Goodman Heat Pump Won't Defrost

Goodman Heat Pump: GS13

Re: Won't Defrost

The Goodman GS13 Heat Pump uses a Time & Temperature Defrost Board.


Qty Possible Causes:
1 Bad or Disconnected Defrost Stat
Bad Defrost Board
Stuck Contactor
Low Refrigerant Charge
Bad Cond Fan Motor / Capacitor
Mis-Located Defrost Stat
Stuck Reversing Valve
Defrost Timer Set Too Long

CHECKOUT:

1. Check Operating Status


2. Check Fan Motor


3. Check Refrigerant Charge

Hook-up refrigerant gauges to the pressure ports on the unit.

Normal Pressure Range
Refrigerant 0-30 Deg O/D 30-50 Deg O/D
R-22
  • 20-40 Suction
  • 150-225 Discharge
  • 40-75 Suction
  • 170-260 Discharge
R410A
  • 70-100 Suction
  • 250-320 Discharge
  • 100-135 Suction
  • 250-375 Discharge

4. Check Defrost Board




Article ID: 110
Last updated: 26 Jan, 2023
Revision: 15
Equipment -> Heat Pumps -> Goodman -> GS13 -> Goodman Heat Pump Won't Defrost
https://ghac.makekb.com/entry/110/