replying to harry , shadow wrote:
Thanks for all the input. Sorry for starting a few arguments.
Our fan motor uses a dual run capacitor. It was all rusty with something that
looked like it could have been a leak to one side. Could also have been just
corrosion on the outside too - hard to say. The unit is at least 13 years old &
we've owned the house for 8 years - it's probably all the original parts because
we haven't had any problems with the outside unit until now. (Yes, I know we're
due for an entire replacement - would like to make it until fall when the
temperatures are more comfortable)
I agree that it could also be the fan motor - bought a new one just in case.
Anything more than that, we'll wait for our HVAC friend to get back.
But I'm not ruling out the capacitor alone - on Friday, it was definitely just
the fan not working because the return line was so hot. This morning, I don't
think the compressor was running either because the line was room temp. To me,
that would mean that either the capacitor didn't kick on the compressor or the
compressor overheated & shut off. Again, I'm not a pro.
I was mostly curious about why pulling the disconnect was necessary to make
things start working again. The fuses are old - I bet they're the originals -
but they look OK. None of the copper on either the fuses or the connections
looks corroded or anything.