An air conditioner overheats when it can no longer dissipate heat, often due to dirty condenser coils, clogged filters, or restricted airflow around the outdoor unit. In Perth’s extreme heat, this causes the compressor to “trip” as a safety measure. To prevent permanent damage, turn the system off immediately and clear any obstructions around the external fans.

Symptom Likely Cause Urgency
System cuts out & trips breaker Compressor Overload / Electrical Fault High
Loud humming but no fan spin Failing Capacitor / Motor Heat Stress Medium
Warm air blowing from vents Dirty Outdoor Coils / Low Refrigerant Medium
Burning smell near unit Wiring Heat Damage / Burnt Contactor Extreme