Service manual

G.Fire Service Manual 18 Issue A — © Masport, March 2004
2.5 REMOVING AND REPLACING THE PILOT ASSEMBLY
NOTE: EIS models have no pilot. The pilots fitted to the Piccolo have top loading jets, so the jet can be
removed without removing the pilot assembly. Pilot assembly removal should be rare.
1. Remove the burner, following steps 1 – 6 in Section 2.4. 2. Disconnect the Piezo wire,
(the thermopile and thermocouple, if fitted) and the gas pipe to the pilot.
3. Withdraw the screws fixing the pilot assembly to the burner tray.
4. The pilot assembly can now be disconnected and lifted clear.
5. Follow the above order in reverse to replace the pilot assembly.
NOTE: Always smear ROCOL MOLYCOTE J166 on the pilot tube retaining nut threads when re-fitting
the pilot tube.
2.6 ACCESSING THE PILOT JET
The pilot jet is reached for removal as illustrated below.
TOP LOADING PILOT CORRECT SPARK GAP — 4 - 5 mm.
2.6 ACCESSING THE MAIN INJECTOR
1. Remove the burner. See 2.4.
2. The injector can now be unscrewed from the gas pipe elbow.
3. When replacing an injector, it will be necessary to align the elbow to enable the injector to pick up
the thread in the elbow. The injector should not be over-tightened, and a small amount of teflon
thread sealant (not tape) should be applied to the thread to prevent gas leakage.
2.7 ACCESSING THE CONTROL VALVE
1. Remove the glass or glass assembly. See 2.1 or 2.2.
2. Turn off the gas and un-plug the lead from the mains power supply.
3. Disconnect the gas supply pipe at the inlet to the control valve.
4. Remove the logs and embers. See 2.4, steps 2 – 4.
5. Extract the screws holding the burner tray to the firebox base.
6. Lift the burner tray clear. The control valve and pilot assembly lift clear as a complete assembly and
these parts can be removed and serviced as required.
7. Reassemble in the reverse order, taking care to check for gas leaks.
2.8 REMOVING AND REPLACING THE FASCIA
1. Un-plug the lead from the mains supply.
2. Extract the six screws, two each side and two at the top, which hold the fascia to the firebox
cabinet.
3. Taking care not to strain the wiring looms, ease the fascia away from the firebox. The looms can be
disconnected at the switches, if necessary, by carefully prising the connectors from the spade
terminals.