Worcester GREENSTAR HE combi Series, Installation And Servicing Instructions

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7 181 465 347 (01.07)
22
Rectifying faults
b1
flashing.
Code plug not detected.
Check Action
1. No fault or fault code FC displayed
on text display?
yes:
B
Power OFF the appliance.
B Fit code plug (correctly), making sure code
number (see Appendix) is correct.
B
Turn ON the appliance.
b1?
↓
2.
no:
↓
2.
2.
B
Activate menu option Show serv-
ice parameters .
B Select
1.2 Code plug
.
B
Compare number displayed with
that shown in Appendix.
No number or incorrect number
(last three digits) displayed.
yes:
↓
2.
no:
↓
4.
3. Code plug loose, incorrect or defec-
tive.
B
Power OFF the appliance.
B Replace code plug
1)
, making sure code number
is correct.
B
Turn ON the appliance.
b1?
↓
4.
1) For order no., refer to Appendix
4. The PCB control board is damaged.
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.