Error code
Viessmann nem alma cihazı All models code EA1
No approved translation for this record yet; showing the original text.
Meaning
No function External demand, DHW circulation pump External demand (based on boiler application type) External blocking Call for heat demand (based on boiler application type)
Member details
Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.
View details as a memberPossible causes
Push button function, DHW recirculation pump runs for 5 min. Boiler demand with adjustable target supply temperature (parameter 528.0) and target primary pump speed (parameter 1100.2) Heat is shown in the display/menu as “Heating zone 4”
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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Address of this page: https://www.remfixit.com/tr/viessmannnemalmacihazi/tum-modeller/ea1