Shelbel464 Posted December 23, 2019 Report Share Posted December 23, 2019 About a year ago I had to replace the circuit board as the heater arced and burned a hole in the board. Checked it the other day when it wouldn’t hold heat all of the sudden and the same thing happened again! Any thoughts on what might be causing this? Quote Link to comment Share on other sites More sharing options...
ratchett Posted December 25, 2019 Report Share Posted December 25, 2019 Have you replaced the heater? It could be failing causing a short. Allowing too much electricity to flow through that spot on the board until it shorts out. If I were you, I'd be looking at all the wiring down-line from that control board. Check to see if anything has eaten away at the plastic around the wiring, or test the heater to ensure it is running the proper voltage and amperage draw. Although truth be told, I'm no expert in spas so in reality I personally wouldn't take chances with something running high voltage 24/7. I'd hire a spa technician to test everything and figure out whats causing your shorting issue. Quote Link to comment Share on other sites More sharing options...
PreservedSwine Posted January 6, 2020 Report Share Posted January 6, 2020 Unfortunately, that's likely the result of it not being tight enough at that spot, or an issue with the copper strap being damaged. I doubt the amp draw of the heater is too high, but put an amp clamp on it to be sure. Quote Link to comment Share on other sites More sharing options...
Spa Board Doctor Posted January 11, 2020 Report Share Posted January 11, 2020 Likely a loose connection at the 3/8" nuts connecting the strap to the board, heater, or both. Can also be caused by a cold solder joint or fouled relay points. This is a repairable failure. Brandon@spokanespas.com Quote Link to comment Share on other sites More sharing options...
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