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No display lights

Pentair display lights. my friend had to replace circuit-board. how do i know for sure...thanks, dave black

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Make sure you have 24 volts coming from the transformer...Alot cheaper part.

Posted on Aug 23, 2009


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Posted on Jan 02, 2017


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1 Answer

Why is there no display on my pentair mini max nt?

is ther power going to it if so check power supply or main power conversion board

Aug 22, 2014 | Pentair Minimax NT Heater

2 Answers

Pentair Mini max my power light comes on but my pressure sw does not light up

if pressure switch does not light that means no pressure either water flow or a bad pressure switch you can jump the wires on the pressure switch but be very carefull if it does start make sure it does not bang or make noises

May 14, 2014 | Pentair Minimax NT Heater

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I have a pentair mini max heater and the digital raedout says err is there a way to clear this and restart heater

The err code mean either the thermistor is bad, or the transformer is not putting out the correct voltage, or the control board is bad.

Mar 10, 2011 | Pentair Pool & Spa

1 Answer

My pentair mini max display is indicating a "LO" .

The pentair mini-max only displays LO when the water temperature is at or below 58 degrees F.
The heater is set to not fire at this temperature due to the condensation that can occur.
If the water is above this temperature and you are still getting this code, the temp sensor is installed incorrectly or is just bad.
If you need futher advise, e-mail me here.

Nov 15, 2010 | Pentair Pool & Spa

1 Answer

Where is the best place to geta pentair mini max nt 400 control board (472100)?

Best bet is to call Pentair and ask for a dealer that carries the part. Then call the dealer and ask if they have it, can get, what it'll cost etc. Often times local part suppliers won't keep the circuit boards in stock if carried at all. So best to call first. Pentair's number is: (800) 831-7133, andf their website contact info is:
Hope this helps. If you need further assistance post a reply in the comments, and don't hesitate to leave good feedback if you found this helpful. Thanks, and good Luck!

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Sep 29, 2010 | Pentair Minimax NT Heater

1 Answer

I have a Mini Max 100 pool heater. The pilot

check pressure switch for proper adjustment and make sure filter is clean so system pressure is normal

Jun 07, 2009 | Pentair MiniMax 100 Aboveground 100,000...

1 Answer

Pentair Mini Max , no power to igniter. Heater would not ignite so I pulled cover and found broken igniter so I replaced it and still it will not glow when gas valve attempts to light. I can smell gas.i...

you may have to reset your board.turn all power off to the unit then turn it back on.if this doesn,t do it make sure you have a good complete circuit from board through element then back to ground.

Mar 05, 2009 | Pentair Pool & Spa

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