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

Rectifying faults
Error EA
EA
and flashing.
During operation: flame not detected
Check
10.
Is flue gas CO level incorrect
2
B Activate menu option Show service
11.
parameters.
B Select 5.1 Permanent ignition
(without Gas).
Continuous ignition (without gas) OK?
12. Ignition lead connected to ignition elec-
trodes?
13. Ignition cable connector engaged in
switchbox?
14. Is the ignition electrical wire
damaged?
B Activate menu option Show service
15.
parameters.
B Select 3.3 Ionisation current .
Measured ionisation current medium
or high?
16. Electrode assembly defective?
B Power OFF the appliance.
B Remove electrode assembly.
Electrode assembly burnt out?
30
Supplied By www.heating spares.co Tel. 0161 620 6677
Action
B Adjust to correct level.
1) yes:
?
B Press
EA? ↓11.
↓11.
no:
yes:
B Press
↓12.
no:
B Press
↓15.
↓13.
yes:
B Reconnect lead.
no:
B Press
EA? ↓13.
↓14.
yes:
B Power OFF the appliance.
no:
B Engage ignition cable connector in switchbox.
B Turn ON the appliance.
B Press
EA? ↓14.
B Power OFF the appliance.
yes:
B Change the ignition electrical wire.
B Turn ON the appliance.
B Press
EA? ↓15.
↓15.
no:
↓17.
yes:
↓16.
no:
B Replace electrode assembly.
yes:
B Turn ON the appliance.
B Press
EA? ↓17.
B Refit electrode assembly.
no:
B Turn ON the appliance.
B Press
EA? ↓17.
, restart the appliance.
button to select no.
button to select no.
, restart the appliance.
, restart the appliance.
, restart the appliance.
, restart the appliance.
, restart the appliance.
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