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i series only: If you are not able to replace the alarm straight away, you can press the

test/silencer button to switch off the beep and the yellow LED for 12 hours. This step

can be repeated until the battery goes completely flat, but the alarm should be replaced

as quickly as possible.

6.2.2 Contaminated smoke chamber

If the alarm goes off when there is no smoke, press the test button to silence the alarm

for 10 minutes (as described in section 6.1.5). If the alarm goes off again despite this,

it may be contaminated.

i series only: Press the test/silencer button within four minutes after the alarm goes

off again and this will enable the alarm to compensate for the contamination in the

smoke chamber. This normally solves the problem.

If the alarm goes off for a third time, it is contaminated excessively and must be

replaced. If you are not able to replace the alarm straight away, press the test button

within four minutes after the alarm goes off (for the third time) to silence the alarm

for eight hours – it will emit two short beeps (one second apart) every 10 minutes to

indicate that it has been deactivated.

Ei Electronics Ei650i Operating Instructions

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