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SERVICING INSTRUCTIONS
REPLACING PARTS
3.3 To remove the electrode:
• Disconnect the ignition lead and undo the retaining nut
• Remove the electrode noting the orientation of the
electrode terminal when reassembling, Diagram 4
3.4 To remove the thermocouple:
• Undo the retaining nut and withdraw the thermocouple,
Diagram 5
• Undo the thermocouple from the back of the gas valve,
Diagram 6, arrow A
• Reassemble in reverse order
• Do not overtighten
3.5 To remove the gasket:
• Disconnect all the above components and withdraw the
gasket
If it is damaged:
• Replace with a new gasket
AR0943
6
AR1617
5
AR0616
4
Always replace the gasket first when reassembling the
pilot components.
4.1 Look at Section 3 above to access the back of the pilot
assembly:
• Disconnect the ignition lead from the electrode
• Undo the single screw that secures the left side of the
control cover, Diagram 7.
To release the right-hand side of the control cover:
• Insert the narrow blade screwdriver into the slot shown
in Diagram 8
• Lever it gently and pull from the right-hand side at the
same time to remove the cover.
There is a small cylindrical metal spacer inside the cover.
This must be kept and replaced on the fixing screw during
re-assembly.
• Disconect the other end of the ignition lead from the
valve body
Note the existing route of the ignition lead
AR0916
8
AR0915
7
4. IGNITION LEAD