Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: JANDY PDA - Spa Heater Mode Temp -1

  1. Back To Top    #1

    JANDY PDA - Spa Heater Mode Temp -1

    Our pool is about 2 years old and the Jandy PDA when turning on the spa heater displays the temp however now it is registering -1 and will not allow us to adjust the temp for the heater to heat the spa... Not sure if it has anything to do with the fact that the spa side controls are are also not working.... we can directly turn the heater on but a little silly when this system is only two years old.
    13400 gal plaster in ground, Hayward cartridge filter 175sg ft. 3/4 hp motor @120gpm Hayward Ultra Vac

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: JANDY PDA - Spa Heater Mode Temp -1

    Displaying a -1 usually indicates a bad temp sensor. It can't allow you to adjust the temp if it doesn't know what the temo now is. It's possible that the malfunction is related to the spa side controls but I'll defer to the people more experienced with the Jandy than I.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

Posting Permissions

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