Hi,
I replaced the water 2 days ago to take advantage of a few days of "warm" weather.
Tub is a Hotspring Vanguard.
After restoring power, tub seemed to be heating up normally. Checked yesterday and it was up to 96 degrees, and figured it would be ready for a soak tonight. Went out to check tonight, and see that it's still at 96 (with a set temp of 100). If I lower the temp past 96, the green light goes off, but I don't hear the click of a relay (think I used to previously hear this.). Temps have been in 30-40 degree range for past few days.
Any troubleshooting suggestions? Read somewhere that my filters could be a cause (filters are a little over a year old).
Thanks!