Changing The Compressor Of An Air Conditioner

An air conditioner is a complex unit that contains many parts such as compressor, condenser, receiver dryer, evaporator, valves, and tubes. Any fault or defect in any of these will cause the unit to malfunction. The compressor can be equated to the heart of an air conditioner. It works like a pump that takes in refrigerant, pressurizes it, and sends it to other parts of the air conditioner. A faulty compressor may result in complex breakdown of an air conditioner.

Certain conditions when replacing compressor

• The compressor contains many moving parts such as pistons and valves that are used to take in refrigerant and compress it. These parts can sometimes come apart and leak metallic debris to other parts of the air conditioner. Consequently, when replacing an air conditioner, the orifice tube and the receiver dryer should also be changed as some of the debris may have accumulated there. A dirty orifice tube and dryer can ruin a new compressor. Replacing such a compressor will not be covered by warranty.

• A compressor to work requires a clutch, electric connector, and a bearing. It has a long belt that drives the clutch. Sometimes the clutch gets burnt due to overheating or the bearing can fail. In such circumstances it is better to replace the compressor than repair the clutch or bearing. Sometimes replacing the entire compressor with a re manufactured one can be cheaper than replacing an individual clutch or bearing.

• The compressor has a seal to prevent leakage of refrigerant or lubricant. Sometimes this goes bad. In such situations the compressor should be repaired as there is no way to repair seal.
The cost

The average cost for replacing a compressor of an air conditioner is between $708 and $958. You may have to pay an additional labor costs, roughly between $149 and $189. The parts may cost between $559 and $769.

The process

• The pressure of the air conditioner is checked.
• The compressor is checked for power and ground.
• If compressor is defective, refrigerant in the air conditioner is removed
• Next the compressor, receiver drier, orifice tube, and/or expansion valve are taken out.
• The AC System is cleaned of all foreign particles and debris.
• The new compressor, receiver drier, and orifice tube are installed.
• The AC system is evacuated and recharged.
• The tubes are checked for leaks.




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