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Image 7
– Turn off doorbell transformer
In some cases you need to turn off the end group in the power cabinet/electricity
cabinet, to make sure that the transformer is without power.
Check if the doorbell is switched off by pressing the doorbell button again. If so, follow
the next steps.
3.1 Remove the current doorbell button
Unscrew the existing doorbell button currently in use. Detach the two wires connected
to the current doorbell button carefully. This doorbell button is not needed from now
on.
Image 8
– Remove the current doorbell button
