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5. Testing, maintenance and readiness for use
5.3 Power supply – monitoring
5.3.1 What to do if an alarm beeps
1. If the smoke alarm beeps approx. every 32 seconds and the red or yellow LED flashes
at the same intervals, it means that the lithium battery is almost flat and the smoke
alarm needs to be replaced.
2. In models with a 10-year lithium battery and radio modules (installed), if the green
LED (Ei650M radio module) or blue LED (Ei600MRF radio module) flashes every
10 seconds, this indicates that the radio module battery is flat and the radio module
must be replaced.
5.3.2 Radio module alarm
If all radio alarms sound for 2 seconds every 4 hours, it means that at least one of the
batteries in the system is flat.
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