samco Posted August 14, 2021 Report Share Posted August 14, 2021 Having a problem with my calspa. Came out this morning and it was offline, breaker would instantly pop. Narrowed it down to the connections from the board to the heater. Using port SH7 on the circuit board, I could connect to either heater port and it doesn't trip. If I connect either to the SH6 port on the circuit board, it trips instantly. So if I'm reading this correctly, the heater is fine but there is some problem with that port on the circuit board? Is there anything I can do to further troubleshoot this or is this a "need new board" situation? Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted August 15, 2021 Report Share Posted August 15, 2021 Pics? I have no idea what "port" you are talking about. Boards don't trip breakers, it's the heater. If these "ports" are the heater terminals, one leg has power even when the heater is off. You may also have a bad relay on the board, often a result of a heater short. You can test voltage across the heater terminals with heater circuit turned on (but disconnected) to check. Quote Link to comment Share on other sites More sharing options...
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