So just finished decontamination and refilled the hot tub, balanced, bromine, all that good stuff. But no heat. . My in-laws (who owned the spa - hasn't been moved, we're buying their house) said it worked when they unplugged it a few months ago. But it doesn't now...
All the jets work, LCD panel works. I can set the temp (so it's not 'locked') but no go. I can see water circulate in it (when jets are off). I unplugged for a couple hours and replugged it back in (manual said this as a suggestion), but nothing.
Tiger River Spa Sumatran model. Roughly 6 years old I'd guess.