68
– remove the two screws (7), lift the expansion vessel and hook
it onto the support (8)
7
8
Fig. 163
– loosen the clip (9) and extract the air inlet pipe (10)
– unscrew the swivel joint (11)
– extract the connectors (12) from the fan and disconnect the
electrode cable (13)
10
13
11
9
9
12
Fig. 164
– Unscrew the four nuts (14) securing the combustion cham-
ber door (15)
– pull the fan/sleeve/door/air pipe assembly (16) forwards and
remove it.
16
15
14
14
Fig. 165
m
CAUTION
Work carefully when removing the assembly (16) to pre-
vent any damage occurring to the internal insulation of
the combustion chamber and the door seal.
7.3.2
Cleaning the burner and the combustion
chamber
The combustion chamber and the burner do not require any
particular maintenance. Simply brush them with a soft brush.
7.3.3
Checking the ignition/detection electrode
Check the state of the ignition/detection electrode and replace
if necessary. Check the measurements as per the drawing
whether the ignition/detection electrode is replaced or not.
6
+0,5
-0,5
4,5
+0,5
-0,5
Fig. 166
