Just wanted to share a success story -
During the last Chicago heat wave, our air conditioning stopped working.
Nothing, furnace (we have those up north) fan worked fine and air was
circulating, but no cooling at all. No response from the compressor. Supply
and control voltages all checked out ok, thermostat worked, etc.
Turned out to be an earwig (small insect) trapped in the contacts of the
compressor controller. Removed said insect, cleaned up the contact points
and we were cool.
Shades of Grace Hopper and the Mark II moth!
Jack