A/C breaker keep tripping - WITHOUT the A/C on!
The current situation is that I cannot flip our air conditioner's 20-amp breaker on without it immediately tripping (even while the thermostat is off). The thermostat & every other 120-volt appliance & outlet works fine.
Before this, there was a period of a few days where we could get the A/C to come on for a few minutes but it would inevitably trip (along with the paired 30-amp breaker).
Before that, it worked fine. (Up until last summer when we had to have the capacitors replaced).
So quick question: should I replace the capacitors again? I've done a visual inspection and they look fine. I'm not aware whether faulty capacitors could make the circuit breaker trip so quickly, even when the thermostat is off.
(Another possibly pertinent detail: a few campgrounds ago, before I noticed any of these A/C symptoms, I noticed I could feel an electrical charge in the SKIN OF THE AIRSTREAM. Rivets, the frames around the door & storage boxes, especially tingled. It kinda freaked me out, but I only noticed it as we were packing up to leave, and as soon as we disconnected from shore power it went away. And we haven't noticed it again since.)
I'm going to the city tomorrow so wondering whether I should plan to pick up some capacitors or whether I've got a different kind of problem (wiring?) on my hands.