Failed run capacitors on aging condensers
Why it happens here
Upstate summers push condensers past 120 degrees inside the cabinet, and heat is the number one killer of electrolytic capacitors. In Monaghan, where many systems are 12 to 20 years old, we replace capacitors on nearly every other no-cool call.
Our approach
We test capacitance with a multimeter against the rated microfarad value, replace with a matching capacitor, and check the contactor and compressor amp draw at the same time so we are not back next month for a related failure.