Access control maintenance: what to check and how often
Quick answer
Access control nearly always fails for the same reasons: flat batteries, misaligned doors, out-of-date software and users who were never removed. Periodic checks on those four fronts, at the intervals each manufacturer specifies, prevent most breakdowns and security gaps.
What wears out and what expires
- Power supply batteries. They lose capacity over the years; the day of the power cut is a bad time to find out.
- Batteries in standalone locks (common in hotels): changed on alert or by calendar.
- Door hardware. Hinges, closers and latches. A binding door will defeat the best electric strike.
- Moving parts in turnstiles and barriers. Springs, motors, limit switches and safety devices.
- Outdoor readers. Seals, vandalism, water ingress.
- Software and firmware. Updates fix security flaws.
- The user database. Leavers not removed, "test" cards, permissions nobody remembers.
Indicative checklist
- Simulate a power cut and check that doors behave as intended and the battery lasts.
- Test release on the fire alarm for escape doors (why).
- Open and close every door: does it close by itself? Does the door-open alert trigger?
- Check fixings, play and safety devices on turnstiles and barriers.
- Verify the backup by restoring it, not just that it "runs".
- Apply software and firmware updates.
- Review the list of users and administrators with the company.
- Scan the event log for repeated faults.
Frequency is set by the manufacturer and by intensity of use: a gym turnstile with thousands of passages a day is not an office door.
What a maintenance contract should state
- Which equipment is covered and how many preventive visits a year.
- Response time for faults and service hours.
- Whether labour, travel and parts are included.
- Whether software updates are included.
- What report is delivered after each visit.
What your own team can do
- Cancel credentials on the day each person leaves.
- Report a door as soon as it starts closing badly, without waiting for it to fail.
- Keep administrator credentials and installation documents somewhere safe.
Data protection
A maintainer with access to the software sees personal data. There must be a data processing agreement under the GDPR.
Have a system installed by another company? We can assess it: tell us about it.
Frequently asked questions
Is a maintenance contract mandatory?
For access control as such, generally not, but powered doors, barriers and anything linked to evacuation must be kept in good order following the manufacturer's instructions.
How often should batteries be replaced?
It depends on the model and on temperature. The sensible approach is to follow the manufacturer's stated service life and check them at every visit with a real power-cut test.
Sources
This guide is for information only and is not a substitute for legal advice or for the technical design of each installation. Regulations change: always check the current text at the official source.