An AOV service should assess the installed smoke-control equipment, test its agreed functions and produce a clear record of results and defects. The exact checklist depends on the system type, manufacturer and documented design.
1. Review the system information
Before testing, establish which equipment is installed and how it should operate. Useful documents include the operating and maintenance manual, asset list, previous reports, commissioning records and cause-and-effect information. Identify missing documents and agree any limits to the visit.
2. Inspect the equipment and access
The agreed inspection may cover accessible vents, actuators, controls and cabling for visible damage, obstruction or deterioration. Confirm that the equipment can be reached safely. A roof vent or concealed component may need access arrangements agreed in advance.
3. Check controls and power supplies
Where included in the scope, check panel indications, fault reporting, power supplies and standby batteries using the manufacturer’s procedure. Record the results and any recommended follow-up. Battery replacement or other remedial work should be clearly distinguished from routine servicing.
4. Test vents and actuators
Observe the relevant opening and closing functions and compare them with the intended operation. A visual observation alone may not cover every performance requirement. Record equipment that cannot be operated or inspected and explain why.
5. Test manual controls and interfaces
Check the applicable manual controls and agreed detection or fire alarm interfaces. Coordinate testing with the building manager and other contractors where necessary. System links vary, so the test plan should follow the installation’s documentation.
6. Assess coordinated operation
Where within the agreed scope, test the system’s sequence against the documented cause and effect. On a mechanical smoke-control installation, the relevant checks may include fans and dampers as well as controls. Not every AOV installation contains these components.
7. Restore the system and report results
After testing, confirm the system’s status and communicate any remaining faults or limitations to the building manager. The report should identify the equipment covered, checks completed, results, defects, inaccessible areas and recommended actions.
What is not automatically included?
Repairs, replacement batteries, specialist access equipment, design verification, major alterations and work on third-party systems may need a separate quotation. Ask your contractor to confirm inclusions before the visit so that a service price can be compared fairly.
How should you prepare for the visit?
- Provide the site address and a building contact.
- Share the system make and available records.
- Identify known faults and recent changes.
- Arrange safe access to the relevant equipment.
- Agree how tests will be coordinated with occupants and connected systems.
How often is servicing needed?
Use the manufacturer’s instructions and the building’s maintenance programme to set the schedule. Routine user checks supplement specialist maintenance. Our guide to why AOV systems need servicing explains the distinction.
Arrange AOV servicing with AK Fire Safety
Explore our AOV installation, servicing and maintenance service. To discuss your building, send its location, the system make, any known faults and the latest service report if available.
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Further guidance
See GOV.UK guidance on fire safety equipment, maintenance and testing and the Smoke Control Association. Use the operating and maintenance documents for your own system when planning work.
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