Error code

Viessmann nem alma cihazı All models code A9

No approved translation for this record yet; showing the original text.

Meaning

With pump idle time: Heating cir- cuit pump "OFF" if the set value is altered through a change in oper- ating mode or in the set room tem- perature (only for weather-com- pensated control units)

Member details

Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.

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Possible causes

A9:0

Solution

Solution steps are not shared for faults that may be dangerous.

No do-it-yourself solution is given for this fault. For your safety, call an authorised service.

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