Pinpointing Power and Control Faults
Modern car AC systems are complex networks of mechanical and electrical components. When the aircon stops blowing cold, the issue is often not a refrigerant leak, but an electrical failure—a blown fuse, a faulty relay, or a sensor issue preventing the compressor from engaging.
Our Electrical System Check goes beyond simple pressure testing. Our Pretoria specialists use advanced diagnostic tools to trace power flow, check resistance, and verify signal integrity across the entire system, from the climate control unit inside the cabin to the high-pressure switches under the bonnet.
Common Electrical Components We Repair
We systematically check and replace components that commonly cause intermittent or total AC failure:
- Compressor Clutch & Coil: Diagnosing and replacing faulty clutch coils or entire clutch assemblies that prevent the compressor from turning.
- Fuses and Relays: Tracing blown fuses and damaged relays in the engine and cabin fuse boxes.
- Pressure Switches & Sensors: Testing the high/low-pressure switches and temperature sensors, which protect the system and dictate when the compressor should run.
- Blower Motor Resistors: Repairing the parts responsible for controlling fan speed.
A reliable AC system depends on accurate electronic control. By professionally addressing these underlying electrical issues, we restore consistent cooling and prevent further damage to critical mechanical parts like the compressor for our customers in Pretoria.