Westinghouse WGR-076 Series Installation, Start-Up, Maintenance, Parts, Warranty page 35

Code Short Description
E07 Flue Temperature Too High
Remote Reset Volatile
E13
Lockout
E34 Low Main Power Supply
Outdoor Temperature Sensor
E39 Error
(When Enabled)
Flue Temperature Sensor
E53
Error
E64 Blocked Flue
Table 18 - Blocking Error Codes
Code Short Description
F01 Ignition Lockout Indication
F02 False Flame Indication
Control Board Blocking Errors
Long Description
The flue temperature has met /
surpassed the maximum limit.
The FIVE RESETS counter has
been reached.
The main power supply is too low
(below 75 VAC) to properly power
the water heater.
The outdoor temperature sensor
is out of normal operating range,
meaning the sensor is either
open or shorted for more than 3
seconds. The E39 code will flash
and alternate with the DHW
set point, ensuring the system
continues to supply hot water.
The flue temperature sensor is
out of normal operating range,
meaning the sensor is either open
or shorted.
The control detects a blocked flue
condition.
Control Board Blocking Errors
Long Description
The control senses no flame after
three ignition attempts.
The control senses a flame signal
when there is no heat demand.
Corrective Action
1. Is the tank full of water? This error code will appear if the
tank is dry-fired.
2. Measure actual Flue temperature.
3. Use an ohmmeter to check resistance on flue temperature
sensor.
4. Replace sensor if it does not pass the resistance test.
5. If Flue temperature does not return to normal within 15
minutes, this error shall become an F07 fault code.
6. Error will clear automatically if Flue temperature returns to
normal within 15 minutes.
Service and repair unit per displayed error code. Turn the main
power supply to the unit off and back on to clear out the error
code.
1. When main power is brought back to a normal state (over 75
VAC), water heater will resume normal operation.
2. Measure AC mains.
1. If the Outdoor Temperature Sensor returns to normal
operating range, this error code will clear on its own. Normal
operating range of the sensor is -40
2. Check the Outdoor Temperature Sensor. Ensure it is properly
wired and connected, and that there are no breaks, cuts, or
other visible issues with the sensor wire.
3. Use an ohmmeter to check resistance on the outdoor
temperature sensor.
4. Replace Outdoor Temperature Sensor if it fails the resistance
test.
1. Check the Flue Temperature Sensor. Ensure it is properly
wired to the control, and that there are no breaks, cuts, or
other visible issues with the sensor wire.
2. Use an ohmmeter to check resistance on flue temperature
sensor.
3. Replace Flue Temperature Sensor if it does not pass the
resistance test.
1. Check the Flue termination. Ensure there are no blockages
or obstructions in the Flue.
2. Check APS switch. Ensure it is properly wired to the control,
and that there are no breaks, cuts, or other visible issues with
the wiring.
3. Replace APS switch.
Corrective Action
1. Is the gas turned on to the water heater?
2. Manually reset the water heater.
3. Observe water heater operation. If fault code occurs again:
4. Check for stable gas pressure.
5. Check ignitor cable connections.
6. Check ignitor cable ground.
7. Replace cable.
8. Check spark gap between spark electrode and burner.
9. Replace ignitor.
1. Visually check for flame through the sight glass.
2. Manually reset the water heater.
3. Observe water heater operation. If fault code occurs again:
4. Check ignitor cable connections.
5. Check ignitor cable ground.
6. Replace cable.
7. Replace ignitor.
35
o o
F – 122 F.
WHL-001 Rev. 3.16.15