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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH
35
INSPECTION AND SERVICE
INSPECTION AND SERVICE
8-716-106-256a (08.05)
CAUTION: ISOLATE THE WATER,
ELECTRICITY AND OIL MAINS SUPPLIES
BEFORE STARTING ANY WORK AND
OBSERVE ALL RELEVANT SAFETY
PRECAUTIONS.
Routine servicing:
To assist efficient boiler operation, the following
should be carried out at least once a year.
Carry out a pre-service check and note any
operational faults:
Pre-Service Check:
1 Lift the top panel (A) upwards to disengage
the ball stud connections (B) and remove.
2 Pull base of front panel (E) away from the
boiler to disengage ball stud connectors (K).
Lift front panel (E) upwards off the supporting
ledge (D).
3 Pull the top front panel (L) away from the boiler
to disengage the ball stud connectors and
remove.
Store panels safely away from the working area.
4 Remove securing screws (C) from each side
of the control box (G).
Slide control box (G) outwards to its full extent.
Pivot control box (G) upwards and secure in
the service position as shown.
Operate the appliance and system and note any
faults which may need to be corrected during the
service.
Switch off and electrically isolate the boiler.
5 Depress locking ears and unplug burner lead
(F) from control box (G).
6 Loosen clip (J) to detach air duct pipe.
7 Unscrew burner retainers (H) to release the
burner combustion head (N).
Lift burner away, taking care not to over strain
the flexible oil pipe/s or connections.
See the following instructions for detail of some
of the service requirements listed below:
Check and clean the burner.
Replace burner nozzle and flexible oil pipe/s.
Check and clean the baffle retainers.
Check and clean the baffles.
Check and clean the heat exchanger surfaces.
Check the combustion chamber access door
insulation board.
Check that the flue system is unobstructed
and clean as necessary.
Clean or replace all oil filters.
B
A
K
1
F
G
C
5
3
4
L
7
J
K
E
2
H
N
6
7
