you know that it is the thermistor.... I will show you a link to the thermistor on our site.... Do you have the minimax NT? if so here is your thermistor PENTAIR Thermistor probe complete 472101

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The fan in the heater turns on but the heater does not turn on.

Probably a bad circuit board. I have the same problem once the water gets above about 82 deg. I tried cleaning the filter and strainer, cleaning out the heat exchanger, replacing the temperature limit switches, bypassing the pressure switch, and cleaning the ashes off the burner, and none of these worked.

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I have a Pentair MasterTemp Heater 250K BTU (i think) Turned on the spa the heat it today and lost all power to whole Pentair Intlitouch system. Reset system but now heater is showing Service Heater. AFS...

try cycling the power to the heater itself. Check for damage (pack rats, etc..). It sounds like you may have had a direct short. It could be a board problem or a transformer problem. If you're still getting the service heater light, check to see if any diagnostic LED is illuminated behind the board.

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I have a pentair minmax nt, natural gas heater. I am getting the E04 message. I know its a fan failure but I hear the fan fine. When I start it, and look at all the LED's in the back, all are lit up except...

This problem is most likely caused by a damaged vac tube or bad vac switch. Check those first. The hose/tube may have been damaged, especially if you have any mice running around. It's most likely the vacuum tube, the switch is not as likely to fail but it's wise to make sure both are serviceable.

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Err light on on pentair nt minimax. pushed power button, won't go off. any suggestions?

24 v at the transformer ? if yes unplug thesmostat probe if 888 change t probe if err change t board

Sep 06, 2009 | Pentair Minimax NT Heater

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Pentair Minimax Nt heater wont turn on and heat,

Bad thermistor. The yellow wire that plugs into the control board. Lick finger and touch prongs. Heater should come on

May 29, 2009 | Pentair Minimax NT Heater

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Pentair Minimax 250 does not light everytime

that one think thats bad with pentair heaters they say when you turn one on stand to the right cause the door can blow off because the way there burner are set up u need to take out the burner trays and clen them this problem does not happen with raypak heaters

Apr 18, 2009 | Pentair 250k Minimax Ch Ng Mv Heater

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Pentair Minimax Nt heater wont turn on and heat, "err" message

temp sensor get the new one with yellow wires.should do the trick.

Jan 19, 2009 | Pentair Minimax NT Heater

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