Dual Element Water Heater Thermostat

If the heater produces a small quantity of hot water check the lower thermostat and heating element.

Dual element water heater thermostat.

A dual element water heater is a two thermostat system an upper and lower that heats water in its tank one element at a time. Single phase 240v and 230v non simultaneous dual element water heater thermostat wiring. A dual element water heater uses two heating elements controlled by two separate thermostats. For use in 2 element water heaters replaces apcom style thermostat.

Tod style upper element thermostat. If you detect voltage replace the heating element. The upper thermostat takes first priority heating the water to a preset temperature before powering up the lower thermostat to heat the water to its final temperature. Test the thermostat with a voltmeter and replace it if you don t detect any voltage.

When it reaches a specified temperature.