days. We endeavour to keep you updated on your delivery, however, please be advised that this might just be a named day service within normal working hours. Make sure you look after your smoke alarms by changing batteries and testing the unit on a regular basis. We offer free reminder services to ensure you remember to do your alarm test and to change the battery.

If a smoke detector is removed from the base and the battery is also removed, the alarm might still hold some residual charge and beep for up to a minute. Pressing the test button for about 10 seconds will discharge the circuitry.The Alarm automatically monitors the battery every 40 seconds. If it is depleted it will give a short beep every 40 seconds. For most Ei Electronics mains powered smoke alarms, a replacement kit is available containing a compatible smoke alarm, and in the case of Ei140 and Ei160 alarms, the new head just slides onto the existing base without the need for an electrician.

The new alarm can interlink with any other Ei140/140RC series alarms remaining in your system, along with many other Ei Electronics / Aico models. The more modern optical sensor technology in the Ei146e is less susceptible to false alarms, making it suitable for use in a wider range of locations such as rooms adjacent to kitchens, hallways, landings, bedrooms, and living areas.The amber light may flash for one of two reasons; firstly it may be indicating the base is in House Code mode (used while setting up new networks of radio-interlinked alarms). House Code mode is automatically exited after 30 minutes or can be manually exited by inserting a screwdriver in the House Code slot and holding the House Code switch until the amber light turns on. Once a solid amber light appears release the switch and the amber light should stop flashing. Interruptions of the mains power can be due to several reasons, including incorrect wiring (e.g. if the power supply comes from the lighting system and the alarm is incorrectly wired to the switched part of the circuit or when neutral/earth wiring are reversed), tripped fuses/circuit breakers, loose wires and general power failure. Electrical spikes can also cause false alarms or damage the smoke alarms. Smoke detector is off the ceiling and the battery has been removed but the beeping continues There are some geographical areas that we are unable to offer next day delivery as standard, such as the Scottish Highlands. We are unable to guarantee next day delivery to the following post codes AB31, AB33-38, AB44-56, IV, HS, KA27-28, KW, PA20-88, PH17-26, PH30-44, PH49-50, TR21-25 and ZE. In an interlinked system when one unit detects smoke, all alarms sound. To silence the alarms in case of a false alarm, press the hush button on the unit that has detected the smoke. This will silence all interlinked alarms. Are the alarms less than ten years old? Once older they can become erratic. Replacement units are easy to fit