JippAlbert Posted November 30, 2021 Report Share Posted November 30, 2021 Hello - I just resurrected a hot tub that has been winterized for at least 3 seasons in a garage. I just had this tub moved to my location and I have it powered up running- The tub runs I have bubbles, circulation, lights but no HEAT. I tried to enter cleaning mode but I guess with the flashing it wont enter that mode. What additional details can I provide. What do I do next? Quote Link to comment Share on other sites More sharing options...
ratchett Posted November 30, 2021 Report Share Posted November 30, 2021 Could be a failed sensor (thermistor) putting your spa into a failsafe mode (circulation pump running to keep water flowing through the filter, but not activating the heater). My 2 year old Hotspring Jetsetter had a failed thermistor and basically the same symptoms (except my lcd screen told me it was in protect mode and to call the dealer for service) 5 hours ago, JippAlbert said: I tried to enter cleaning mode Clean mode simply runs the jet pump for 10 minutes and then shuts it off. 5 hours ago, JippAlbert said: What do I do next? If you have a multimeter you can test the impedance of the thermistor to see if it's reading in the right zone (don't quote me but I think it's in the 10k to 15k range, but I might be wrong). They're cheap and easy enough to replace. I believe there are two temperature sensors on your spa, so you might as well replace both while you're at it (if one failed, the other one has a higher probability of failing in the near future as well). Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted December 2, 2021 Report Share Posted December 2, 2021 Caldera uses a pressure switch, which is probably junk after 3 years dry. Post a pic of the circuit board, wiring diagram, and equipment area. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.