Air conditioning
diagnostics.

Overview

Air conditioning faults are often blamed on the gas — and a regas does sometimes fix it — but the electrical side of the system is just as common a culprit. Compressor clutch coils, condenser fan circuits, pressure switches, control modules and climate-control wiring all play a part, and if any of them fail, the system won't cool properly even with a full charge of refrigerant.

We diagnose the electrical side of A/C systems — the part most mobile mechanics don't want to touch — so you don't pay for a regas if the real issue is a $30 sensor or a fuse.

What we diagnose

• Compressor clutch engagement issues — coil, relay and signal
• Condenser fan and radiator fan circuits
• High and low side pressure switch testing
• Climate control panel, switch and module faults
• Cabin temperature sensor and ambient sensor issues
• Blower motor and resistor problems
• A/C-related fuses and wiring repairs
• Hybrid and electric A/C compressor electrical issues

When you need this

• A/C blows warm even though it was recently regassed
• Compressor isn't kicking in when you press the A/C button
• Condenser or radiator fans not running when A/C is on
• Climate control panel buttons not working or screen blank
• A/C cuts in and out or only works sometimes
• Blower fan only runs on one or two speeds

Our process

We confirm whether the fault is electrical or refrigerant-related using diagnostic equipment, pressure checks where appropriate and live data from the climate control module. Once the electrical fault is fixed — clutch, sensor, fan, relay or module — we make sure the rest of the system is operating correctly before signing it off.

Why us for A/C electrical

Most A/C techs do the refrigerant side and call in a sparkie for electrical work. We do both ends — so if your A/C isn't cold, we can tell you straight away whether it's gas, electrical, or both, without sending you somewhere else.