Soakingfool Posted August 28, 2023 Report Share Posted August 28, 2023 2003 Utopia. The circ pump is fairly new, the new black model which replaced the blue one. I recently replaced the trombone style heater and the 30 amp and 20 amp GFCI breakers (as the 30 amp failed mechanically). There is water in the circ pump and when I loosen the connection to the outflow hose plenty of water will start to leak. The pump is quietly vibrating. But no bubbles from the jet from the circ pump. Both jet pumps are working as is the "clean button". However the TEMP light keeps flashing and the spa won't heat. Have tried running it with no filter, but no change. Could there be an air lock between the circ pump and jet? If so, what's the fix? I'm good with a multimeter. Can someone help save me from the fickle hot tub gods? Thanks, Rich Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted September 1, 2023 Report Share Posted September 1, 2023 Air lock or bad pump. Releasing enough water at the circ pump will clear an air lock, but it takes more than you'd think. Post pics of equipment area. Quote Link to comment Share on other sites More sharing options...
Soakingfool Posted September 12, 2023 Author Report Share Posted September 12, 2023 Thanks much, sorry for the late reply (family issues), I'll get photos! Rich Quote Link to comment Share on other sites More sharing options...
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