41 0020008154A
14 Replacement of Parts
14.8 Front Insulation
For access, refer to section 14.1.
Refer to section 12.3 for removal of the fan, gas valve and burner
assembly.
Remove burner as per section 14.7.
Remove spark electrode, see section 14.2.
NOTE: THE BURNER WILL REQUIRE A NEW GASKET WHEN
REFITTED.
14.9 Rear Insulation
For access, refer to section 14.1.
Refer to section 12.3 for removal of the fan, gas valve and burner
assembly.
Remove securing screw and washer in the centre of the insulation
and withdraw insulation, see diagram 14.6.
14.10 Viewing Window
For access, refer to section 14.1.
Refer to diagram 14.7.
Remove circlip.
Remove steel washer.
Remove glass.
Remove fibre washer.
Replace in reverse order.
14.11 Expansion Vessel
For access, refer to section 14.1.
Refer to section 12.9 and drain the boiler heating circuit.
Undo the coupling at the base of the vessel, see diagram 14.8.
While holding the vessel remove the securing bolt on the top
panel of the boiler. Remove upper support bracket.
Lift the vessel up, draw bottom out to the left, lower and remove.
Fit the replacement unit.
Fit a new gasket between the expansion vessel and coupling.
Refill, vent and pressurise the boiler.
Check for leaks.
HEAT
EXCHANGER
Diagram 14.6
SECURING
SCREW
WASHER
REAR
INSULATION
Diagram 14.7
CIRCLIP
GLASS
STEEL
WASHER
FIBRE
WASHER
Diagram 14.8
SECURING
BOLT
COUPLING
UPPER SUPPORT
BRACKET
EXPANSION
VESSEL
11412
11413
11488
11489
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