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21
SERVICING INSTRUCTIONS
REPLACING PARTS
11.1 Remove the lower cover. See diagram 6.
11.2 Locate the control box and remove all of the wires
connected to the box. NOTE THEIR POSITIONS.
11.3 Remove the two screws from the box. See diagram 17,
arrow A.
11.4 Replace in reverse order.
12.1 Turn off the gas supply at the isolation device.
12.2 Remove the lower cover. See diagram 6.
12.3 Remove the inlet pipe from the gas valve. See diagram 18
arrow D.
12.4 Disconnect the pilot pipe from the top of the gas valve. See
diagram 18 arrow B.
12.5 Undo the thermocouple from the rear of the gas valve. See
diagram 19 arrow C.
12. GAS VALVE
11. CONTROL BOX
17
AR1346
18
AR1343
12.6 Undo the feed pipe from the gas valve. See diagram 18
arrow C.
12.7 Release the wires from the clip and disconnect the valve
harness from the control box. See diagram 20.
12.8 Undo the two valve retaining nuts from the bracket. See
diagram 18 arrow A.
12.9 Cut the cable ties carefully and remove the valve.
12.10 Reassemble in reverse order and replace new cable ties.
DO NOT OVER TIGHTEN THE VALVE RETAINING NUTS.
12.11 Check for gas leaks.
19
AR1344
20
AR1346
C
C
A
B
D
A
A
4.5v
4.5v