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6. MAINTAINING YOUR CO ALARM
Clean the outside case by occasionally wiping with a clean damp cloth, (disconnect the mains supply at
the distribution/fuse board first). Do not use any cleaning agents, bleaches, detergents or polishes,
including those in aerosol cans. Avoid spraying air fresheners, hair spray, paint or other aerosols near the
CO Alarm. Do not place air fresheners near the unit.
Use the narrow nozzle of a vacuum cleaner to remove fluff and other contamination from the cover slots
to ensure CO gas can reach the sensor.
Caution: Do not paint the CO Alarm.
Remove the CO Alarm when decorating. Do not allow water or dust to contaminate the alarm.
Warning: Do not open or tamper with the CO Alarm. There are no user serviceable parts inside apart
from the sensor module - see below. This can damage the unit and may expose the user to shock or fire
hazards.
How to disconnect and remove the alarm:
(1) First disconnect the mains supply to the CO Alarm circuit at the distribution/fuse board.
(2) Remove tamperproofing screw if fitted (see Figure 1).
(3) Release catch, as shown in Figure 1, and slide unit off mounting plate.
SENSOR MODULE REPLACEMENT
Replace the sensor module after 5 years operation (or by the date for sensor replacement on the
side of the unit).
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