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Real alarm · Kidde · smoke

Kidde: Loud pulsing alarm that does not stop

The alarm has sensed products of combustion and is in alarm mode; the pulsing alarm carries on until the air has cleared. On Kidde’s smart alarms the LED turns red when a hazard is detected.

What you see
Red light
What you hear
Full alarm, loud and continuous

Do this first: the maker’s emergency instruction

Smoke alarm

Kidde: never ignore the alarm. First check for fire. If there is one, wake small children and leave at once by your escape plan — do not stop to dress or collect valuables; feel a door before opening it and use another exit if it is hot; stay low in smoke; meet at your meeting place; call the fire department from a neighbour’s house; do not go back in until the fire department says it is safe.

From What to Do When Your Smoke Alarm Sounds.

Carbon monoxide alarm

Kidde: a sounding CO alarm means carbon monoxide, which can be fatal. Press the TEST/RESET button, call 911 or your local fire department, and move at once to fresh air — outside or by an open door or window. Account for everyone, and do not go back in until emergency services have arrived, the home has been aired out and the fire department gives the all clear.

From What Should I Do When My Carbon Monoxide Alarm Sounds?.

What Kidde says to do about this signal

  1. Treat it as a fire until you have checked: Kidde’s first step is to check for fire.
  2. If there is no fire and the alarm keeps sounding, Kidde’s nuisance-alarm causes are a dirty sensing chamber, humidity or steam, and power interruptions; its guidance is to clean the alarm (compressed air on the vents) once you are sure it is not a real alarm.

From What is Causing My Smoke Alarm to Sound, Beep, or Chirp? and What do the different LED colors mean on my Smart smoke device?. If your alarm’s pattern is not exactly this, check the manual for your model: Kidde models do not all use the same signals.

Other Kidde signals

Real alarm on other brands

The same state sounds and looks different on each make — which is why a chirp pattern cannot be read without the brand.

Sources

Every line on this page comes from Kidde’s own documents, read on the date shown. Nothing is taken from third-party code sites or other makes.