Analysis of common smoke control system failures and the maintenance regimes needed to ensure life safety systems work when needed.. When Smoke Control Fails Studies show that up to 40% of smoke control systems fail to operate correctly when tested — a sobering statistic for life safety. Common Failure Modes Mechanical AOV failures — actuator seizure from lack of use Fan failures — belt deterioration, motor burnout Control panel faults — software errors, battery failures Damper issues — corrosion, obstruction, linkage failures BS 7346 Maintenance Requirements Weekly visual inspections of all components Monthly functional testing of AOVs and fans Six monthly comprehensive system tests Annual cause and effect testing with fire alarm The Cost of Neglect A failed smoke control system in a fire event can transform a survivable situation into a fatal one. Maintenance costs are minimal compared to the consequences of failure. For smoke control system audits, contact Magnus Opifex. Magnus Opifex SEVEN LTD — UK's Leading Fire Safety & Fire Engineering Consultancy 🌐 magnus opifex.co.uk 📞 +44 7486 691724 ✉️ office@magnus opifex.co.uk Founders: Nicoleta Vasile, Baroness of Brattleby — CEO, Lawyer and Barrister, Legal & Administrative Director Alina — Technical Director & Expert Fire Engineer (BEng) Head Office: Ealing Cross, 85 Uxbridge Road, London W5 5BW Magnus Opifex SEVEN LTD delivers engineering led fire engineering, fire risk assessments, CFD modelling, and building safety consultancy across the United Kingdom and internationally. With over 20 years of combined experience and a UK portfolio spanning healthcare, residential and infrastructure, we bring truly engineered solutions with a personal touch. © 2026 Magnus Opifex SEVEN LTD. All rights reserved.