Service Manual

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View Previous Error Code continued-
Step 7: 10 seconds after the last button press, the Water Heater Display will revert back to the current error
code display. To exit Service Mode, either wait 30 seconds or press Temperature Up button and Select button
for 3 seconds.
Error Code Definitions
If the water heater has an operating problem, there will be a number in the water heater display with “Service
Needed” shown below the error code number. Note the error code and the definition in the chart below. This
label appears on the control box under the water heater display. The following sections will provide instructions
for servicing each error code.
INTEGRATED CONTROL ERROR CODE DISPLAY
ERROR
CODE
DEFINITION
4
LOW FLAME SENSE CURRENT
6
FLAME SENSED OUT OF NORMAL SEQUENCE (BEFORE OPENING GAS VALVE OR AFTER CLOSING GAS VALVE)
23
FLAME DETECTED BEFORE IGNITION
24
FLAME DETECTED AFTER A HEATING CYCLE COMPLETES
29
PRESSURE SWITCH FAILED TO CLOSE OR OPEN (STUCK OPEN)
32
LOWER SENSOR READINGS FAULTY
57
FLAME ROD SHORTED TO GROUND
58
AC LINE FREQUENCY ERROR - SIGNAL TOO NOISY OR FREQUENCY INCORRECT
59
LINE VOLTAGE TOO LOW OR HIGH
61
DC OUTPUT VOLTAGE UNSTABLE
62
MAXIMUM NUMBER OF RETRIES DETECTED
63
MAXIMUM NUMBER OF IGNITION RECYCLES DETECTED
64
ELECTRONICS FAILURE
65
HIGH WATER TEMPERATURE (OVER 200°F)
IF ANY OF THE ABOVE CODES APPEAR ON THE CONTROL DISPLAY, CONTACT YOUR PLUMBER OR QUALIFIED SERVICE AGENT FOR
SERVICE OF THE WATER HEATER.
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