Open Tue–Sat

(510) 209-0748 Book online
My store Mission Blvd, Union City

Open Tuesday to Saturday from 9 am

(510) 209-0748 Directions

Repair

A/C repair

When the air conditioning blows warm, the usual cause is low refrigerant from a leak or a failed part. An A/C service finds the cause, fixes it and recharges the system to the maker's specification.

Call for a quote

A car's climate control display set to A/C auto

Step by step

How we do it

A/C repair, step by step: from warm air at the vent to handing the keys back
  1. Warm air

    The air from the vents is warm, measured with a thermometer in the vent.

  2. Gauges on

    Gauges connect to the system's service ports to read its pressures.

  3. Find the leak

    A dye in the system glows under a UV lamp and shows where it leaks.

  4. Repair

    The refrigerant is recovered, then the leaking part or seal is repaired or replaced.

  5. Recharge

    Air and moisture are pumped out, then the system is recharged with the right amount of refrigerant.

  6. Cold air

    Cold air comes from the vents, checked with the thermometer again.

  7. Back to you

    The keys go back to you.

Signs you need it

  • Air from the vents is warm or only slightly cool
  • The cooling comes and goes
  • A new noise when the A/C is on

What’s included

  • Checking system pressures with gauges
  • Leak testing
  • Repairing the leak or the failed part
  • Recharging the refrigerant to specification
  • Checking the air temperature at the vents

Ready to book?

Pick a drop-off time online, or call (510) 209-0748.

Schedule service

United Auto Tech, Mission Blvd

Tell the shop the year, make and model of your car and what it is doing.