When your car's air conditioning stops keeping up, it's rarely just "low on freon" — that's usually a symptom of a leak somewhere in the system, not a standalone fix. Commack Auto Works diagnoses A/C issues to find the actual cause before recommending a repair.
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A/C System Diagnostics
Common A/C Complaints
- A/C blowing warm or room-temperature air
- Weak airflow from the vents even with the fan on high
- A/C works intermittently or cuts in and out
- Unusual smell when the A/C is running
- Strange noise when the A/C compressor engages
- Visible refrigerant residue near hoses or fittings
How A/C Systems Fail
A car's A/C is a sealed system — refrigerant doesn't get "used up" under normal operation. If a system is low on refrigerant, it's leaking somewhere, whether from a worn hose, a failing seal, or a damaged component. Simply adding refrigerant without finding the leak means the same problem returns.
Other common causes of A/C failure include a failed compressor, a clogged or leaking condenser, electrical issues with the compressor clutch, or a faulty blend door affecting airflow.
Diagnosing the System
We check system pressures, look for signs of a leak, and inspect the compressor and related components to determine what's actually causing the loss of cooling before recommending a repair.
Getting Ready for Summer
A/C problems are easiest to catch before the weather turns hot. If your A/C was weak by the end of last season, it's worth having it checked before you need it again.
A/C blowing warm instead of cold? Walk in and we'll diagnose the system rather than just topping off refrigerant.
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Frequently Asked Questions
Why is my car A/C blowing warm air?
This is most often caused by low refrigerant due to a leak, a failing compressor, or an electrical issue preventing the compressor from engaging. We diagnose the system to identify which one it is.
Can you just add refrigerant to fix my A/C?
If the system is low, it's leaking somewhere. Adding refrigerant without finding and addressing the leak is a temporary measure at best — we look for the actual cause first.
How long does A/C diagnosis take?
A basic system check can often be done same-day. Finding a specific leak source can take longer depending on how the system is behaving.