Car AC Not Blowing Cold Air

Your AC runs but only blows warm or room-temperature air. The cooling system isn't doing its job — usually a refrigerant or compressor issue that's worth fixing before the heat sets in.

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Common causes

Low refrigerant from a slow leak
Failed or weak AC compressor
Clogged or dirty condenser
Bad compressor clutch, relay, or fuse
Stuck blend-air door sending warm air
Clogged cabin air filter restricting airflow

Frequently asked questions

Can I drive with the AC not blowing cold?

Yes, it isn't a safety issue, but it often points to a refrigerant leak that gets worse over time.

Is it just low freon?

Often, but low refrigerant is usually caused by a leak — simply recharging without fixing the leak is only a temporary fix.

How it works

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