Worcester ZWBR 7-30 R 30 HE PLUS COMBI Service Booklet page 32

Rectifying faults
Error F0
F0
(and possibly
Internal failure
Check
B Activate menu option Show serv-
1.
ice parameters.
B Select 9.3 GFA-Asic error
(automatic ignition module,
extended messages).
A message is displayed.
B Select 5.2 GFA status/error .
2.
A message is displayed.
B Select Settings -> Further
3.
options-> Service->Display
service param.
Other faults apart from F0 dis-
played?
4.
flashing?
5. The PCB control board is damaged.
32
Supplied By www.heating spares.co Tel. 0161 620 6677
) flashing.
Action
B Enter figure displayed in customer service record.
↓2.
B Enter figure displayed in customer service record.
↓3.
B Deal with fault(s) displayed as instructed in rele-
yes:
↓4.
no:
yes:
B Press button
B Initiate demand for heat by pressing
B Initiate two more demands for heat as above.
F0? ↓5.
↓5.
no:
B Make a note of the altered service settings (see
B Power OFF the appliance.
B Disconnect the boiler electrical connection.
B Change PCB control board.
B Reconnect the boiler electrical connection.
B Turn ON the appliance.
B Restore service settings previously noted down.
vant fault table(s).
.
and then press again after 30 seconds to cancel.
table 1 on page 7).
.button
7 181 465 347 (05.01)