Smoke Alarms FAQs

Smoke Alarms FAQs

Helping protect Kiwi families

Frequently Asked Questions

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Is the 755PSMA4 inter connectable with the old PDL SD100 Smoke alarm?

Yes, the PSMA4 range is backward compatible with the PSMA2 and SD100 range of smoke alarms.

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Why does my smoke detector 755SMA keep false alarming?

Smoke detectors are very sensitive to insects and dust particals. In the event of false alarming you may need to clean your alarm. The alarm can be vacuumed or brushed with a soft brush to remove dust, dirt or kitchen grease that has accumulated. Apply a small amount of insect surface spray to a cloth and wipe around alarm/s every 3-6 months to mitigate insect ingress. It is recommended that the smoke alarm is inspected monthly to ensure it is free from dirt, dust and insects. If this doesn't resolve the false alarming you may be requied to have it serviced and/ or replaced if necessary.


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How to troubleshoot 755PSMA4 Smoke Alarm if it is beeping after replacing the battery ?

Red LED flashing once every 40 seconds with one audible beep is a low battery warning.
Replace the 9 V d.c. battery with a new one. (It is recommended to replace the battery annually)
To snooze a low battery beep for 10 hours, press the Test/Hush button for 3 seconds.

And if the smoke alarm continues to beep once every 40 seconds after a new battery replacement,
  • Unclip the alarm from the base.
  • Remove the new battery.
  • ​​​Press and hold the test button for 20 seconds. 
  • Replace the new battery and clip it back to the base.

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What causes the smoke alarm to continuously beep ?

The dust inside the smoke alarms can cause a continuous beep.
Please follow the regular maintenance check to avoid this.

Vacuum the smoke alarms using a soft brush attachment-
Keeping your smoke alarm free of dust particles, dirt, kitchen grease or cobwebs will help you reduce false alarms and ensure any smoke can easily reach the internal sensing chamber.

Clean and wipe down around unit-
Clean around the smoke alarm unit and remove any insects or other contamination which may have occurred. Spray bug repellent on a cloth and wipe the ceiling around the smoke alarm to act as a future bug deterrent. Clean every 3-6 months to mitigate insect ingress.


Attached is the Clipsal smoke alarm troubleshooting guide for more info.

Clipsal Smoke Alarms.png

How do you Interconnect a 755RFB2 smoke alarm bases with a 755LPSMA4 smoke alarm?

See the below "How to video".

The part number for the products seen in this video is a 755RFB2 base and a 755LPSMA4 smoke alarm.

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Smoke alarm:
Wireless base:

Is your Smoke Alarm older than 10 years?

...then it's time to install a new one!