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Viessmann Replaced My Boiler’s Main Board but Took the Faulty One Without Explanation
On 12.02.2025, our Viessmann boiler with serial number 7514912401447100 displayed an F5 fault, so we called the service ...center at 444 9092. They informed us that a service request had been created and that we would receive a call. On 13.02.2025, I contacted Çakmak Technical Services at 0212 660 07 7