Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: Hayward Heat Pro Fan Cuts Off - HI error

  1. Back To Top    #1
    Aquatica's Avatar
    Join Date
    Jun 2010
    Location
    Nassau, Bahamas
    Posts
    514

    Hayward Heat Pro Fan Cuts Off - HI error

    Hi guys,

    got a heat pump and when it starts up the fan runs for like 5 seconds and then cuts off. The error is: HI

    Anyone have any idea why the fan cuts off? Everything inside seems to be ok. Had an a/c guys check it out.

    Any help is much appreciated. Thanks!

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: Hayward Heat Pro Fan Cuts Off - HI error

    This is from the manual, page 17,
    3. If diagnostic code “HI” is displayed, this may indicate that an insufficient water flow condition exists. Check that the pool pump strainer basket, skimmer basket and filter are clean. After checking these items, if the “HI” indicator is still displayed, contact your original equipment installer or service provider.
    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

  3. Back To Top    #3
    Aquatica's Avatar
    Join Date
    Jun 2010
    Location
    Nassau, Bahamas
    Posts
    514

    Re: Hayward Heat Pro Fan Cuts Off - HI error

    Quote Originally Posted by Bama Rambler
    This is from the manual, page 17,
    3. If diagnostic code “HI” is displayed, this may indicate that an insufficient water flow condition exists. Check that the pool pump strainer basket, skimmer basket and filter are clean. After checking these items, if the “HI” indicator is still displayed, contact your original equipment installer or service provider.
    Thanks. Yes already read this. Backwashed the filter. We have good return from the jets so cant be flow.

  4. Back To Top    #4
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: Hayward Heat Pro Fan Cuts Off - HI error

    Did you check the rest of the troubleshooting info? If so, it's likely a bad sensor.
    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

  5. Back To Top    #5
    Aquatica's Avatar
    Join Date
    Jun 2010
    Location
    Nassau, Bahamas
    Posts
    514

    Re: Hayward Heat Pro Fan Cuts Off - HI error

    Quote Originally Posted by Bama Rambler
    Did you check the rest of the troubleshooting info? If so, it's likely a bad sensor.
    yes checked it. we use an a/c guy to repair these. on an island. no support from hayward service dept.

    I'm thinking a sensor also but the a/c guys checked that. will recheck with them. Thanks!

  6. Back To Top    #6
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: Hayward Heat Pro Fan Cuts Off - HI error

    That water flow sensor is actually a pressure switch. If it's not actuating under the correct pressure that will cause that error.
    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

  7. Back To Top    #7
    Aquatica's Avatar
    Join Date
    Jun 2010
    Location
    Nassau, Bahamas
    Posts
    514

    Re: Hayward Heat Pro Fan Cuts Off - HI error

    Quote Originally Posted by Bama Rambler
    That water flow sensor is actually a pressure switch. If it's not actuating under the correct pressure that will cause that error.
    Thanks Dave. We have the a/c guys coming back today to blow out the tubes/coils..I'm guessing this pressure sensor is in the coils and could be dirty with scale. Just guessing. I don't know much about the inside of these heaters. Will let them check the pressure sensor. Thanks again.

Posting Permissions

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