I have an old (1999) Hot Spring tub that won't heat. We turn the temp down during the week to 85, then turn up on Friday to enjoy the weekend use. It has been turned down since the first week of Feb, too cold to use it. This past Thursday I turned it up to 104 like usual. Friday afternoon I went to check chems for Friday night fun, and it was cold. For some strange reason, the tub won't show the temp, but has ready light when its up to temp.
Friday afternoon I opened the control cover, and heater power light was on, no blinking lights or warnings. Water level was a little low, not below filters, so I topped it off. I reset the breaker and let it be.
Saturday it seemed to heat up to 95, so I thought all was good. Later Sat I checked again, and the temp was lower. I reset the breaker again, cleaned filters (not too bad), and verified the circulation pump was running.
The water in the heater hoses did feel warm, and I thought it might be good to go.
Sunday it was cold again 88. I pulled the filters and reset the breaker. Sunday evening it wasn't heating. Was going to bring meter from work, but forgot. Will bring home tonight to check heater.
I believe @RDspaguy just got done rebuiling the same tub.
Anything else to check?
Friday afternoon I opened the control cover, and heater power light was on, no blinking lights or warnings. Water level was a little low, not below filters, so I topped it off. I reset the breaker and let it be.
Saturday it seemed to heat up to 95, so I thought all was good. Later Sat I checked again, and the temp was lower. I reset the breaker again, cleaned filters (not too bad), and verified the circulation pump was running.
The water in the heater hoses did feel warm, and I thought it might be good to go.
Sunday it was cold again 88. I pulled the filters and reset the breaker. Sunday evening it wasn't heating. Was going to bring meter from work, but forgot. Will bring home tonight to check heater.
I believe @RDspaguy just got done rebuiling the same tub.
Anything else to check?