Window unit started triping inline-breaker even when unit was turned off. Bypassed inline and unit works fine, except for a strong arc when pluging in this 220 volt AC. Now compressor cycles, etc. however the arc-ing persists when plugging in the AC, also a little beep ocurs, and again the unit is turned off during these checks.
The arc is like that of a cap discharging?
Any ideas?
Thanks,
Bill