What deviations are visible during maintenance? · Villa
Periodic maintenance focuses on doorbell power supply, doorbell, connection to the door frame and phone notifications. Compare the current operation with the agreed configuration. Document deviations before settings change. Distinguish between control, cleaning, adjustment, and repair. Discuss defects that fall outside the maintenance task and check after work whether normal operation still works. We complete the check against A call from outside that arrives audible and visible to the desired user..

