18 MULTISENSOR PLUS
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If a false alarm reoccurs after a previous deactivation, plea-
se contact the hotline at 0800 2001264 (toll-free).
Common causes of false alarms include:
Ì Dust from construction activities such as sawing and
grinding or cleaning operations.
Ì Water vapor and steam from cooking.
Ì Strong temperature uctuations (leading to condensation
of humidity).
Ì Heavy tobacco smoke and vapor from electronic
cigarettes.
Ì Welding, cutting, soldering, and other hot works.
Ì Extreme electromagnetic interference.
Ì Small insects that have entered the smoke chamber.
The Multisensor Plus signals malfunctions with the yellow
fault LED and with sound signals. If malfunctions occur in
the Multisensor Plus or if the battery voltage is too low, for
safety reasons, doors to rooms with functioning smoke de-
tectors should remain open until the functional impairment
is resolved.
Causes of malfunctions include:
Ì Painting over, taping, or covering the Multisensor Plus.
Ì Demounting for longer than 21 days.
Ì Objects within the area checked by distance control.
Ì Device defect.
Note: Simple causes (see the rst three items) can usu-
ally be resolved by the user.
For more information on Demounting, refer to the sec-
tion „Demounting & Remounting during Renovation“.
Troubleshooting
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