Quote:
Originally Posted by aerovette
Mid 60s at night and 80s in the day. I have a central unit to provide comfort at both times. That's what it's there for.
Why would the head pressure be high after sitting inoperable all night? Also turning the system off and setting the breaker, doesn't change the head pressure.
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I had thought you going from Heat to A/C or reverse.....and so doing it quickly wood trip up.......
but if NOT, and the system is relaxed before changeout......I DUNNO....
BUTT there is one last guess......you have some gas flow valve that is not working right.....Y is another guess.....