71
Alarm Screen
Possible Cause(s)
Suggested Action(s)
Action By
User
Engineer
Blockage in the heat exchanger and/or flue
system
Insufficient airflow due to fan fault
Service the Appliance. Refer to the
WS18/WP18 Technical Manual
Test and replace fans if necessary
ü
ü
The fuel hopper is empty.
The pellet level sensor fitted at the bottom
of the fuel hopper is faulty.
Fill the pellet hopper with enough pellets to
cover the pellet level sensor.
Test the operation of the pellet level sensor and
repair/replace if necessary.
ü
ü
Blockage restricting fan rotation
Intake fan faulty, power supply wiring fault
or rpm feedback wiring fault
Faulty intake fan 24Vdc power supply unit
Faulty intake fan relay
Check and clear blockages
Check all associated wiring and connections on
Main PCB, Power Supply Unit, Relays and Fan
Test and replace intake fan, power supply relay
or Main PCB if necessary
ü
ü
ü
Intake fan relay fault
Test and replace relay or Main PCB if
necessary
ü
Table 14: Alarms Schedule 3
Содержание WS18
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