Recently I found out that my circulating pump only works when you turn up the heat high enough to cause the heat to turn on. The pump is hooked up to a timer and I have it set to come on and run for 2 cycles a day. Last night I manually turned the timer around several times and the pump would not come on. It only came on after I turn the timer to the "run" setting and turned the heater selector up high. As soon as I turn down the heater the pump goes off. Any suggestions on what I can check? Thanks.

 

I'll post a reply to my own message. The problem was the timer on the spa pack. I replaced it and everything works fine now.