HotTubNarwhal Posted July 25, 2021 Report Share Posted July 25, 2021 So we are trying to start our hot tub after a couple of years of it being off. We filled it with water to prime it, we tried turning it on on the fuse panel. We get a code of the top screen panel saying “Pr” and the heater is making a clicking sound like a turn signal in a car. VS501 Balboa IMG_3394.MP4 Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted July 25, 2021 Report Share Posted July 25, 2021 Verify incoming voltage. Does it show anything other than "pr"? Does "pr" go on and off with clicking? Quote Link to comment Share on other sites More sharing options...
HotTubNarwhal Posted July 26, 2021 Author Report Share Posted July 26, 2021 4 hours ago, RDspaguy said: Verify incoming voltage. Does it show anything other than "pr"? Does "pr" go on and off with clicking? So it stays on the screen constantly as the heater clicks. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted July 26, 2021 Report Share Posted July 26, 2021 Check voltage to the spa. Unplug topside and turn on power. Test sensors with ohm meter. Remove board and check for burns/debris. Buy new vs501 control system. Steps 2, 3, and 4 are optional. Quote Link to comment Share on other sites More sharing options...
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