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Maintenance

7 signs your air conditioner needs attention

Warm air, strange noises and rising bills are early warnings. Catching them early can prevent a mid-summer breakdown.

DriveGuard Home Warranty · November 3, 2026 · 4 min read

7 signs your air conditioner needs attention

Your air conditioner usually gives warning signs before it fails. Watch for these.

1. Warm air from the vents

Low refrigerant or a failing compressor can leave you with air that never feels cold.

2. Weak airflow

Clogged filters, blocked ducts or a failing blower motor can all reduce airflow.

3. Unusual noises

Grinding, squealing or banging sounds often point to worn parts.

4. Frequent cycling

A system that turns on and off constantly wastes energy and wears out faster.

5. Water around the indoor unit

A clogged condensate line can cause leaks and water damage.

6. Musty or burning odors

Odors can signal mold in the ducts or an electrical problem.

7. Rising energy bills

An inefficient system works harder — and costs more — before it fails.

If you notice any of these and have a DriveGuard plan, request service in My DriveGuard.

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DriveGuard plans cover systems and appliances for one flat service fee.

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