Junkers · Cerapur 9000i Boiler
The ignition process of the burner is not optimal, described as 'too hard' or 'too bad', which can lead to ignition failures or difficult starts.
Click steps to track your progress.
Check the gas connection pressure to ensure it is within the correct range.
Inspect the electrodes and their cables for wear or damage; replace if necessary.
In the service menu, switch on the permanent ignition under 'FUNCTION TEST > ACTIVATE TESTS > IGNITION' and check the ignition transformer for misfires.