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56
WHL-015 REV. 5.20.16
Er:61
Fan Speed Feedback
Signal Abnormal
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check the connections to the fan. Ensure all are secure.
2. If the fan does not rotate during the ignition sequence, check for AC8V~26.5V power at the fan
connection. If AC8V~26.5V power is present at the control, replace the fan. If the blower does not have
AC8V~26.5V power, check power at the control. If AC8V~26.5V power is not present at the control,
replace the control.
3. If the problem persists, replace the main control.
Error Code
Error Code Description
Possible Remedies
Er:66
Mixing Valve Initial Value
Error
(Mixing Valve Cannot
Return to Initial Position)
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the appliance.
2. Check wiring connections to mixing valve. Ensure all are secure.
3. Replace mixing valve.
4. If the problem persists, replace the main control.
Er:68
Mixing Valve Operation
Error
(Mixing Valve Stuck in
Initial Position)
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the appliance.
2. Check wiring connections to mixing valve. Ensure all are secure.
3. Replace mixing valve.
4. If the problem persists, replace the main control.
Er:70
Register, Ram, Rom, I/O
Port, AD Abnormal,
Important EPROM Data or
Safe Data Abnormal
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Turn power OFF and ON at the main power switch internal to the appliance.
2. If the problem persists, replace the main control.
Er:72
Flame Signal Detected
before Ignition
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check the appliance cover. Ensure it is secure. Flame detection sensor can detect an external light
source.
2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more
than 2.5DC before ignition, less than 2.5DC after ignition.
3. If the problem persists, replace the main control.
Er:76
Poor Communication
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check connections from main control to display panel.
2. If the problem persists, replace the display and/or the main control.
Er:80
Low Water Level Sensor
(Low Water Level
Detected Four (4)
Consecutive times)
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Ensure all valves are open to the appliance and there are no leaks.
2. Ensure all air has been purged from the system.
3. Check wiring connections to low water level sensor. Ensure all are secure.
4. Check low water level sensor resistance. If resistance is zero, replace the sensor.
5. If the problem persists, replace the main control.
Er:81
Low Water Level Circuit
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Ensure all valves are open to the appliance and there are no leaks.
2. Check wiring connections to low water level sensor. Ensure all are secure.
3. Check low water level sensor resistance. If resistance is zero, replace the sensor.
4. If the problem persists, replace the main control.
Er:85
Freeze Protection
(Appliance has detected
water temperature below
34
o
F (1
o
C)
This Error Code will go away when the freezing condition is remedied.
If Error happens again:
1. Ensure appliance is located in a mechanical room protected from freezing conditions.
2. Ensure all valves are open to the appliance, there are no leaks.
2. Check wiring connections to low water level sensor. Ensure all are secure.
3. Check low water level sensor resistance. If resistance is zero, replace the sensor.
4. If the problem persists, replace the main control.
Er:94
Exhaust Sensor detects
Vent Temperature is
Greater than 190
o
F (88
o
C)
This Error Code will go away when the condition is remedied.
If Error happens again:
1. Check if dip switch High Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.
2. Check exhaust temperature sensor. Ensure connections are secure.
3. Check sensor resistance. If resistance is zero, replace the sensor.
4. Check exhaust vent for blockage.
5. If the problem persists, replace the control.
6. If the problem persists, replace the heat exchanger.
Table 26
– Error Codes with Linked Components, Effects, and Actions
Содержание WBRC**140F
Страница 2: ...2 WHL 015 REV 5 20 16 ...
Страница 42: ...42 WHL 015 REV 5 20 16 Figure 29 140F Model Electrical Wiring Diagram ...
Страница 43: ...43 WHL 015 REV 5 20 16 Figure 30 140F Model Ladder Diagram ...
Страница 44: ...44 WHL 015 REV 5 20 16 Figure 31 199F Model Electrical Wiring Diagram ...
Страница 45: ...45 WHL 015 REV 5 20 16 Figure 32 199F Model Ladder Diagram ...
Страница 86: ...86 WHL 015 REV 5 20 16 ...
Страница 87: ...87 WHL 015 REV 5 20 16 ...
Страница 88: ...88 WHL 015 REV 5 20 16 MAINTENANCE NOTES ...