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Thread: Pentair 400K Master Temp intermittent issues

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    Join Date
    Jan 2011
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    Richmond, Texas
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    524

    Pentair 400K Master Temp intermittent issues

    Hi All -

    I have a 400K Natural Gas Master Temp heater. Lately I have had issues where it will go through the normal sequence of start up and start heating only to shut back off withing a min or two with service light indicator to come on. If I shut it off and turn it back on it will usually come back on and heat as normal. Sometimes I have to do this three or four times. This seems to happen when it is wet outside and we have had a bunch of rain again this year. If it hasn't rained for a few days there are no issues. Every time this happens it is dripping wet and of course I don't want to take the panel off to read the error codes in the mud. Any ideas what could be causing this?

    Thanks

    Flippy
    Approx 11K Gal. 10'X30' Semi free-form IG - 6 ' raised spa w/6 jets - 10' circle sun shelf with 1 bubbler - Waterfall - 3 / 1.5 HP pumps - Polaris 280 Cleaner - 3 Pentair Color LED Intellibrite Lights - Pentair 400K Master Temp - 2 Valve Actuators - 5 Fiberstar Mini Laminars - 1 Fiberstars 2004 Illuminator - 2 Skimmers - 6 Returns - Caribbean Blue Pebble Tech - 600+ sq ft kool decK - Auto Fill - 2 Boston Acoustics VOYA RK5 Outdoor Rock Speakers - 2 TIC Corporation TFS5CN 6.5-Inch 150-Watt Terra-Forms Rock Speakers - Apple Airport Express - 1 Awesome View.

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    ps0303's Avatar
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    Jul 2011
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    FL
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    Re: Pentair 400K Master Temp intermittent issues

    You really need to read the error code. It will provide you a starting place to determine what is wrong and in some cases tells you exactly what to do.

    How old is the unit?
    Paul
    http://www.gastekservices.com

    A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you.

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    Join Date
    Jan 2011
    Location
    Richmond, Texas
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    524

    Re: Pentair 400K Master Temp intermittent issues

    Manufacture date is 2/2009 and we moved in 12/2010. I guess I will have to break down the next time it happens and get a little muddy.
    Approx 11K Gal. 10'X30' Semi free-form IG - 6 ' raised spa w/6 jets - 10' circle sun shelf with 1 bubbler - Waterfall - 3 / 1.5 HP pumps - Polaris 280 Cleaner - 3 Pentair Color LED Intellibrite Lights - Pentair 400K Master Temp - 2 Valve Actuators - 5 Fiberstar Mini Laminars - 1 Fiberstars 2004 Illuminator - 2 Skimmers - 6 Returns - Caribbean Blue Pebble Tech - 600+ sq ft kool decK - Auto Fill - 2 Boston Acoustics VOYA RK5 Outdoor Rock Speakers - 2 TIC Corporation TFS5CN 6.5-Inch 150-Watt Terra-Forms Rock Speakers - Apple Airport Express - 1 Awesome View.

  4. Back To Top    #4

    Join Date
    Jan 2011
    Location
    Richmond, Texas
    Posts
    524

    Re: Pentair 400K Master Temp intermittent issues

    It finally happened again. The only led lit on the back was LED 11 and I think that is the service indicator LED. I shut it off and turned it back on and it worked with no issues. This only happens when it has rained the same day. Any ideas?
    Approx 11K Gal. 10'X30' Semi free-form IG - 6 ' raised spa w/6 jets - 10' circle sun shelf with 1 bubbler - Waterfall - 3 / 1.5 HP pumps - Polaris 280 Cleaner - 3 Pentair Color LED Intellibrite Lights - Pentair 400K Master Temp - 2 Valve Actuators - 5 Fiberstar Mini Laminars - 1 Fiberstars 2004 Illuminator - 2 Skimmers - 6 Returns - Caribbean Blue Pebble Tech - 600+ sq ft kool decK - Auto Fill - 2 Boston Acoustics VOYA RK5 Outdoor Rock Speakers - 2 TIC Corporation TFS5CN 6.5-Inch 150-Watt Terra-Forms Rock Speakers - Apple Airport Express - 1 Awesome View.

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