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11 Maintenance
Danger to life from electric shock!
Improper maintenance may result in fatal injury from electrical current.
Disconnect all cables from the power supply.
Only allow competent personnel or electricians to carry out the maintenance.
Secure the mains disconnector against being switched on or plugged in
The electronic components of the door control are maintenance-free. Carry out the following maintenance
operations at least once a year:
Use a dry cloth to remove dust and light dirt.
Check the connecting cables for firm seating and possible damage
(e.g. to the insulation).
Check the fasteners for firm seating and damage.
Replace any porous gaskets.
he cable glands for firm seating and leak