Westinghouse WBRE80 User Manual page 58

58
CONTROL PROGRAMED PP
OUTDOOR SENSOR FOU
PUMP ON 1:45P
The following blocking codes will block operation until the control determines the situation safe for boiler operation.
LOW WATER FLOW FL
PUMP OFF 4:32P
FLUE TEMP HIGH E07
PUMP ON TIME
TEMPER BLOCKING TT
PUMP ON
TEMPER BLOCKING
PUMP ON
HIGH FLUE PRESS FLU
PUMP ON
WARNING: Do not use jumper to remedy an FLU error. Faulty switch MUST be replaced. Failure to follow this instruction could result in
serious personal injury or death.
WHL-052 Rev. 4.28.16
The control has been programmed by a
technician or the factory. After programming,
the control is left in a locked out mode.
There is an issue with the outdoor sensor. It
is shorted, damaged, or disconnected from
the boiler.
This indicates the flow switch is not activated.
This display indicates that the flue sensor
o
temperature is above 210 F. When this code
is displayed, the boiler will not respond to a
demand for heat. When the flue temperature
o
decreases below 194 F, the display will 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 on
when this error is displayed.
TT indicates there is a demand for heat on
the boiler, the pump is powered on, and the
supply sensor temperature is too high for
the boiler to ignite. This occurs because the
water temperature measured by the supply
sensor is higher than the tank temperature –
ignition diff setting.
This screen indicates a demand for heat from
the DHW circuit. The pump is powered on and
the supply sensor temperature is too high for
the boiler to ignite. This occurs because the
water temperature measured by the supply
sensor is higher than the tank temperature –
ignition diff setting.
NOTE: If there is a CH demand while this
screen is displayed, the screen may read:
TEMPER BLOCKING
FLU indicates excessive flue pressure. This
code resets automatically after the high
pressure condition is resolved. The second
line indicates pump status.
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 in this manual for correct outdoor sensor
resistance.
3. Replace the outdoor sensor.
1. Ensure boiler contains water and all valves are open.
2. Check the boiler circulator and ensure it is in good
operating condition (operating, wiring intact, etc.).
3. Inspect the wiring to the flow switch for damage and
repair as necessary.
4. Disconnect one wire from the flow switch and test for
continuity across the switch while flow is confirmed to be
present.
5. Remove flow switch and inspect switch paddle for
proper operation.
Check the flue for obstructions or 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.
This message will stay present until the water temperature
measured by the supply sensor is less than the tank
temperature – ignition diff setting.
This message will stay present until the water
temperature measured by the supply sensor is less than
the BOILER SUPPLY – boiler supply differential (5
DHW SETPOINT is satisfied and no longer calls for heat.
PRIO
1. Assure the flue is not blocked.
2. Check the switch wiring by applying a jumper in place
of the switch. If the code clears with the jumper in place,
REPLACE the flue switch and connect the wires to the
new switch BEFORE running boiler.
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