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7 181 465 347 (05.01)
31
Rectifying faults
Error EA
17. Check if the 20-pin connector lead
assembly is damaged.
B Power OFF the appliance.
B Change the 20-pin connector lead assembly.
B Turn ON the appliance.
B Press , restart the appliance.
EA? ↓18.
18. The PCB control board is damaged. B Make a note of the altered service settings (see
table 1 on page 7).
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.
1) See installation instructions
EA and flashing.
During operation: flame not detected
Check Action
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