Various brands of smoke alarms Alarm may not sound. Most of these alarms were installed during new-home construction. Consumers can identify affected product by removing alarm cover and looking for date code and model number on back of device.
Some alarms lack brand name.
Consumers should then use model number as guide to determine if it's subject to recall. AC-powered smoke detectors Corrosion on electrical contacts could prevent alarm from sounding in fire. Detectors were wired into the electrical circuits of new homes, apartments, and hotels. Battery-operated smoke alarms of various brands May not sound in fire. Label with model information and date code appears on back of detector.