Why is my car aircon blowing warm?

Aircon blowing warm is usually low refrigerant (needs a re-gas), a leak, or a failed compressor. Most often it's simply lost refrigerant over the years — but if it's leaking, the leak gets fixed first so the gas doesn't just escape again.

The most common causes

1
Low refrigerant

The most common cause — the system has slowly lost gas over the years and needs a re-gas.

Needs re-gas
2
Refrigerant leak

If it keeps losing gas, there's a leak that needs finding and fixing first.

3
Failed compressor

The compressor is the heart of the system; if it fails, you get no cold air.

4
Blocked condenser

Debris or damage at the condenser stops the system shedding heat.

5
Electrical fault or blocked cabin filter

An electrical fault or a clogged cabin filter can also kill cold airflow.

Is it safe to drive? Not a safety issue — this is a comfort fix. But it's cheapest to sort before summer, when demand spikes.

What it costs in Sydney

A/C re-gas (eligible systems)from $189
Leak / fault diagnosis$129

We confirm your exact A/C system type when you book, so you only pay for what your car actually needs.

Get the cold air back.

We diagnose and re-gas eligible systems on-site — and confirm your system type before we book it in.

from $189
Best done before summer · Hills & Western Sydney
Call 0414 623 806
V

Reviewed by a Vertex mechanic — 20+ years' experience. ★ 4.9 on Google · Fixed price, every fault photographed, 12-month warranty.

Common questions

Often, yes — most systems simply lose refrigerant over the years. But if it's leaking we find the leak first, so the gas doesn't just escape again.

Before summer. Demand spikes from October, so getting in early means cold air when you actually need it.

We re-gas and diagnose eligible systems at your home or work — we'll confirm your exact system type when you book.

Not sure exactly what's wrong?

Use our free 60-second Fault Finder — get the likely cause, whether it's safe to drive, and a fair price.

Find out free →

Get the price before you book.

Any car. Anywhere. Any time — across the Hills & Western Sydney.

Call 0414 623 806