Troubleshooting Guide

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14. Troubleshooting
14.2 Troubleshooting
The following guide to troubleshooting lists potential prob-
lems and their causes and information on correcting them.
In some cases, other chapters and sections with a more
detailed description are referenced. You will be prompted
to call a technician if this is required.
Work on the electrical system and live parts may be per-
formed only by a trained electrician.
1. Pull the power plug out of the power outlet.
If a battery pack has been installed, remove the wall
control unit cover and disconnect the battery pack
from the wall control unit. See chapter "6.1 Control unit
cover of the wall control unit" and chapter "8.1 Install-
ing and removing battery pack".
Then check that the power is disconnected.
2. After working on the opener, if applicable replace
the battery pack in reverse order. See chapter "6.1
Control unit cover of the wall control unit" and chapter
"8.1 Installing and removing battery pack". Connect the
opener to the main power supply.
Check that the power supply is connected.

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