AC Blowing Hot

First we need to know what makes AC systems work normally...

Freon (also known as refrigerant) is the chemical compound that powers your car’s air conditioning system. Think of it like the lifeblood of the AC system—it’s what makes the air coming from your vents cold.

When your car AC is working properly, Freon cycles through the compressor, condenser, expansion valve, and evaporator, changing from a gas to a liquid and back again. This process absorbs heat from the air inside your car and releases it outside, leaving you with cool, comfortable air.

So how does this relate to you?

Low refrigerant means your system can't remove enough heat from the cabin air—so the vents blow warm instead of cold.

You might feel cool air briefly, then nothing. Or the cooling may be inconsistent depending on engine speed or outside temperature.

If your car’s AC isn’t blowing cold air, don’t sweat it. Freon is a vital part of your air conditioning system, and when it’s low, your comfort suffers—and so does your system.

How does LA Mobile Mechanic perform this Repair?

1. AC Performance Test – We check vent temperature and system pressure.

2. Leak Detection – Using UV dye and electronic sensors, we find where the Freon is escaping.

3. AC Recharge – If needed, we vacuum the system, refill it to spec, and test for proper cooling.

4. Component Repair – If there’s a leak, we’ll recommend repair or replacement to prevent it from happening again.

We bring all the tools and tech right to your location, so you can stay cool without the hassle.

Call Los Angeles Mobile Mechanic Today: (626)-587-2700