Viessmann · Vitodens 200 Boilers
Modifying coding address 017 from its factory default (017:001) for models 6-24/8-32 will cause the burner to fire without the circulation pump operating, potentially leading to fault 02. This coding has no effect on models WB2-44/60.
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For models 6-24/8-32, ensure coding address 017 is set to its factory default of 017:001.
After making any changes, power cycle the boiler (power ON/OFF) for the new settings to take effect.
If fault 02 appears, address coding 017 first for applicable models.