ER42

The error ER42 indicates shutdown due to exceeding the maximum flow (FL40).
If the detected flow value is higher than the parameter set in FL40 (Primary air regulator → Set flow), the stove will go into ER42 alarm.
Cause: Incorrect reading by the flow meter (FCS) or excessive draft in the chimney.

Actions to take:

• Clear the error and restart the stove.
• If the error recurs, check the wiring and the chimney draft.
• Clear the error, deactivate the FCS (A24 = 0 in Primary air regulator - Settings) and perform a startup.
• If the error does not occur, replacement of the depressimeter is recommended.