FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Interior Temperature Does Not Lower


1. Blown fuse or circuit breaker.
2. Defective magnetic clutch.
3. Defective compressor.
4. Defective pressure switch.
5. Defective expansion valve.
6. Defective EPR valve.
7. Insufficient refrigerant in system.
8. Defective A/C switch.
9. Defective temperature sensors.
10. Defective rheostat.
11. Defective servo motor.
12. Defective vacuum valves.
13. Defective A/C amplifier.
14. Defective magnetic clutch relay.
15. Defective wiring or ground connections.
16. Defective vacuum circuit.
17. Defective water valve.