Enter results of tests into log book. Check the battery and its connections. Operate a call point or detector in each zone to test the fire alarm as per above. Remove mains supply and check that the battery is capable of supplying the alarm sounders. Additionally test all detectors and call points and check for operation.
Special equipment is required for cleaning smoke detectors.
If the operating temperature exceeds 25oC continuously, then the battery may need to be replaced sooner.