# Smoke alarm chirping or expired: what now? 1. [Home](https://arlite.co/) 2. [Support](https://arlite.co/support/) 3. [Electrical](https://arlite.co/support/electrical/) 4. Smoke alarm chirping or expired: what now? **Browse support** [Support home](https://arlite.co/support/) [Solar](https://arlite.co/support/solar/)[View all](https://arlite.co/support/solar/) - [How does a solar power system work in a Brisbane home?](https://arlite.co/support/solar/how-does-a-solar-power-system-work-in-a-brisbane-home/) - [How do I turn off a solar inverter safely?](https://arlite.co/support/solar/turn-off-solar-inverter-safely/) - [Do solar panels work during a blackout?](https://arlite.co/support/solar/solar-during-power-outage/) - [Can I add a battery to my existing solar system?](https://arlite.co/support/solar/add-battery-to-existing-solar-system/) - [Hail or storm damage to solar panels: what to do](https://arlite.co/support/solar/hail-storm-damaged-solar-panels-what-to-do/) [Air conditioning](https://arlite.co/support/air-conditioning/)[View all](https://arlite.co/support/air-conditioning/) - [Why is my air conditioner not cooling or heating properly?](https://arlite.co/support/air-conditioning/air-conditioner-not-cooling-or-heating/) - [Why is my air conditioner leaking water inside?](https://arlite.co/support/air-conditioning/air-conditioner-leaking-water-inside/) - [Why does my air conditioner smell musty or like dirty socks?](https://arlite.co/support/air-conditioning/air-conditioner-smells-musty-dirty-socks/) - [Can solar panels run my air conditioner at night?](https://arlite.co/support/air-conditioning/can-solar-panels-run-my-air-conditioner/) - [What should I ask before getting an air conditioner installed?](https://arlite.co/support/air-conditioning/questions-to-ask-before-air-conditioner-installation/) [Electrical](https://arlite.co/support/electrical/)[View all](https://arlite.co/support/electrical/) - [Smoke alarm chirping or expired: what now?](https://arlite.co/support/electrical/smoke-alarm-chirping-replace-queensland/) - [Why does my circuit breaker keep tripping?](https://arlite.co/support/electrical/circuit-breaker-keeps-tripping/) - [Why does my safety switch keep tripping?](https://arlite.co/support/electrical/safety-switch-keeps-tripping/) - [Burning smell or hot power point: what to do right now](https://arlite.co/support/electrical/burning-smell-hot-power-point/) - [Why is there no hot water? 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By Aaron Midgley, Arlite Energy Last reviewed 30 October 2026 4 minute read **No DIY.** Electrical work must be done by a licensed electrician. Never open, repair, test or modify electrical equipment yourself, even if it looks simple. This guide explains what is happening; it is not a how-to. **On this page** 1. Why is my smoke alarm chirping? 2. How often do smoke alarms need replacing? 3. Who can install or replace a smoke alarm in Queensland? 4. Can I just silence a chirping alarm? 5. How should I look after my smoke alarms? 6. What to note before you call 7. Frequently asked questions A smoke alarm that chirps usually has a low battery or has reached the end of its life, and alarms are generally replaced about 10 years after the manufacture date printed on them. The manufacturer’s instructions explain the chirp. In Queensland, work on hardwired alarms must be done by a licensed electrician. ## Why is my smoke alarm chirping? The most common reasons are a low battery or the alarm reaching the end of its life. Different models use different beep patterns for different problems, such as a low battery, a fault or an alarm that has expired. Because patterns differ between brands, the best guide is the manufacturer’s manual for your model. It explains what each pattern means. If you do not have the manual, the manufacturer or retailer can help. If the alarm is sounding because of smoke A continuous alarm, a smell of smoke or any sign of fire is not a chirp. Get everyone out, stay out and call **000**. If a hardwired alarm is chirping or sounding and you cannot tell why, do not take it down or interfere with it. Contact a licensed electrician. ## How often do smoke alarms need replacing? According to Queensland Fire and Emergency Services (QFES) material, smoke alarms should be replaced 10 years after their manufacture date. The date is printed on the alarm, and the manual explains where to find it. An old alarm may still sound, but its sensor can degrade, so it may not warn you when it counts. If you do not know how old yours are, a licensed electrician can find the dates during a visit. ## Who can install or replace a smoke alarm in Queensland? It depends on the alarm. A hardwired alarm is connected to the home’s mains wiring. In Queensland, that work must be done by a licensed electrician, and the Electrical Safety Office Queensland is the regulator. Where a home has hardwired alarms, replacements need to match that setup. Some wireless units have sealed 10-year batteries and may not need wiring. Whether that suits your home depends on the rules for your property, so ask the retailer or a licensed electrician and check the QFES guidance before buying. ## Can I just silence a chirping alarm? It is best not to disable or ignore one. An alarm that has been silenced, covered or taken down gives no protection while you wait for a fix, and the chirp is telling you it needs attention. Follow the manufacturer’s instructions, and if the alarm is hardwired, ask a licensed electrician. ## How should I look after my smoke alarms? Follow your alarm’s manual for any care of the unit itself, and ask a licensed electrician about wiring or replacement. If you are not sure the alarm is working, or a hardwired alarm seems faulty, ask a licensed electrician instead of working it out yourself. If you rent, tell your landlord or agent about a chirping or faulty alarm. Rental smoke alarm requirements are specific in Queensland, so check with QFES and the Residential Tenancies Authority. For the legal requirements for alarms, see our article on *Queensland smoke alarm laws and the 2027 deadline*. ## What to note before you call 1. Chirp pattern — Note how often it chirps and whether it is one chirp or several, and which room it is in. 2. Hardwired or battery — If you know, note whether the alarms are connected to mains wiring or battery-only, and how many there are. 3. Make and model — If it is on the label of a spare alarm, or in the paperwork or manual, note the make, model and manufacture date. 4. Photograph from the floor — Photograph the alarm in place. Do not take it down or open it. ## Frequently asked questions - It is commonly a low battery or an alarm at the end of its life, but patterns vary by model. The manufacturer's manual explains what yours means. - QFES material says to replace them 10 years after the manufacture date printed on the alarm. - No. Hardwired alarm work must be done by a licensed electrician in Queensland. - Some sealed 10-year battery units may not need wiring. Ask the retailer or a licensed electrician what suits your home and what the rules require. - Tell them promptly in writing. Rental smoke alarm requirements are specific, so check with QFES and the Residential Tenancies Authority. [Learn about Electrical](https://arlite.co/services/electrical/) Related services: [Smoke Alarms](https://arlite.co/services/electrical/smoke-alarms/) ## Official guidance For the rules and safety information that apply to your home, go to the regulators and industry bodies directly. - [Electrical Safety Office Queensland](https://www.electricalsafety.qld.gov.au/) - [Energex](https://www.energex.com.au/) Was this helpful? Written by the team at Arlite Energy, a Brisbane business that designs and installs solar, air conditioning and electrical work for homes and businesses. We write these guides in plain English so you know what is happening in your home. ## Related articles - [ElectricalWhat smoke alarms does Queensland require?Queensland needs photoelectric, interconnected smoke alarms in every home, with existing homes required to comply by 1 January 2027.](https://arlite.co/support/electrical/queensland-smoke-alarm-requirements/) - [ElectricalHow do I check my electrician is licensed in Queensland?Ask for the electrician's licence number and look it up on the Electrical Safety Office Queensland's online licence search before work starts.](https://arlite.co/support/electrical/check-electrician-licence-queensland/) - [ElectricalCan I do my own electrical work in Queensland?No: in Queensland electrical work must generally be done by a licensed electrician, with only narrow exceptions for minor tasks.](https://arlite.co/support/electrical/diy-electrical-work-legal-queensland/) - [ElectricalWhat do I do in an electrical emergency, fire or shock?For fire, smoke, sparks, a shock or anyone hurt, get everyone out and call 000, and do not touch the equipment or the person.](https://arlite.co/support/electrical/electrical-emergency-what-to-do/) ## Still stuck? Tell us what is going on and we can arrange a call-out. [Book a call-out](https://arlite.co/contact/) On this page 1. Why is my smoke alarm chirping? 2. How often do smoke alarms need replacing? 3. Who can install or replace a smoke alarm in Queensland? 4. Can I just silence a chirping alarm? 5. How should I look after my smoke alarms? 6. What to note before you call 7. Frequently asked questions --- **Arlite Energy**, Unit 1, 1468 Anzac Avenue, Kallangur QLD 4503. Phone [(07) 3062 9299](tel:+61730629299), email [info@arlite.co](mailto:info@arlite.co). Monday to Friday, 7am to 5pm. Page: https://arlite.co/support/electrical/smoke-alarm-chirping-replace-queensland/ Site index for agents: [llms.txt](https://arlite.co/llms.txt), [sitemap](https://arlite.co/wp-sitemap.xml), [developer resources](https://arlite.co/developers/).