So I had a 2nd tech come out. He was very knowledgeable and said the
system was operating normally (of course) and was not the control board.
He recommended swapping out the two Nest with original Honeywell basic
thermostats and see if the issue cont...
I'm having the same problem...kinda. I have a Carrier FB4CNF with heat
pump and 2 Nest thermostats that are installed correctly and have been
working fine. When I turn the temp down, compressor kicks on and
thermostat shows cooling, but blower won’t ...
