Originally Posted By: dbush
This post was automatically imported from our archived forum.
The VERY basics on the heat pump is that in addition to the normal hot air, through the reversing valve from the freon, it also uses heat strips. The heat strips when you first turn the heat on goes into an Auxiliary Heat Source, which means that the air is going over the heat strips to heat up while the system is heating up. The Emergency Heat Source is, if I am not mistaken, using almost exclusively the heat strips. It is not a normal mode of operation for the heat pump. If the system comes on and stays in a emerg heat mode, that indicates a problem and should be evaluated.
"LIFE'S TOUGH, WEAR A HELMET"