Benchmark ZWB 7-29 CC1 Installation And Servicing page 83

EA
and
No flame ionisations signal
Check
13.
B Press buttons
neously.
B Select service-function 5.1.
Continuous ignition (without gas)
OK?
14. Ignition lead connected to ignition
electrodes?
15. Ignition cable connector engaged in
switchbox?
16. Is the ignition electrical wire
damaged?
17.
B Press button
B Select service-function 3.3.
Is the ionisation quality 2. or 3. ?
18. Electrode assembly defective?
B Power OFF the appliance.
B Remove electrode assembly.
Electrodes worn out?
7 181 465 346 GB (03.02)
flashing.
yes:
and simulta-
no:
yes:
no:
yes:
no:
yes:
no:
yes:
.
no:
yes:
no:
Failure identification procedure
Action
B Press buttons
and
↓14.
B Press buttons
and
↓17.
↓15.
B Connect cable to ignition electrode.
B Press
, restart the appliance.
EA? ↓15.
↓16.
B Power OFF the appliance.
B Engage ignition cable connector in switchbox.
B Turn ON the appliance.
B Press
, restart the appliance.
EA? ↓16.
B Power OFF the appliance.
B Change the ignition electrical wire.
B Turn ON the appliance.
B Press
, restart the appliance.
EA? ↓17.
↓17.
↓19.
↓18.
B Replace electrode assembly.
B Turn ON the appliance.
B Press
, restart the appliance.
EA? ↓19.
B Refit electrode assembly.
B Turn ON the appliance.
B Press
, restart the appliance.
EA? ↓19.
simultaneously.
simultaneously.
35