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whl-648 Rev. 001 Rel. 003 Date 10.8.19
53
Error Code
Error Code
Description
Possible Remedies
Er:31
Return Temperature
Sensor Open or Short
This Error Code will go away when operating temperature decreases.
If Error happens again:
1. Check return temperature sensor. Ensure connections are secure.
2. Check return sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, replace the main control.
Er:32
DHW Sensor Open or
Short
This Error Code will go away when outlet DHW temperature decreases.
If Error happens again:
1. Check DHW outlet temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, replace the main control.
Er:33
CH Temperature Sen-
sor Open or Short
This Error Code will go away when CH temperature decreases.
If Error happens again:
1. Check CH temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, replace the main control.
Er:35
Exhaust Sensor Open
or Short
This Error Code will go away when exhaust temperature decreases.
If Error happens again:
1. Check exhaust temperature sensor. Ensure connections are secure.
2. Check sensor resistance. If resistance is zero, replace the sensor.
3. Check exhaust vent for blockage.
4. If the problem persists, replace the main control.
Er:36
Abnormal Supply
Voltage
Supply voltage is too high to operate. This Error Code will go away when supply voltage returns to normal
operating range.
If Error happens again:
1. Ensure boiler is properly wired to a power source meeting the requirements on the rating plate.
2. If problem persists, replace the main control.
Er:37
Abnormal Supply
Frequency
Supply frequency is too high to operate. This Error Code will go away when supply frequency returns to normal
operating range.
If Error happens again:
1. Ensure boiler is properly wired to a power source meeting the requirements on the rating plate.
2. If problem persists, replace the main control.
Er:38
Error Appears When
Control Stores Data,
but Data is not Saved
Press the Power button to clear the Error Code.
Replace the main control.
Er:41
Fan Speed too high
with flame on
The Error Code will go away unless it occurs five (5) times in ten (10) minutes. Press the Power button to clear the
Error Code.
If Error happens again:
1. Check the vent connections for blockages.
2. Check the burner assembly.
3. Check fan operation. If fan appears to be operating normally but RPMs are too low or too high, replace the fan.
4. If the problem persists, replace the main control.
Er:42
Jumped wire discon-
nected
Press the Power button to clear the Error Code.
If Error happens again:
1. Ensure that the jumper wire is installed and properly connected.
2. If the problem persists, replace the main control.
Er:43
Burner overheat switch
open
Press the Power button to clear the Error Code.
If Error happens again:
1. Check burner overheat switch connections. Ensure connections are secure.
2. Check switch resistance. If resistance is not zero, replace the switch.
3. If the problem persists, replace the main control.
NOTE:
During the error state, the fan will operate to cool the burner until the switch closes.
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 8Vac 26.5Vac power at the fan connection.
If 8Vac 26.5Vac power is present at the control, replace the fan. If the blower does not have 8Vac 26.5Vac power,
check power at the control. If 8Vac 26.5Vac power is not present at the control, replace the control.
3. If the problem persists, replace the main control.
Er:66
Mixing Valve Initial
Value Error
(Mixing Valve Cannot
Return to Initial Posi-
tion)
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 boiler.
2. Check wiring connections to mixing valve. Ensure all are secure.
3. Replace mixing valve.
4. If the problem persists, replace the main control.
Содержание WBRC 140 Series
Страница 21: ...whl 648 Rev 001 Rel 003 Date 10 8 19 21 E Applications Figure 10 Piping Symbol Legend ...
Страница 40: ...whl 648 Rev 001 Rel 003 Date 10 8 19 40 Figure 33 Electrical Wiring Diagram ...
Страница 41: ...whl 648 Rev 001 Rel 003 Date 10 8 19 41 Figure 34 Ladder Diagram ...
Страница 81: ...whl 648 Rev 001 Rel 003 Date 10 8 19 81 Notes ...
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