Service Manual

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Sequence of Operation
Lockout Conditions
The system will go into lockout mode for the following reasons:
1. Error Code 62 or 63
a. Control board will go into Soft Lockout if the main burner cannot be lit and fails to prove flame after 3
ignition trials. The water heater display indicates a lockout condition by showing an error code
number (62 or 63) with “Service Needed” in the control display window. Refer to error codes in the
diagnostic section of this Service Manual. In a Soft Lockout condition, the control will wait 60
minutes and then make 3 more attempts to light the main burners. Soft Lockout reset is
accomplished by depressing the lower right button under “Reset” for 3 seconds.
2. Error Code 65
a. If the top of the tank should exceed 200°F (93.3°C), then the high limit control will shut off the
burner and the water heater will go into a Hard Lockout. Error code 65 will be shown in the water
heater display. The control can only be reset in Service Mode, which is detailed in the
Troubleshooting section of this Service Manual.
Connection/Wiring Diagram
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