Car AC Blowing Warm Or Hot Air
The AC is on but air comes out warm or even hot. This usually means the system isn't cooling at all — a refrigerant, compressor, or control problem.
Find a TechnicianCommon causes
- Empty or very low refrigerant
- Compressor not engaging
- Condenser blocked by debris
- Cooling fan not running
- Blend door stuck on the heat side
Frequently asked questions
Why does my AC blow hot only sometimes?
Intermittent hot air often means a failing compressor clutch or an electrical fault that cuts cooling under certain conditions.
Could it be the thermostat?
The engine thermostat affects heat, not AC. Warm AC air is a cooling-circuit or control issue, not the engine thermostat.
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