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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH
35
INSPECTION AND SERVICE
INSPECTION AND SERVICE
8-716-109-711a (04.05)
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 fascia panel squarely forwards to
disengage the ball stud connections and
remove from the control box (G)
Remove securing screws (C) from each
side
Slide control box (G) outwards to its full
extent
3 Remove securing screws (F) from front
panel (E)
Lift panel (E) up and away from the
supporting ledge (D) on the boiler
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.
4 Depress locking ears and unplug burner lead
(H) from control box (G)
5 RS flue only; loosen clip (J) to detach air duct
pipe (K) from the air intake box
6 Unscrew burner retainers (M) to release the
burner blast tube (L)
Lift burner (N) away, taking care not to over
strain the flexible oil pipes 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 retainer
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
Check that the condensate system is
unobstructed, clean and refill as necessary
Clean all oil filters.
4
6
E
D
F
C
2
H
G
B
M
L
3
5
J
K
A
1
6
N
