4. Remove the cover on the front. Press the button on
the tilting grate's actuator and tilt the grate with the
supplied tool.
5. Now the ash screw under the tilting grate is
accessible and the foreign body can be removed.
6. After removing the foreign body, replace the
combustion chamber cover and reattach the cover
on the front.
7. Replace the ash box and switch on the boiler with
the mains switch. To check, start de-ashing by
pressing [De-ash] .
If no error message appears, switch the boiler back on
with the On/Off switch. If there is still a
blockage, the ash screw must be removed.
Removing the ash screw
If the ash screw is jammed or the foreign body
cannot be removed, the ash screw must be
removed.
1. End the boiler's heating mode with the On/Off
switch in the boiler overview window. As
soon as the [Switched off] operating condition is
displayed, switch off the boiler with the mains
switch.
2. Detach the ash box from the boiler and remove the
M8 screw that secures the ash screw.
Fig. 8-3: Removing the screw
3. The ash screw is now loosened from its shaft and
can be extracted from the ash duct by turning it
anti-clockwise.
Fig. 8-4: Unscrewing the ash screw
4. Remove the ash or the foreign body from the ash
duct.
5. Then insert the ash screw again and secure it with
the M8 screw. Replace the ash box and switch on
the boiler with the mains switch. To perfom the
check, start de-ashing by pressing the [De-ash]
button.
Switch the boiler back on with the On/Off
switch.
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