Service Manual

24
24
Service Procedure I:
Thermostat Circuit Testing and Replacement
DO NOT operate water heater without
verifying that the overheating condition has
been corrected.
WARNING
Condition: Water heater not operating. Display
shows error code 80 high water temperature (over
207°F (92.7°C)) (continued from previous page).
• Reconnect and switch on power to the water heater.
• Press button under “Reset” and hold for 3 seconds.
• Set thermostat to the desired setting.
• Water heater will start.
• Monitor temperatures for one complete heating cycle making sure
the maximum tank temperature remains below 207°F (92.7°C).
Once cause of overheating condition has been
diagnosed and corrected, the control may be reset.