3.
Detach the thermocouple from the gas valve
4.
Detach the electrode lead from the piezo generator.
5.
Remove the two screws securing the pilot unit (See
figure 24
).
Figure 24. Pilot unit removal
6.
Refit in the reverse order.
Note: 1. The pilot unit is an atmosphere sensing device. It must be replaced as a whole assembly. Its
individual components are not separately replaceable.
Figure 25. Gas valve (Viewed from rear with burner turned over and front leg bracket removed)
Page 24
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20/08/2012
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