Ask the Mechanic on:
Air Conditioning Blows Hot ??
Any automotive air conditioning repair system employs four basic parts-a mechanical compressor, driven by the vehicle's engine; an expansion valve, which is a restriction the compressor pumps against; and two heat exchangers, the evaporator and the condenser. In addition, there is the refrigerant that flows through this system. If the system is low on the refrigerant ( R134a for automotive use) than the system will blow hot air. In most cases the vehicles system can be recharged. Check for leaks before recharging.
Air Conditioner blows warm air
- Air conditioner system is discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
- Air conditioner compressor clutch not engaging. Check compressor clutch wiring, electrical connections and compressor clutch, and repair or replace as necessary.
No air coming from air conditioning vents
- Check the air conditioner fuse and replace as necessary.
- Air conditioner system discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
- Air conditioner low pressure switch defective. Replace switch.
- Air conditioner fan resistor pack defective. Replace resistor pack.
- Loose connection, broken wiring or defective air conditioner relay in air conditioning electrical circuit. Repair wiring or replace relay as necessary.
Featured Reference Link : Auto Air Conditioning Repair Cost