Westinghouse Premium WBCMC 1000 Series Installation Manual page 53

FLAP CLOSED F15 Flapper valve physically stuck closed.
FLAP OPEN F16 Flapper valve physically stuck open.
The condensate trap is full. This is a serious
safety issue as indicated by the illuminated
red light and the word LOCKOUT flashing on
CONDENSATE FULL F20
the display. The boiler will not restart until a
PUMP OFF
technician determines and repairs the cause
and pushes RESET on the display. During
this lockout fault, the pump will be off.
Screen
There was an error while programming the
control and the memory is corrupt. The
boiler control will not function in this state
and the pump will be off as indicated on
the bottom line. This error only occurs if a
PROGRAM ERROR F31 technician is programming the control and
PUMP OFF the programming function fails. The only
way to recover from this error is to reprogram
the control. If this error occurs at any time
other than when a technician is servicing
the boiler, the control has failed and must be
replaced by a qualified technician.
The control has been programmed by a
CONTROL PROGRAMED
technician or the factory. After programming,
PP
the control is left in a locked out mode.
There is an issue with the outdoor sensor. It
OUTDOOR SENSOR FOU
is shorted, damaged, or disconnected from
PUMP ON 1:45P
the boiler.
The following blocking codes will block operation until the control determines the situation safe for boiler operation.
E07 indicates the flue sensor temperature
is excessive and above 210
displayed the boiler will not respond to a
demand for heat. When the flue temperature
FLUE TEMP HIGH E07
decreases below 194
PUMP OFF TIME
return to normal and allow the boiler to
respond to a heat demand. The bottom line
indicates the status of the pump. The pump
will remain off when this error is displayed.
COMMON FLUE BLOCK Common flue blocking or flapper valve
E16 feedback failure.
E19 indicates the line voltage frequency is
out of range. This could happen if the boiler
LINE VOLTAGE E19
is being powered from a small gasoline
PUMP OFF
powered generator that is overloaded or not
functioning correctly.
Table 27 - Boiler Error and Fault Codes
Description
o
F. When E07 is
o
F, the display will
1. Check flue system for obstructions.
2. Check proper communication between boilers.
3. Check operation of flapper valve.
4. Check wiring between valve and controller.
5. Replace valve-flapper.
1. Check flue system for obstructions.
2. Check proper communication between boilers.
3. Check operation of flapper valve.
4. Check wiring between valve and controller.
5. Replace valve-flapper.
1. Check condensate lines for obstructions.
2. Check float switch in condensate reservoir.
3. Check wiring from condensate reservoir to 926 control and
repair as necessary.
Possible Remedy
The control must be reprogrammed. If programming does not
solve the problem, the control must be replaced.
Press RESET for at least 1 second to use the control.
1. Check outdoor sensor connections and wiring. Ensure the
sensor and wiring are intact and that the sensor is connected to
the boiler.
2. Check the outdoor sensor resistance with an ohmmeter. See
Table 28 for correct outdoor sensor resistance.
3. Replace the outdoor sensor.
Check the flue for obstructions and any sign of damage, especially
signs of excessive heat. Repair as necessary. Run the boiler and
check the flue temperature with an external thermometer. If the
flue temperature on the thermometer does not agree with the flue
temperature displayed in the status menu, inspect the wiring to
the flue temperature sensor in the boiler and repair as necessary. If
the wiring is intact replace the flue sensor. If the flue temperature
is excessive on the status menu and the test thermometer reads
the same, check and adjust combustion controls on the boiler. If
the problem persists, inspect the target wall in the combustion
chamber and replace it if cracked or damaged.
1. Ensure boiler is properly programmed.
2. Check flue system for obstructions.
3. Check proper communication between boilers.
4. Check operation of flapper valve.
5. Check wiring between valve and controller.
6. Replace valve-flapper.
Inspect power wiring to the boiler and repair as necessary. If
connected to line voltage, notify the power company. If connected
to an alternate power source such as a generator or inverter, make
sure the line voltage frequency supplied by the device is 60 Hz.
whl-428-r1 Rev. 001 Rel. 012 Date 7.21.20
53