Worcester CDi Combi N.G Service Booklet page 51

FA
and RESET button and fault indicator LED are flashing.
After appliance switches off flame is detected
Check
6. The PCB is damaged.
Tab. 28 FA Error codes
Fd
and RESET button and fault indicator LED are flashing.
Reset button pressed inadvertently
Check
1. reset button flashing?
2. The PCB is damaged.
Tab. 29 Fd Error codes
8 716 115 748 (2009/09)
Supplied By www.heating spares.co Tel. 0161 620 6677
Action
B Make a note of the altered service settings.
B Switch OFF the appliance.
B Disconnect the boiler power connection.
B Change PCB control board.
B Reconnect the appliance power connection.
B Switch ON the appliance.
B Restore service settings previously noted down.
Action
B Press the reset button for 3 seconds and release it.
After releasing the appliance re-starts.
Fd? go to 2
B Make a note of the altered service settings (see
table 6 on page 18).
B Switch OFF the appliance.
B Disconnect the boiler power connection.
B Change PCB control board.
B Reconnect the appliance power connection.
B Switch ON the appliance.
B Restore service settings previously noted down.
RECTIFYING FAULTS
51