Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: Pentair MasterTemp heater issues

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Wentzville/MO
    Posts
    4

    Pentair MasterTemp heater issues

    I have the Pentair MasterTemp natural gas heater for my in-ground pool (pictured below), I can not find a posting or any information on anyone having this same issue so I thought I would start here. When I turn the heater on and press the pool heater it will start up and heat for a little while, (never consistent on how long it will run, sometime a minuter some time 15 minutes). The heater will then randomly change to 'spa' from 'pool' and stop heating. There are no error codes on the screen, the service lights are not on, it shows the temp. of the water, and I have the set temp higher then the water temp. Any help would greatly appreciated!!
    Holts
    25,000 gal inground

  2. Back To Top    #2

    In the Industry

    ps0303's Avatar
    Join Date
    Jul 2011
    Location
    FL
    Posts
    3,436

    Re: Pentair MasterTemp heater issues

    So the unit is operated directly from the unit and no automation system?

    Have you checked to see if anything has made a nest or something inside the unit? Removed the four front and rear panel screws and then in each corner under the top are wing nuts. Remove them and check to make sure nothing is living there.
    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. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

  3. Back To Top    #3

    Join Date
    Jun 2016
    Location
    Wentzville/MO
    Posts
    4

    Re: Pentair MasterTemp heater issues

    Thanks, it is operated directly form the unit, no automation. I did take the front and back of the panels off and although a little dirty, no nests or piles of debris.
    Holts
    25,000 gal inground

  4. Back To Top    #4

    In the Industry

    ps0303's Avatar
    Join Date
    Jul 2011
    Location
    FL
    Posts
    3,436

    Re: Pentair MasterTemp heater issues

    Then I would possibly suspect that maybe the keypad membrane is going thus causing the unit to jump to spa. What if you set it to spa and set your temp?
    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. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

  5. Back To Top    #5

    Join Date
    Jun 2016
    Location
    Wentzville/MO
    Posts
    4

    Re: Pentair MasterTemp heater issues

    Thanks again, I did try that, but when the heater switches from Pool on to spa on, it will not function at all until I switch it back.
    Holts
    25,000 gal inground

  6. Back To Top    #6

    In the Industry

    ps0303's Avatar
    Join Date
    Jul 2011
    Location
    FL
    Posts
    3,436

    Re: Pentair MasterTemp heater issues

    It should function no matter which setting you choose. Can you adjust the temp up and down OK?
    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. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •