Jane` Posted October 11, 2017 Report Share Posted October 11, 2017 I have an older cal spa that works great. Now have SF error code. Jets start and immediately turn off . Heater not working. Any suggestions? Quote Link to comment Share on other sites More sharing options...
danthespaman316 Posted October 12, 2017 Report Share Posted October 12, 2017 I'd guess you have a bad high limit or flow switch. If you have a multi meter you can check the resistance on each. How to instructions can be found with a simple internet search. Quote Link to comment Share on other sites More sharing options...
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