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5.5 To remove the microswitch assembly
1. Remove the hob top and tray.
2. Remove the neon mounting bracket by pulling it upward (GC913 only).
3. Remove the microswitch assembly wires connected to each neon (GC913 only).
4. Lift the switches off the gas valves.
5. Disconnect the active and neutral wires from the terminal block.
6. Disconnect the earth from the terminal block or basepan and unplug from the ignition
box.
5.6 To remove a gas valve
1. Remove the cooktop from the benchtop.
2. Remove the hob top and tray.
3. Remove the microswitch assembly.
4. Disconnect all the aluminium tubes from the gas valve outlets.
5. Remove the screws securing the manifold to the basepan.
6. Remove the gas valve from the manifold.
Note:
Leak test all gas connections. Block each injector orifice in turn and open the valve
to leak test the gas connections beyond the valve.
Check and adjust the low flame setting.
5.7 To service a gas valve
1. Remove the hob top and tray.
2. Remove the microswitch assembly.
3. Remove the screws on the top of the gas valve.
4. Gently lift out the valve cone and clean with solvent.
5. Regrease the cone with high temperature grease.
6. Refit and rotate the cone.
7. Lift out the cone, remove any excess grease and check the holes in the cone and the
valve body are not blocked.
8. Reassemble the valve assembly.
9. Open and close the valve several times.
Check the valve for leaks.