Common causes
- Refrigerant leak
- Compressor or clutch not engaging
- Condenser fan not working
- Electrical faults like a relay, fuse or pressure switch
- Blend door problems that mix in heat
Why a top-off isn’t a repair
A/C is a sealed system. If it’s low, refrigerant got out somewhere. We check for the leak first, then recharge after repairs.
Simple checks you can do
Make sure the A/C button is on and the temperature is set to cold. Listen for the compressor clutch clicking on when the A/C is turned on, and check whether the fan in front of the radiator runs. Note whether the air gets colder when you drive versus when you’re stopped.
These details help narrow down whether the problem is refrigerant, the compressor, airflow or electrical.
Southern California heat
In Fullerton summers, a weak A/C is more than uncomfortable. We test the system, find the leak or failed part, explain the repair and quote before we work, then recharge after repairs.
Serving Fullerton and nearby
Cedillo’s Classic & Auto Repair is a family-owned shop at 1010 W Commonwealth Ave in Fullerton, serving Fullerton, Anaheim, Placentia, Brea, Buena Park, La Habra, Yorba Linda and Orange. Owner Rafael Cedillo is an ASE Certified Master Technician with more than 25 years of experience.
Frequently asked questions
Why does my A/C work on the highway but not in traffic?
That can point to the condenser fan or airflow, since there’s less air moving at low speed.
Is it bad to run the A/C low on refrigerant?
It can be hard on the compressor. Have it checked.
Related services
We make it easy to do business with us, with peace of mind and trust. Give us a try, and if it’s not something we can help with, we’ll point you in the right direction. Call or text (714) 681-0101, or send a service request online. We’re open Tuesday through Friday, 9 AM to 6 PM, and Monday and Saturday by appointment.