affenqld wrote:
j.p.f. wrote:
couldn't a large charged capacitor show a presence of electricity with all the power shut off?
I am sorry , i am not mechanically inclined , and i have no idea of what is a capacitor is ....aaarrrghhhh
What i know is that electricity runs in the wire of the compressor while all breakers are off , had to unplug trailer from shore power for them to work on the A/C
They have checked if power comes and leaves the breakers when they are off , and for sure they can read power in the breaker box after everything is turned off ..
Puzzling for me because i cannot comprehend anything with power ..lol.
More puzzling for them because it is their field of work ..lol.
1. IF the only way to get NO 120 power to the AC compressor is by disconnecting the Shore Power---SOMETHING is WAY WRONG WITH YOUR 120 SYSTEM. WITH THE 20 AMP AC BREAKER OFF THERE SHOULD NOT BE 120 POWER TO THE AC AT ALL. Regardless of any other box or 120 distribution system in your RV. If you have 120 power to the AC with the 20 amp breaker off that is a major problem.
2. The burnt wire if ON the AC upper Circuit Board and the black compressor relay, that usually points to a BAD locked up or shorted compressor
3. The statement "Power Surge". HOW do you determine that to use that statement. HOW do you "see" or hear a Power Surge??????? Especially with the power system OFF? If the burnt wire is hitting a neutral or ground, then I could understand a noise. BUT, they should have cut the offending wire OFF and retested.
4. Last, IF the Compressor relay on the upper Control board is burnt/ fused CLOSED, then yes, you will get constant 120 power to the compressor and if the compressor is bad, will eventually burn/melt that wire. The Compressor failed and heated up and fused the Compressor relay closed and the heat build up melted the wire. BUT NOT IF THE 20 AMP BREAKER IS OFF. Doug
