I've had a problem with A/C at my parent's house, currently
unoccupied. We've had some temperatures over 95F and some power
outages from storms. The thermostat has a few-minute delay.
The thermostat was set on 78F. When I went over there late Friday
afternoon, the compressor was not running and it was 89F inside. I
cut off the curciut breakers and turned them back on to see if it
would reset it. After a few minutes, nothing had happened.
I checked the pan under the air handler and it was dry.
Then I saw that the batteries in the thermostat were low. I cut off
the unit at the thermostat and replaced the batteries. I turned it
back on, and in a few minutes it came on and started cooling.
This made me suspect the thermostat, but read on...
I went back Saturday afternoon and again the compressor was not
running and it was 90F inside. I cut the circuit breakers off and
back on and switched the thermostat to off and then back to cool. In
a few minutes it came on.
I went back Sunday and again today (Monday) and it is still working.
Any ideas of what the problem is/was? (At first I suspected the
thermostat, but now I don't know.)