There are several different signals on the smoke sensors. The most common are flashing lights on the ring around the button.
Red light
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Short flash: Sending signal. This means that it sends a message to the central. This is completely normal and will happen several times a day. |
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Rapid flash: Alarm signal. |
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Flashes every second: Silent alarm. |
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Flashes every 2 seconds: During warm-up and calibration. |
Yellow light
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Flashes every second: Calibration failed. |
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Flashes every 5 seconds: Self-diagnosis failed. |
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Flashes every 45 seconds: Low battery. |
Orange light
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Flashes every 4 seconds: Critical low battery, replace immediately. |
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