Service Manual

69
Troubleshooting
Resetting Error Codes
WARNING
The following procedure is for service and installation personnel ONLY. Resetting lockout conditions
without correcting the malfunction can result in a hazardous condition.
If an error code is displayed (except for 4, low flame sense current), the water heater will be in a Lockout
Condition with the water heater display showing the error code number and “Service Needed” in the status
section of the display window. Error codes 62 (maximum number of retries detected) and 63 (maximum
number if ignition recycles detected) are Soft Lockouts in which the control can be reset in the User Mode by
pressing the lower right button under Lockout Reset, shown in the lower right portion of the display. The control
will also go through 3 attempts to relight the burners every hour in the soft lockout condition.
All other error codes will put the water heater into a Hard Lockout condition, in which the water heater will not
operate and cannot be reset in the User Mode. To reset a Hard Lockout, first enter the Service Mode described
earlier by pressing both the Temperature Up and Select buttons at the same time for 3 seconds. Then press
the lower right button under Lockout Reset in the water heater display and hold for 3 seconds.
Resetting Error Codes in Hard Lockout Condition
69