Resetting Codes To Their Delivered Condition - Viessmann VITODENS 200-W Service Instructions Manual

Codes

Resetting codes to their delivered condition

Constant temperature control unit:
1. L+G simultaneously for approx.
2 s.
2. e press.
Weather-compensated control unit:
1. L+G simultaneously for approx.
2 s.
2. e
"Factory set? Yes"
appears.
3. d to confirm
or
a/b
to select "Factory set?
No".
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