11
Adjusting the Thermostat/High Limit Control
This water heater is equipped with one or more adjustable temperature regulating thermostats and a manual reset
high limit control. The following procedures must be performed when changing the temperature of the stored water
or resetting the high limit control.
Before attempting to adjust the thermostat, make sure you read and understand the section of "Water
Temperature Regulation" and familiarize yourself with Figure 12 (below). Any other adjustments must be
made by qualified service personnel.
1. Shut-off the power to the water heater.
2. Remove the access cover and fold the insulation outward and away from the thermostat. Do not
remove the plastic cover.
3. Using a screwdriver to adjust the thermostat pointer, set the thermostat to the desired water temperature.
Be sure the RED reset button (High Limit Control) is properly set: push in firmly to reset.
4. Replace the insulation. Make sure the thermostat is well covered. Replace the access cover.
5. Apply power to the water heater.
ACCESS
COVERS
SINGLE ELEMENT
HEATER
FIGURE 12
THERMOSTAT
150°F
90°F
125°F
SCREW
SLOT
THERMOSTAT SETTING
AND ADJUSTMENT
150°F
90°F
125°F
RED RESET BUTTON
SOLAR SENSOR
