By the SightShield team · · 3 min read
An untested alarm is a hope, not a system
Fire alarm systems sit idle most of the time, so faults go unnoticed: a dead battery, a disconnected sounder, a dusty detector, a zone left disabled after building work. Regular testing finds these before a fire does. Follow the maintenance requirements of the current IS 2189 and the manufacturer; the schedule below is a practical starting point.
A practical schedule
| Frequency | What to do |
|---|---|
| Daily | Check the panel shows normal; record and act on any fault |
| Weekly | Operate a different manual call point each week; confirm sounders work |
| Monthly | Check standby batteries and charger; look for disabled zones |
| Quarterly / half-yearly | Inspect and test a portion of detectors; check interfaces (doors, lifts, ventilation) |
| Yearly | Full service: test every detector and call point, clean detectors, test batteries under load, update records |
Common faults we find
- Standby batteries old or failed.
- Zones or devices disabled during renovation and never re-enabled.
- Detectors painted over, covered or blocked by new partitions.
- Dusty detectors causing false alarms, leading people to silence the system.
- Sounders not audible in new areas after layout changes.
- Fire alarm no longer releasing access-controlled doors.
False alarms: deal with the cause
Frequent false alarms are dangerous because people stop responding and staff start silencing or disabling the system. Each false alarm should be logged with the device, time and cause. Patterns usually point to a fix: a smoke detector near a pantry replaced with a heat detector, a dusty detector cleaned, an AC diffuser moved, or contractors briefed to cover detectors during hot work.
After renovations and layout changes
- New partitions and cabins can leave rooms without a detector or sounder.
- False ceilings can block detectors or create voids that need detection.
- Devices disabled during work must be re-enabled and tested.
- Changed room uses — a store becoming a pantry, an office becoming a server room — may need a different detector type.
- Update zone charts and the device list on the panel.
Keep records
Keep a logbook of tests, faults, false alarms and service visits. Fire department inspections and NOC renewals often ask for these records, and they protect you if there is ever an incident.
Batteries and power
The panel’s standby batteries keep the system working during a power cut. They are sized by the designer for the required standby and alarm duration, and they age — a battery that looks fine can fail under load. Check the charging voltage at each service, run a load test periodically, and replace batteries on the manufacturer’s schedule or when they fail a test.
In-house or AMC?
Weekly call-point tests can be done by your own staff after a short briefing. Detector testing, battery load tests and annual servicing need trained technicians and test equipment. An annual maintenance contract covers these and provides a written record of every visit.
Fire alarm installation and maintenance →Quick answers
How often should a fire alarm be tested?+
Check the panel daily, test a call point weekly, and have detectors and batteries tested and the system serviced at least yearly, following IS 2189 and the manufacturer.
How long do fire alarm batteries last?+
Standby batteries typically need replacing every few years; test them under load during servicing.
Why does our fire alarm keep giving false alarms?+
Usually dusty detectors, the wrong detector type for the area (e.g. smoke detectors in kitchens), or building work. A service visit identifies the cause.
Can we disable a detector that keeps giving false alarms?+
Only temporarily, with the area covered by other means, and with the cause fixed quickly. A disabled detector leaves that area unprotected.
Does fire alarm maintenance help with fire NOC renewal?+
Yes. Maintenance records and test reports support inspections and renewals by the fire department.