- Locate the spa's high-limit reset. This is a red button found on many spa packs. ...
- Press the high-limit reset button. ...
- Turn on your spa and observe its operation. ...
- Flip the breaker panel switch on or press the reset button on the GFCI outlet to restore power.
Where is the reset button on a Watkins No Fault heater?
https://www.youtube.com/watch?v=88IPbifwp2s
Why is my Hotspring hot tub not heating up?
Why is my spa not heating? Make sure: The water is at a level which covers all of the jets as this affects the water flow through the heater. The filter has been cleaned within the last four weeks by soaking it in BEAR STRIP FILTER CLEAN and that filter is not older than 18 months.