Hi, I have a 13 SEER Rhuud heat pump (2003 model) that is a dual fuel(LP) When it was put in the LP was set to kick in @ 35 degrees but here recently about half the time it runs at any temp, the LP kicks in. I am just asking what are the most likely suspects for this behavior? It has had no feon added from the original day but was checked 3 years ago and was at full charge then.
Thanks
MC
Thanks
MC