Viessmann 7450156 Backup Battery Replacement

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Viessmann 7450156 Backup Battery Replacement, Remove the encoder knob: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Viessmann 7450156 Backup Battery Replacement, Remove the encoder knob: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Viessmann 7450156 Backup Battery Replacement, Remove the encoder knob: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Remove the encoder knob

Place the module on its back.
Open the flap that covers the buttons for setting the timer.
Remove the encoder knob by pulling it off.

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