Both compressors work fine with 120v AC. Running on DC, starts fine but trips CP "A" or main DC breaker after 30 seconds. Disassembled power supplies and visual inspection looks fine. Reseated all connectors. I have circuit diagram but there's not a lot of detail on schematic. Need trouble shooting procedure for oscillator or chatter protector,etc. Anyone been into this circuitry before?
Thanks,
Handee

Pool & Spa - Sta Rite - STA-RITE CONTROL BOARD KIT - 42001-0096S