9
9. Troubleshooting
• Always turn off the mains supply to AC alarms before checking connections etc..
Symptom
1. Green L.E.D. not lit
2. Frequent nuisance
alarms
3. Alarm chirps every 40
seconds
4. Alarm does not sound
when test button
pressed and held.
5. Interconnected alarms
do not sound when
test button is pressed
and held.
Possible cause/solutions
a. Loss of mains power – check at Consumer Unit
for Blown Fuse or tripped Circuit Breaker.
b. Check cable harness at back of alarm, is
properly plugged in (see Battery Changing”
section).
See sections 2,3,4 and 7. If sited incorredtly/not
requlary cleaned as section 11, nuisance alarms
can occur.
See section 5 (if the hush button has been pressed
the unit will chirp for 7 minutes to indicate it is in
hush mode).
See parts 1a and 1b above. Have installer re check
wiring if Green LED is illuminated, but alarm does
not appear to function. If no Green LED check
consumer unit. Alarm with still function on battery
power, if battery is in serviceable state. <Red LED
will blink about once a minute to confirm>. Check
via Test Button.
See part 1b above – consult a qualified electrician
or your Landlord to remedy as soon as possible.
10. Useful Hints
• Smoke/heat alarms can only operate correctly if smoke particles/heat reach the
unit. Correct selection/siting and installation are covered in the installers
manual.
• Building Regulations require new homes to have 1 hard wired smoke alarm per
floor and to be interlinked. From 2000 they will additionally require an
interlinked heat alarm to be fitted in most kitchens too. i.e. 3 alarms per
property.
• With the exception of garages/kitchens/bathrooms it is recommended that
smoke alarms are fitted in every room and outside all sleeping areas too.
A professional electrician should be employed for all mains powered (hard
wired) alarms.
• If you are redecorating your home, paint fumes can contaminate the alarm –
temporarily cover the unit with a plastic bag (during this time the alarm will not
function). Never paint the alarm itself.
Only remove the bag when the paint is thoroughly dry.
• If you extend your property, review your alarm requirements.
• Smoke/heat alarms should be replaced every 10 years or sooner.
• These products are designed for domestically scaled premises.
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