Quote:

---

Originally Posted by T-Top

Jumper R to G at the unit. (do not forget to make sure door swith is closed, use tape) If the fan runs go to the thermostat jumper R to G. If the fan runs from the board and not the t-stat you have a bad wire connection from t-stat to unit. If the fan does not run from jumping R to G at the board it may be a bad board or relay let us know.

---

I jumpered R to G at the unit with the switch taped closed and nothing happened. When I jumper R to G at the T-stat the fan outside comes on, but not the blower motor inside.

So, it might be the board or relay?

This was helpful for me, and we are having the same problems with our unit. Three 3yrs old bank put it in when we bought the house. The fuse blew once replaced due to unit not turning on as well as fans not turning on, but t stat lights up. If we have a short in the low voltage wiring what do we need to do to?
Thank you for your help, you guys are very helpful

The heat on my unit is not working. When I turn the thermostate to the heat position the motor runs but there is not heat coming out.