Mod# 52PQB515301RE Ser# 1503X43165
Units are 2 years old the last cold spell we had here -5 to -10 deg units were going from heat punmp mode to elect. heat, here is where I think the problem started.
Problem no heat call,found that K2 relay will not energize with K2A1 relay. The back of board on the solder line to the K2 relay shows signs of burning, 4 boards on diffrent units in 1 week. Carrier has yet to get back with me on this. New Boards have been working ok owner is pissed that he has to pay for boards, has anyone else had this problem before