B Disconnect The Boiler Power Connection; B Reconnect The Appliance Power Connection; B Switch On The Appliance - Worcester CDi Combi N.G Service Booklet

E9
and button reset and fault indicator LED are flashing.
Safety temperature circuit has tripped.
Check
The PCB is damaged.
10.
Tab. 24 E9 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.
RECTIFYING FAULTS
43