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7
Service and Spares
7.1
Inspection and service - 18/25 Regular shown
CAUTION: MAINS SUPPLIES
▶ Isolate the water, electricity, and oil mains supplies
before starting any work and observe all relevant
safety precautions.
Routine servicing
To maintain 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 checks
1. Pull front panel (A) forward from the bottom and near the top
disengaging the ball studs from their connections ( B) and lift off the
ledge (C) that runs along the bottom of the fascia to remove and store
safely away from the working area.
A
H
Fig. 72 Access to internal components
Utility system only:
▶ In the case of the Utility system boiler, remove the retaining screw
[1] at the base of the expansion vessel.
▶ Pull the expansion vessel forward slightly and down to remove.
Place to expansion vessel outside of the boiler, taking care not to kink
or stretch the flexible hose.
2. Remove securing screws (D) from each side of control box (E).
▶ Pivot control box (E) downwards into 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.
Greenstar Danesmoor Utility
ErP
and Utility System
E
B
B
ErP
- 6 720 813 286 (2014/09)
Fig. 73 Expansion vessel removal
3. Unplug burner lead (F) from control box (E).
2. & 3.
C
D
Fig. 74 Burner lead
4. Loosen clip (G) to detach air duct pipe from burner (H).
▶ Unscrew burner retainer nut ( I ) and gently pull burner forward so
that the retainer (J) is free of the lug (K).
4.
J
I
Fig. 75 Burner removal
Service and Spares
1
F
D
G
K
41
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