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Bosch ZWB24-1AR Series - Page 21

Bosch ZWB24-1AR Series
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21 | Failures / Errors
11. Check ignition electrode for damage and
oxidation ?
yes: B Switch off the appliance.
B Change the ignition cable.
B Switch on the appliance.
B Press RESET button and restart again.
EA failure still exist ? -->12.
no: -->12.
12. B Is ionisation current OK ? yes: -->13.
no: B Change the ionisation electrode and check the
assembly of ignition brigde.
B Press RESET button and restart again.
EA failure still exist ? -->13.
13. Cable harness is damaged. B Switch off the appliance.
B Cut mains supply.
B Change the cable harness.
B Connect to main supply.
B Switch on the appliance.
B Press RESET button and restart again.
EA failure still exist ? -->14.
14. Electronic card is defect. B Switch off the appliance.
B Cut mains supply.
B Change the electronic card.
B Connect to main supply.
B Switch on the appliance. END.
EA and operating LED is flashing.
Ignition lock-out (flame not detected) (pump is running)
Control Step Action

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