Thermal Limiting Fuse: Service and Repair
Thermal fuse1. Thermal fuse is located on the compressor clutch coil.
2. Outline:
Thermal fuse will detect clutch slip heat (184 °C off) generated by compressor faulty operation, then interrupt coil power supply to stop the clutch operation. Therefore the clutch bearing and the pulley bearing damage will not be continued, to protect the belt and engine. Once thermal fuse operates, vehicle power supply will be interrupted and the compressor will not operate. Then check the clutch coil resistance (3.0 - 3.2 Ohm) to find thermal fuse condition, and replace the clutch coil if required.