Do you mean you have to go into your BCC cabinet and reset the small grey 50 amp cct breaker on the circuit board a few times? This cct breaker connects to the 12VDC charge feed connection from your converter. So something is causing the cct breaker to trip.....drawing too much current from the battery charger. Have you tested the specific gravity of each cell in your coach batteries and chassis battery recently? Have they ever been replaced? This might be a good starting point.
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