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Please also note that the last bit of turning may be a little difficult, so don’t stop turning when it gets a little hard - that is exactly the point where you have to turn a little bit more in order to activate the product. Please see the photo included in linked video on how far the mounting plate must be turned in order it to press down "the power switch button”. until you hear/feel a few clicks that are created when the “ 4 rear cover hangers/brackets” are moving on the ridged area of the mounting plate.
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Normally this is done by turning the mounting plate far enough on the clockwise direction (i.e. Further guidance: In order to the smoke alarm to get power from the battery, the little "power switch button" sticking out of the rear cover MUST be pressed down. Please check the vacuum cleaning instructions by clicking the product picture above, and then navigating to the correct instructions for the product. In the two other cases (3 small beeps once in a minute, and continual louder alarm signal) its is likely that some tiny dust particle or a small insect has gotten inside the smoke alarm smoke detection chamber, and the smoke alarm needs vacuum cleaning. In the first case (one small beep once a minute), the beep is likely to be related to the battery getting empty, and it is time to change the product to a new one. If your Kupu 10 or Lento 10 product beeps, please check how it beeps: in such a case, please check the instructions under the correct product heading. If your smoke alarm has replaceable batteries, it has to be Original -series model, either Kupu Original or Lento Original.
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Please note that new Jalo Helsinki Kupu 10 and Lento 10 smoke alarms have a fixed, non-changeable, battery that is expected to last over 10 years.
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