wrangoth
17-02-2010, 01:14 PM
When the unit goes into defrost there are issues happening.
The Y circuit cuts out. Compressor goes off.
The Outdoor Fan goes off like normal.
The Defrost board has an internal relay that has two normally open switches. One for EH and the other for RVS. This relay just starts clicking.
It will continue indefinately or until you turn off power and turn back on.
The unit will run fine in Heat Mode or Cool and if you jump R directly to RVS while in Heat Mode it will switch and no problems with losing the Y.
Things we have done.
1. We have replaced the Defrost Board thinking it was bad.
2. The problem was still present. We troubleshooted and decided to try changing the board again thinking maybe we got a bad one.
3. Same thing continued.
Any Idea's?
Wrangoth
The Y circuit cuts out. Compressor goes off.
The Outdoor Fan goes off like normal.
The Defrost board has an internal relay that has two normally open switches. One for EH and the other for RVS. This relay just starts clicking.
It will continue indefinately or until you turn off power and turn back on.
The unit will run fine in Heat Mode or Cool and if you jump R directly to RVS while in Heat Mode it will switch and no problems with losing the Y.
Things we have done.
1. We have replaced the Defrost Board thinking it was bad.
2. The problem was still present. We troubleshooted and decided to try changing the board again thinking maybe we got a bad one.
3. Same thing continued.
Any Idea's?
Wrangoth