User's Manual
Power supply monitoring
What to do when an alarm is beeping:
If a smoke alarm is beeping about every 45 s with the red light blinking at the same
time, replace the battery.
Battery replacement
A fresh Alkaline battery should last for over a year. When the battery power is low and
replacement is necessary, the smoke alarm will “beep” and the red light will blink at the
same time about once per minute for at least 30 days. The battery must then be replaced.
Also, replace the battery if the alarm does not sound when the test button is pressed.
For maximum reliability, replace the battery at least once a year. When you replace the
battery you must press the test button to check that the smoke alarm is functioning
correctly. Only replace the battery with: Duracell MN1604 alkaline 9V battery.
Warning!
CONSTANT EXPOSURES TO HIGH OR LOW TEMPERATURES OR HIGH HUMIDITY MAY
REDUCE BATTERY LIFE.
Use only batteries specied in marking. Use of a dierent battery may have a detrimental
eect on smoke alarm operation. Prolonged periods of alarm will also reduce battery life.
Cleaning your smoke alarm
Clean your smoke alarm regularly. Use a soft bristle brush or the brush attachment of
your vacuum cleaner to remove dust and cobwebs from the side slots where the smoke
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enters. To clean the cover, wipe with a damp cloth and dry thoroughly.
WARNING: Do not paint your smoke alarm.
Other than the maintenance and cleaning described in this leaet, no other customer
servicing of this product is required. Repairs, when needed, must be performed by the
manufacturer.
Smoke alarm automatic self-test
The smoke chamber in the smoke alarms automatically tests itself every 40 seconds. If
the chamber is degraded it will beep without the red light blinkig at the same time. If
this happens clean the unit. If the beeping persists and the beep does not coincide with
a red light blink, return the unit for service (see Service and support).
Dust and insect contamination
All smoke alarms and particularly the optical (photoelectric) type are prone to dust and
insect ingress which can cause false alarms.
The latest design, materials and manufacturing techniques have been used in the
construction of Bellman & Symfon smoke alarms to minimize the eects of contami-
nation. However it is impossible to completely eliminate the eect of dust and insect
contamination, and therefore, to prolong the life of the smoke alarm you must ensure
that it is kept clean so that excess dust does not build up. Any insects or cobwebs in the
vicinity of the smoke alarm should be promptly removed.
In certain circumstances even with regular cleaning, contamination can build up in
the smoke sensing chamber causing the smoke alarm to sound. If this happens the