Thermostats & High Limits
Mechanical High Limits and Thermostats are used in older hot tubs with mechanical power packs. A High Limit is a safety feature that keeps the hot tub from over heating when the temperature normally reachs 108+ degrees. This is caused by a faulty mechanical thermostat that controls the temperature of the hot tub water. Please do not enter a hot tub if you have a faulty high limit or thermostat as hot water above 104 degrees can cause you harm.