Ignition Lead, GAS Valve, Pilot Injector

AR1349

•Replace with a new electrode. Do not over-tighten the nut; this could break the component

•Replace the ignition lead by pushing the spade connector onto the terminal (electrode)

AR1874

8.4Pilot Injector

•Undo the pilot pipe from the gas valve and from the underside of the pilot burner, Diagram 14, arrow A

•Remove the pipe and the injector drops out from the burner

•Disconnect the thermocouple from the gas valve/interrupter, Diagram 14, Arrow B

•Undo the thermocouple nut in the back of the pilot bracket half a turn. This releases the thermocouple.

When replacing with a new thermocouple, take care to bend the new component to the same shape as the thermocouple just removed.

To refit the thermocouple into the pilot bracket, ensure it is pushed fully into the hole. There is a stop on the thermocouple to set the height.

•Lock the retaining nut just enough to grip the thermocouple

•Connect the thermocouple to the valve/interrupter and take care not to over-tighten

AR1872

9.1To replace the ignition lead:

•Release the Main Control Assembly and tilt backwards, see Section 7 above

•Remove the ignition lead from the control box, Diagram

15, Arrow A

•Remove the ignition lead from the electrode,

Diagram 15, Arrow B

Note the direction of the lead. The new lead must follow exactly the same route.

NOTE: THE IGNITION LEAD MUST NOT PASS IN FRONT OF THE CONTROL BOX AS THIS CAN DAMAGE THE SENSITIVE ELECTRONICS.

10.1To change the gas valve:

•Remove the control assembly, Section 7

•Release the gas inlet pipe, Diagram 16, Arrow A

•Remove the thermocouple from the interrupter block

and release the second thermo current cables

•

•Release the pilot pipe, Diagram 16, B

•Release the injector feed pipe, Diagram 16, C

•Remove the wire cable, Diagram16, D

•Remove the two screws

The valve can now be freed.