Technical data

6 720 611 445 GB (03.11)
36
Maintenance
Diaphragm in mixer unit
B Open mixer unit (29).
B Carefully withdraw diaphragm (443) from fan intake
tube and check for soiling and splits.
Fig. 54
B Carefully refit diaphragm (443) the correct way round
into the fan intake tube.
B Seal the mixer unit (29).
Siphon
B Unscrew the clip and disconnect the pipe to the
siphon.
B Remove the drain plug to drain the siphon.
B Unscrew the securing nut from beneath the side
facia and remove the siphon. Refer to figure below.
B Refit and prime the siphon.
Fig. 55
Electrical wiring
B Check the electrical wiring for physical damage and
replace any damaged wires.
Take care not to damage diaphragm
(443) when removing and refitting it.
i
The flaps of the diaphragm (443) must
open upwards.
1.
2.
3.
443
29
6 720 610 790-07.2R
Condensate
Drain
Siphon
Drain
plug
6 720 611 137 - 23.1O