Hi, I have Minimax 400 pool & spa heater that stopped working this weekend. Though the power light was coming on, the pressure light was not. So I removed the rusty pressure switch and jumped the wires with a paperclip. Sure enough, the heater starts up now. But how can I be sure the issue is just the pressure switch, and not actually with the water pressure? If the spa water heats up, does that mean the pressure is fine and I just need to replace the switch?
Thanks!
Thanks!