A defibrillator that isn’t properly maintained is a defibrillator that might fail when it’s needed most. Whether you’ve purchased your AED outright or you’re on a rental plan, regular maintenance is essential to ensure your device is always ready for action.

Why AED Maintenance Matters

AEDs are robust, reliable devices, but they have consumable components that degrade over time. Electrode pads have adhesive that dries out, and batteries lose charge even when the device isn’t in use. A defibrillator with expired pads or a depleted battery may not function correctly in an emergency — and that’s a risk no organisation should take. Proper maintenance also demonstrates due diligence from an employer’s health and safety perspective, helping to fulfil your obligations under the Safety, Health and Welfare at Work Act 2005.

Monthly Maintenance Checklist

Every AED should be visually inspected at least once a month. Here’s what to check:

Status Indicator: Most AEDs have a readiness indicator — typically a green light or tick. Check that this shows the device is ready for use. A flashing warning light or audible chirping sound indicates a problem that needs attention.

Electrode Pads: Check the expiry date printed on the pad packaging. Pads typically last between two and five years depending on the brand. Ensure the packaging is sealed and undamaged. Browse replacement pads for all major brands.

Battery: Check the battery expiry or install-by date. Even unused batteries have a shelf life. Some AEDs — like the Cardiac Science Powerheart G5 — feature batteries with extended life, but all batteries need eventual replacement.

Physical Condition: Inspect the unit for any visible damage, cracks, or contamination. Ensure all cables and connectors are intact.

Storage Unit: If your AED is housed in a wall cabinet or outdoor case, check that the cabinet is clean, clearly signposted, and that the door opens easily.

Accessories: Confirm that any accessories such as a rescue kit (containing scissors, razor, gloves, and a CPR mask) are present and in date.

Annual Servicing

In addition to monthly checks, AEDs should receive a thorough annual service. This includes a full functional test, software updates (where applicable), and replacement of any components approaching their expiry date. Heartsafety Solutions offers comprehensive AED maintenance plans that take the guesswork out of keeping your device compliant and operational.

Assigning an AED Guardian

Designate a specific person (and a backup) as your AED Guardian. This individual is responsible for conducting monthly checks, logging maintenance records, ordering replacement parts, and ensuring the AED is returned to its storage location after any use or training exercise. Providing your AED Guardian with proper training and ongoing support is essential.

What to Do After Your AED Is Used

If your AED has been used in an emergency, it will need new electrode pads immediately, and the battery should be checked. Order replacement parts promptly to ensure the device is operational again as quickly as possible. You should also document the incident and debrief with your first aid team. Contact Heartsafety Solutions for rapid replacement parts and post-incident support.