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8 servicing – Glow-worm Hideaway 40CF User Manual

Page 15

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221807B

8 Servicing

Diagram 8.1

Diagram 8.2

ACCESS FOR SERVICING

Diagram 8.3

SECURING THE
THERMOSTAT PHIAL

ISOLATION OF
GAS AND ELECTRICITY

0907

1870

LOCATION
WASHER

PHIAL
POCKET

RETAINING
SPLIT PIN

1010

Servicing must be carried out by a competent person.

Before servicing, turn off the gas supply at the boiler service
cock, see diagram 8.1 and isolate the electrical supply to the
boiler.

Always test for gas soundness after completing a service and
replacement of parts.

8.1 Boiler Flueways

Pull door forwards at the top to disengage the studs and lift to
release from slots, see diagram 7.4.

Lift plinth front up and forwards to withdraw, see diagram 7.4.

Disconnect the union on the gas service cock, see diagram 8.1.

Remove the mains inlet connector by pulling upwards, see
diagram 8.1.

Withdraw the retaining split pin from the thermostat phial pocket
then withdraw the phial and capillary, see diagram 8.2.

Remove electrical connections from the interrupter, see diagram
8.1.

Remove the four screws retaining the combustion chamber
cover and burner assembly, see diagram 8.3. Withdraw
forwards the complete assembly of cover, control box and
burner.

Remove the graphite coated nut to release baffle tray and
remove the combustion chamber, taking care not to damage
the insulation material on the sides.

Remove the self-tapping screws which retain the cleaning door
and lift clear, see diagram 8.4.

Place a sheet of paper in the combustion chamber to catch any
flue debris.

Remove flueway baffles, see diagrams 8.7 and 8.8.

Thoroughly clean boiler flueways and fins with a suitable stiff
brush.

Replace in reverse order, after completing instructions in
Section 8.2 and 8.3.

Make sure that the thermocouple phial is at the bottom of its
pocket and located by the washer being behind the retaining
split pin, leaving clearance between the capillary tube and
boiler, see diagram 8.2.

GRAPHITE
COATED
NUT

SECURING
SCREW (4)

COMBUSTION
CHAMBER COVER

BAFFLE
TRAY

GAS
SERVICE
COCK
UNION

MAINS INLET
CONNECTOR
(pull upwards)

INTERRUPTER
ELECTRICAL
CONNECTIONS

THERMOSTAT
CAPILLARY

TURN OFF

ACCESS TO FLUEWAY

Diagram 8.4

0908

FLUEWAY
CLEANING
DOOR

SELF-
TAPPING
SCREW (4)