Air conditioners rarely fail without warning. Catching the early signs usually means a smaller repair bill and less time without comfort.
Warning signs to watch for
- Warm air when set to cool — often a refrigerant, sensor or compressor issue.
- Weak airflow — commonly blocked filters, a failing fan motor or duct problems.
- Water leaking indoors — usually a blocked drain line or an iced-up coil.
- Grinding, squealing or rattling — loose parts or worn bearings.
- Musty or burning smells — mould build-up or an overheating component.
- Error codes or short cycling — the system switching on and off frequently.
- Rising power bills — the system is working harder than it should.
What to do
Switch the system off and book an inspection. Continuing to run a faulty unit can turn a small, inexpensive fix into a major repair.
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