Regarding a Vitodens 200-W WB2B natural gas boiler set up with an outdoor reset, low loss header to three zones and DHW loop to a Superstor.
Coding level 2, 38:33 fault - Viessmann tech support said to replace control unit and coding card.
Question: The old coding card is the same part number. If the old card is undamaged, will it contain all of the boiler's settings? Basically, will swapping out the control unit and using the old coding card work without having to reprogram the whole setup?
Thank you,
BOS
Coding level 2, 38:33 fault - Viessmann tech support said to replace control unit and coding card.
Question: The old coding card is the same part number. If the old card is undamaged, will it contain all of the boiler's settings? Basically, will swapping out the control unit and using the old coding card work without having to reprogram the whole setup?
Thank you,
BOS