jbresee

Hey there! I have a Hotsprings Vanguard. It has a 50 amp GFCI for the heater, and a 20 amp GFCI for the rest. On power up, the main board goes through self test, and the moment the power is applied to the relay board, the 20 amp GFCI trips. I've unplugged the heater, pumps, primary circ pump and salt system, but the 20 amp circuit still trips as soon as the relay board is energized. I've looked closely at the relay board, and see no burn marks or indications of a short or or arc. Any ideas on how to diagnose this further? Thanks! Jim