Subaru LEGACY 2002 Quick Reference Index page 499

COMPRESSOR
HVAC System (Heater, Ventilator and A/C)
5. TEMPERATURE SENSOR
The compressor will heat up to an abnormally high temperature if it is operated for long time when
incoming refrigerant gas is insufficient.
To prevent overheating of the compressor, a temperature sensor is provided on the compressor.
The sensor has a bimetal which causes the contacts to open when the compressor temperature
reaches 170°C (338°F) to stop operation of the compressor.
Temperature sensor internal structure
B4H0654C
AC-27