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Pyrexx alarm signals: beeps, chirps and lights

Pyrexx, a Berlin company, makes the PX-1 smoke alarm and installs and services it in rented flats for landlords, so many people meet it as a tenant. The PX-1 is sealed: its battery cannot be changed. In normal use it shows no light and makes no sound. Its two fault signals, one or two short beeps every 90 seconds, both mean it has at most 60 days of reliable warning left and must be replaced.

If it is sounding a full alarm: the maker’s emergency instruction

Smoke alarm

Pyrexx: keep calm and warn everyone you live with. Help children, disabled, elderly and sick people. Close all windows and doors behind you, leave the house immediately without using lifts, and call the fire brigade on 112. The alarm does not call the fire brigade for you.

From PX-1 Rauchwarnmelder Gebrauchsanleitung / Smoke Alarm Device User Manual.

The Pyrexx alarm on these pages senses smoke only. For a carbon monoxide alarm, follow its own maker’s instruction.

Every Pyrexx signal we could source, side by side

7 signals. Tap what it means to jump to the drawing, Pyrexx’s steps and the source. If your alarm’s pattern is not exactly one of these, check the manual for your model: Pyrexx models do not all use the same signals.

What you seeWhat you hearWhat it means
No light named by the makerFull alarm, two beeps then a pause, repeatingReal alarm: Alarm: the PX-1 has detected smoke.
No light named by the makerSilentHush or silence mode: Alarm stop: pressing the test/stop button switches the alarm off for 10 minutes, whether or not there is a fire.
No light named by the makerOne chirp about every 90 secondsLow battery: Battery error: the PX-1 has started using its energy reserve.
No light named by the makerTwo chirps about every 90 secondsFault: Contamination: the alarm is so dirty that it can no longer readjust its detection electronics.
No light named by the makerOne chirp, no fixed intervalNormal operation: Start-up: the PX-1 has been switched on.
No light named by the makerOne chirp, no fixed intervalNormal operation: Test passed.
No light named by the makerSilentNormal operation: Normal: the PX-1 shows no light and makes no sound in normal operation.

Loud double tone (short beep, long beep) every second

Real alarm · smoke

No light named by the maker; Full alarm, two beeps then a pause, repeating

Alarm: the PX-1 has detected smoke. The PX-1 manual lists a temperature alarm, above 60 °C, among the same loud alarm tones.

What you see
No light named by the maker
What you hear
Full alarm, two beeps then a pause, repeating

Do this first: Pyrexx’s smoke alarm instruction, top of this page

What Pyrexx says to do about this signal

  1. Follow the fire instructions at the top of this page.
  2. If there is no fire, Pyrexx lists the usual causes: household dust from carpets and textiles, pollen, building or sanding dust, insects that got past the insect screen, strong cooking or frying fumes, room fragrance or insect sprays, extreme temperature swings, or strong electromagnetic radiation close by. Cigarette smoke only sets it off close up and in high concentration. Stop the alarm, air the room, vacuum the alarm carefully, and tell the neighbours so they do not call the fire brigade by mistake.

Source:

Alarm stopped with the test/stop button

Hush or silence mode · smoke

No light named by the maker; Silent

Alarm stop: pressing the test/stop button switches the alarm off for 10 minutes, whether or not there is a fire. If there is still a risk of fire after that, the switched-off alarms sound again.

What you see
No light named by the maker
What you hear
Silent

If it is sounding a full alarm instead: Pyrexx’s emergency instruction, top of this page

What Pyrexx says to do about this signal

  1. Only stop the alarm once you are sure there is no fire.

Source:

One short beep every 90 seconds

Low battery · smoke

No light named by the maker; One chirp about every 90 seconds

Battery error: the PX-1 has started using its energy reserve. Pyrexx says it can only keep giving a reliable warning for at most 60 more days.

What you see
No light named by the maker
What you hear
One chirp about every 90 seconds

If it is sounding a full alarm instead: Pyrexx’s emergency instruction, top of this page

What Pyrexx says to do about this signal

  1. Press the test/stop button to silence the message for 24 hours.
  2. Have the alarm replaced within those 60 days. The battery cannot be changed, because the PX-1 is a closed unit that must not be opened. In a rented flat where Pyrexx maintains the alarms, its tenant page lists a customer portal and a hotline for a service appointment.

Source:

Two short beeps every 90 seconds

Fault · smoke

No light named by the maker; Two chirps about every 90 seconds

Contamination: the alarm is so dirty that it can no longer readjust its detection electronics. It can give a reliable warning for at most 60 more days.

What you see
No light named by the maker
What you hear
Two chirps about every 90 seconds

If it is sounding a full alarm instead: Pyrexx’s emergency instruction, top of this page

What Pyrexx says to do about this signal

  1. Press the test/stop button to silence the message for 24 hours.
  2. Have the alarm replaced within those 60 days; Pyrexx says replacing it is necessary. In a Pyrexx-maintained rented flat, book the appointment through Pyrexx’s tenant portal or hotline.

Source:

One short tone when the activation button is pushed in

Normal operation · smoke

No light named by the maker; One chirp, no fixed interval

Start-up: the PX-1 has been switched on. You hear it once, when the activation button is pushed in flush.

What you see
No light named by the maker
What you hear
One chirp, no fixed interval

If it is sounding a full alarm instead: Pyrexx’s emergency instruction, top of this page

What Pyrexx says to do about this signal

  1. Nothing to do. If the alarm cannot be activated, Pyrexx says to replace it.

Source:

Test tone while you hold the test/stop button for 2–3 seconds

Normal operation · smoke

No light named by the maker; One chirp, no fixed interval

Test passed. If you repeat the test within 10 minutes, some PX-1 variants give only a short double test tone.

What you see
No light named by the maker
What you hear
One chirp, no fixed interval

If it is sounding a full alarm instead: Pyrexx’s emergency instruction, top of this page

What Pyrexx says to do about this signal

  1. Test it at least once a year. If no test tone sounds, Pyrexx says the alarm must be replaced.

Source:

No light and no sound

Normal operation · smoke

No light named by the maker; Silent

Normal: the PX-1 shows no light and makes no sound in normal operation. It checks itself once a minute and only signals when something is wrong.

What you see
No light named by the maker
What you hear
Silent

If it is sounding a full alarm instead: Pyrexx’s emergency instruction, top of this page

What Pyrexx says to do about this signal

  1. Nothing to do, apart from the yearly test, a look at the smoke inlets (not blocked by dust, dirt or paint) and cleaning.

Source:

Sources

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

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