Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Pentair Mastertemp error

  1. Back To Top    #1

    Join Date
    May 2010
    Location
    Yuma AZ
    Posts
    67

    Pentair Mastertemp error

    Just attempted to start my MasterTemp heater but it keeps shutting down. The service heater light is on along with three rapid flashing lights located within the ignition control module. Any thoughts or ideas what parts are required to troubleshoot and repair? The ignition control module label diagnostic indicator notes "3 flashes = ignition lockout". Not very helpful to me I have checked to make sure the heater is receiving natural gas, pump and filter running without obstructions. Any help would be greatly appreciated.
    Thanks,
    Harrison
    10,000 gallons IG Freeform, 8ft raised spa,pebble finish
    FNS 60 Sqft DE Filter,2HP Whisperflow for Pool/Spa filtering
    2HP Whisperflow for Spa jets
    1HP Whisperflow for Waterfall
    Master Temp 400,000 Btu Heater

  2. Back To Top    #2

    Join Date
    May 2010
    Location
    Yuma AZ
    Posts
    67

    Re: Pentair Mastertemp error

    Spoke with a technician from Pentair today and he guided me through a few troubleshooting steps. Verified voltage to Ignitor=good, Resistance should be 40-70 ohms=my ignitor was reading an open. Ordered new ignitor today. I will update when working. Pentair customer service is great, if you are handy with a multimeter they will guide you through each step of the process.
    Mastertemp 400 NG
    10,000 gallons IG Freeform, 8ft raised spa,pebble finish
    FNS 60 Sqft DE Filter,2HP Whisperflow for Pool/Spa filtering
    2HP Whisperflow for Spa jets
    1HP Whisperflow for Waterfall
    Master Temp 400,000 Btu Heater

  3. Back To Top    #3

    Join Date
    May 2010
    Location
    Yuma AZ
    Posts
    67

    Re: Pentair Mastertemp error

    Replaced HSI-(Hot Surface Ignitor) today and heater is working great.
    Total time of about 30 minutes from start to finish.
    Part number 77707-0054 Igniter and Gasket kit heater. Cost 40.00 shipped to my door
    10,000 gallons IG Freeform, 8ft raised spa,pebble finish
    FNS 60 Sqft DE Filter,2HP Whisperflow for Pool/Spa filtering
    2HP Whisperflow for Spa jets
    1HP Whisperflow for Waterfall
    Master Temp 400,000 Btu Heater

  4. Back To Top    #4

    Join Date
    Sep 2014
    Location
    Waterford
    Posts
    3

    Re: Pentair Mastertemp error

    This post described my problem perfectly, and helped me order the correct part. New part is installed, and pool heater is now working again.
    Caribbean Fiberglass Pool (16'x40'x6'6") 17,000 gallons
    CircuPool Si30-Plus Salt System
    Master Temp 200,000 Btu Heater
    1HP Superflo pump
    Polaris 360 pool cleaner

Posting Permissions

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