I live in CT, which is a chilly 26 degrees tonight. I have a Carrier heat pump which in which the outdoor fan was replaced just over 3 years ago...it had burned out.
Ok, so I have the thermostat set on 68 and noticed the system is just running and running and running but not getting up to the temp setting. Air is blowing from the registers just fine, so I went outside and checked the outdoor unit and even though the system was running, the fan wasn't turning. That didn't seem right, so I went inside and turned down the thermostat to 66, waited 5-10 minutes and then turning the thermostat back to 68. I rechecked the outside unit and now the fan is running and the air from the registers seems warmer.
My question is, shouldn't the outdoor fan ALWAYS be running when the system is on? Could it be over heating and my shutting it off for a bit helped to cool it down and then it was working ok again?
P.S. I notice a lot of ice build up on the bottom 1/3 of the outdoor unit's compressor (at least that's what I think the part is called). Could that be an indication of a related problem? Or is that normal?