Service Manual

65
Service Procedure I:
Thermostat Circuit Testing and Replacement (Continued)
Condition: Water heater not operating.
Display shows error code 65, high water
temperature (over 200°F).
Continued from previous page.
Once cause of overheating condition has been
diagnosed and corrected, the control may be reset.
• Reconnect and switch ON power to the water heater.
• Enter Service Mode on the water heater display (see image).
• Press button under “Lockout 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 well below 200°F.
WARNING
DO NOT operate the water heater without verifying
that the overheating condition has been corrected.
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