Why Does a Pool Heater Keep Shutting Off on High-Limit Temperature Switches?
When you notice a pool heater keep shutting off on high-limit temperature switches, it is almost always a sign that the system is protecting itself from a dangerous overheat condition. This safety mechanism is triggered when the water temperature inside the unit’s heat exchanger exceeds a factory-set threshold, typically between 135°F and 150°F. If your…