Question about Pentair MINIMAX NT TSI IGNITER

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Heater starts and then stops.

I have a pentair heater which when started the fan turns on for about 30-45 seconds and the just shuts off, we were told it was a faulty mother board. I replaced that (for a penny or two) but it still does the same thing. Any suggestions?

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  • kmyhr Mar 09, 2009

    I have the same issue. The heater fan starts, the burners light for a few seconds, then it shuts down. The service light comes on on the panel. I replaced the board, but it still has the same problem.

  • kbuckner2004 Mar 09, 2009

    Your lucky, I dont even get the burners to fire up. I was quoted $145/hr to look at it plus parts. all the companies I have talked to say they replace item after item till they located the deficient part. why do I know I will end up with a $1200 bill.


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I will keep you posted. I have aquired all the service manuals and I am in the process of taking the heater apart. It is not the motherboard.

Posted on Mar 09, 2009

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We had the same issue. Fan worked, gas flowed, burner glowed, but would not ignite. Heater would shut down after a few attempts and give the E04 message. Service Tech replaced the ignitor, now it works.

Posted on Jun 03, 2009

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