Question
The sensor on my sliding door is no longer picking up people. Why?
Common causes are a dirty lens, a unit knocked out of alignment or a loose cable to the controller. Strong sun through glass and glossy lobby floors can also confuse certain models. We begin by cleaning and re-aiming, then look at the wiring and settings, and swap the sensor only if people are still missed.
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Open the fault finderChecklists before we visit
Short guides from the technicians: what to check, what to photograph, what to ask a supplier.
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01Services
Every door, gate and barrier we look after
Supply, installation, repair and maintenance, from one team. Pick the family that matches what you have.
Gates and barriers
5 types
Entrance and glass doors
4 types
Industrial and loading
1 type
Access and security
3 types
Parts and automation
1 type
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