I spray some contact cleaner, and it help it. So I know I in the right area. Of it still need to be replace.
If I turn off the circuit breaker, and I know high voltage is coming into to it. I was going to use muti-meter to check voltages before I start taking it part. What else should I becareful of be for removing it?
I notice the wiring issue too. I had plan repairing the connection, once I replace the part.