How Often Should Automatic Door Sensors Be Checked and Serviced?

Automatic doors feel like magic when they work seamlessly and like a major hazard when they don’t. Whether in a hospital, supermarket, office, or residential building, the sensors are the “brains” of the operation. Keeping them checked and serviced isn’t just good maintenance it’s a legal and safety requirement.

The Recommended Servicing Schedule

How often automatic door sensors need attention depends on who is doing the checking and how heavy the foot traffic is.

Why Regular Maintenance is Non-Negotiable

1. Injury Prevention & Pedestrian Safety

The primary job of a presence sensor is to keep heavy glass or metallic doors from closing on a person. Motion sensors detect people approaching, but presence sensors ensure the door stays open if someone stops in the doorway. If these sensors fall out of calibration, they can fail to detect small children, pets, or individuals using wheelchairs, leading to severe impact or entrapment injuries.

2. Dust, Grime, and Environmental Interference

Sensors rely on optical infrared light, radar, or laser technology. Over time, outdoor dust, rain spots, cobwebs, and grease build up over the sensor lens. This leads to two annoying (and costly) problems:

• False activations: The door constantly opens and closes when no one is there, wearing out the motor.

• Failure to detect: The sensor light is blocked, causing the door to stay shut or close unexpectedly.

3. Legal Compliance & Liability

Building managers and owners have a legal duty of care. Under safety standards like BS EN 16005 (and equivalent workplace regulations), automatic doors must undergo at least annual inspections by a certified engineer. Failing to maintain a documented logbook of sensor checks can void property insurance and result in heavy liability claims if an accident occurs.

4. Energy Efficiency & Climate Control

A misaligned sensor that picks up traffic parallel to the door or triggers every time a car drives by keeps your facility open to the elements. This forces heating and air-conditioning systems to work double time, driving up energy bills.

Simple Routine Inspection Checklist

In-house teams can do a quick 2-minute sensor check every week:

• The Walk Test: Walk directly toward the door at a normal pace. The door should begin opening before you get within 1 to 1.5m.

• Side-Approach Test: Walk toward the door from sharp angles to ensure the side detection zones are active.

• Presence Test: Stand still directly in the threshold. The door should remain fully open as long as you are standing in the frame.

• Lens Wipe: Gently clean the exterior sensor housing with a soft microfiber cloth (avoid harsh chemicals).

Keeping up with a regular service schedule ensures your automatic door sensors doors remain safe, compliant, and welcome everyone who walks through them.