Results 1 to 6 of 6
  1. #1
    mshynson's Avatar
    mshynson Guest

    Grunaire F1 error code



    i have two 121-hx units. a few months ago i got a F1 error code on one. replaced the PFC board and problem solved. now i have the same code on the other unit. replaced the PFC but still have the F1 code. all connections look good. any ideas? these units are great when they work......



  2. #2
    mshynson's Avatar
    mshynson Guest

    Re: Grunaire F1 error code

    still broken. any ideas?

  3. #3
    Join Date
    Aug 2006
    Location
    england
    Age
    49
    Posts
    3,874
    Rep Power
    46

    Re: Grunaire F1 error code

    Swap board from good unit to one with fault code, if code goes, new board faulty.
    If code stays look for another problem.
    We don't get that make over here, what is an f1 code for?

  4. #4
    dante805's Avatar
    dante805 Guest

    Re: Grunaire F1 error code

    Just got the same code. F1. Did you ever figure it out? Checked all the connections to the unit. Is there a reading or easy way to figure out if its the PCB board? There seems to be 3 boards which one is the PCB? I have a spare unit so can exchange parts pretty easily. Thanks.

  5. #5
    alive2live's Avatar
    alive2live Guest

    Re: Grunaire F1 error code

    F1 usally means the main boards in the outside unit is bad.
    Amcor units were notorious for F1 outside PC board failures. Grunaire is made by the same company.

  6. #6
    alive2live's Avatar
    alive2live Guest

    Re: Grunaire F1 error code

    Meant to say, it is the main pc board in the outside unit that likely burned out.

Similar Threads

  1. Grunaire GMU028HXB-4 wiring question???
    By danoseven in forum Technical Discussions
    Replies: 5
    Last Post: 16-07-2010, 12:25 AM
  2. Grunaire Mini Split Operating PSI
    By drose300 in forum Technical Discussions
    Replies: 11
    Last Post: 09-07-2010, 05:31 PM
  3. Grunaire Mini-split
    By kevperro in forum Heat Pumps
    Replies: 10
    Last Post: 07-07-2010, 10:26 PM
  4. Grunaire HX 19 Seer mini split
    By Sturgis in forum Trouble Shooting
    Replies: 1
    Last Post: 29-06-2010, 10:58 PM
  5. grunaire hx inverter mini split
    By oatelek in forum Trouble Shooting
    Replies: 1
    Last Post: 26-01-2010, 12:38 AM

Posting Permissions

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