GSS25KGPABB defrost

[herfdog]

How does one manually test defrost function on this unit?

[16345Ed]

Unplug unit first

Jump J9 and J7-9 on mainboard. 

Plug it back in.

Id first check those two points for the proper ohm reading of approximately 22ohms  (this verifies heater and thermostat aren't open)

Also verify Thermistors in spec

if all that checks out ok you need mainboard  

 

[herfdog]

Very helpful 16345Ed, thank you!