77
Combustion door will not open when I press
the green button, the green light is on, I
cannot hear the interlock ‘click’.
Door interlock not disengaging.
When pushing the green button, push the door
handle down, then up to open the door.
ü
Auger motor is turning, no pellets are being
delivered to combustion pot.
Auger drive mechanism fault.
Check auger drive coupling at top of auger.
ü
Alarm ‘Probe B01 fault or disconnected’.
Airlock in boiler causing high temperature.
Bleed heating system to remove airlocks.
ü
Airlocks keep occurring in heating system.
Automatic air vent does not have sealing
plug correctly fitted.
Ensure sealing plug has been correctly fitted
and tightened.
ü
Excessive smoke exhausted from flue with
appliance operating.
Appliance requires cleaning
Appliance requires servicing and flue
cleaned
Clean appliance.
Service appliance and clean flue
ü
ü
Pellets are getting damp in the hopper.
Check for water ingress points around
hopper door and flue.
Rectify water ingress, replace pellets.
ü
Noise in heating system when appliance is
operating
Water flow rate too high when valve
actuator fully open i.e. 0% setting.
Increase ‘Actuator min’ parameter (Refer to
Table 8)
ü
Flue fan is running but Draught Act. value is
around 0.
Draught hose disconnected at combustion
door or sensor.
Inspect draught sensor hose and connections.
ü
Draught Act. value remains at 1-5Pa. with
flue switched off.
Natural draught created by flue.
This is normal operation, requires no action.
LF or LS mode is frequently activated.
Appliance requires servicing.
Service appliance.
ü
PF mode is activated.
Appliance permanent live supply has been
interrupted, in a mode other than standby.
Allow appliance to complete firing cycle.
ü
Freeze risk mode is activated, appliance is
firing even though clock and room
thermostats are off.
Appliance temperature is low, and at risk of
freezing.
Allow appliance to fire until freeze risk is
removed.
ü
Table 19: Troubleshooting guide
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