Max-E-Therm Pool/Spa Heater
The spa heater does turn on but shuts off after the water temperature gets to about 80 degrees. Our indoor wall unit is set to 100 degrees. Any thoughts on why this would happen?
Could it be the Thermal Regulator?
Check flow first to avoid wasting money. We had a similar issue last year and found that the gas regulator downstream of it broke and the heater was getting too much pressure. Replace that and it worked just fine