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6. REPLACEMENT OF PARTS – Page 10
IMPORTANT:
THE FOLLOWING WORK SHOULD ONLY BE CARRIED OUT BY A COMPETENT SERVICE
ENGINEER. E.G. BRITISH GAS OR CORGI REGISTERED PERSONNEL
1. IF WATER IS DRAINED FROM THE SYSTEM DURING SERVICING, TURN ON ALL HOT TAPS TO PURGE AIR
FROM THE WATER SYSTEM. TURN THEM OFF IN SEQUENCE, STARTING WITH THE TAP AT THE LOWEST
LEVEL
2. WHEN REPLACING ANY PARTS, RE-ASSEMBLE IN REVERSE ORDER UNLESS OTHERWISE STATED.
This chart shows the steps to be taken in order access a specific part or perform a particular function. Use this chart in
conjunction with the detailed procedures on the following pages.
General Access/Main Burner
Drain the Appliance
Remove Heating Unit
10
START
Remove Piezo Unit
Remove Pilot Injector
Remove Energy Cut-Off Device
Remove Thermocouple and
Remove Pilot Injector
Remove Flame Failure Device
Remove Water Governor and
Descale and Regrease
Remove Water Govenor
Descale Heating Unit
Electrode
Remove the Automatic Valve &
Push Rod
Burner Manifold Complete
Venturi
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