In my quest to get more information about E0 error I was trying to use this service-documents/v3 call. But I am missing an important parameter it looks like, what is materialNumber refering to?
Could some examples be shared please.
Thanks in advance
Jørgen
Hi @jborup ,
the key "materialNumber" identifies the product you are looking for. The materialNumber is equal to the first 7 digits of your boiler serial number.
You can identify your boiler serial number with the endpoint https://api.viessmann.com/iot/v1/equipment/installations?includeGateways=true and searching for "boilerSerial".
Best,
Michael