31
The life of individual components vary and they will need
servicing or replacing as and when faults develop.
The fault finding sequence chart in
Section 24 will help to locate
which component is the cause of any malfunction, and
instructions for removal, inspection and replacement of the
individual parts are given in the following pages.
22.1 To Gain General Access
To ensure efficient safe operation, it is recommended that the
boiler is serviced annually by a competent person.
Before starting any servicing work, ensure both the gas and
electrical supplies to the boiler are isolated and the boiler is
cool.
Before and after servicing, a combustion analysis should be
made via the flue sampling point.
After servicing, preliminary electrical system checks must be
carried out to ensure electrical safety (i.e. polarity, earth
continuity, resistance to earth and short circuit).
A
All testing and maintenance operations on the boiler
require the control panel to be lowered. This will also
require the removal of the casing.
22.1.1 Removing the front panel :
22.1.2 Removing the side panels :
22.1.3 Lowering the control panel :
Fig. 43
Fig. 41
Fig. 42
Fig. 44
B
Fig. 45
1. Unlock the two clamps locking A (see Figs. 41 & 42);
2. Remove the front panel from the rest of the
casing (see Fig. 43).
1. Remove the front panel;
2. Remove the screws B lift toward at the base and
then lift off the locating lugs (see Fig. 44).
1. Remove the front panel;
2. Unlock the two clamps locking and pivot the
electrical box downward (see Fig. 45).
22
Replacement of Parts
SERVICING INSTRUCTIONS
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