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-   -   Goodman heat pump does not switch on for heat and the AC blows A/H fuses. (https://www.askmehelpdesk.com/showthread.php?t=346320)

  • Apr 26, 2009, 01:53 PM
    GoodmanVA
    Goodman heat pump does not switch on for heat and the AC blows A/H fuses.
    My Goodman heat pump, model GSH130361AD, heat does not switch on (outer unit). When it first went out, the Honeywell T8411R t-stat digital display went blank. First, I tried replacing the stat with other, but they only accommodated 5 wires. Wiring to the Honeywell was 7 wires. I'll come back to this later.

    Next, I found out the fuse on the air handler circuit board was blown. I replaced the 3W fuse and then tried to rewire the Honeywell t-stat.

    After wiring the Honeywell stat, the air handler and aux heat would kick on and heat the house to the set temperature. However, the outside unit (compressor) would never kick in... ever. Also, I tried the AC and it blew the 3W air handler fuse.

    None of the breakers were affected, either on the air handler or the main panel. There is no separate breaker on the outside unit.

    My latest wiring on the Honeywell t-stat:

    Stat Marking-Wire Color
    G-Green
    C-Blue
    R-Red
    Y-Yellow
    W2-White
    B-Black
    O-Orange

    Wires to Air handler
    Color (markings on circuit board, if any)
    Green
    Brown/Black
    Blue (C)
    Red (R)
    White

    Wires from house to outside unit
    Color (unit terminal marking)
    Blue (C)
    Red (R)
    White (W2)
    Orange (O)
    Yellow (Y)

    IS MY WIRING ON THE STAT CORRECT?

    Lastly, I found no reset switch on the outside unit. Read that the capacitor (the silver canister?? ) may have burnt out. SHOULD I CHECK IT? HOW?

    ANY IDEAS? MANY THANKS!
  • Apr 26, 2009, 02:00 PM
    Joshdta

    Sounds like you have a bad contactor outside, this would cause the cooling not to work and the fuse to blow
  • Aug 20, 2011, 09:45 PM
    gator1552
    My goodman heatpump blows a fuse when switch from heat to ac
  • Aug 20, 2011, 09:48 PM
    gator1552
    Disregard the earlier post, my ac runs fine but when switch to heat it blows a fuse 3 amp
  • Apr 29, 2012, 01:46 PM
    mugzydad
    My goodman air unit popped the breaker. I waited until until cooled down and then turned breaker back on. The heat works fine but the air still not cooling. The unit is less than 1 year old, is a 15 seer. Where do I find reset switch for this unit?

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