Water Heaters - How to Adjust Temperature Setpoint

Steps to adjust the water heater's temperature setpoint: 

  1. Turn off the power to the water heater.
  2. Remove the jacket access panel(s) and insulation exposing the thermostat(s). The thermostat protective cover(s) should not be removed.
  3. Using a small screwdriver, set the thermostat(s) dial pointer(s) to the desired temperature. Adjust the upper and lower thermostats to the same temperature to maximize hot water availability.
  4. Replace the insulation and jacket access panel(s). Turn on the power to the water heater.