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Error code: 1C 210

CauseThe flue gas thermostat has measured too high a temperature and is open or there is no continuity between contacts 50 and 78 of the UBA 3 mounting base.


Open (at least) half of all radiators.

Restart the boiler.

Other symptoms:

    No central heating operation. No hot tap water.



Installer Diagnosis

    Step 1


Check continuity between contacts 50 and 78 of the UBA 3 mounting base


Is the connection OK?

And Nee

This malfunction requires the help of a professional

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