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Vaillant VR 52 - Resetting to Factory Setting

Vaillant VR 52
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Troubleshooting
24
Operating and installation instructions 0020249211_03
6
6.2 Resetting to factory setting
i
Note
All settings will be lost.
1. Remove the product from the plug
socket.
1
2. Plug the product back into the plug
socket, and press and hold the system
button (1) for four seconds at the same