Causes of AC Compressor Failure

A compressor is vital for pressuring and circulating AC refrigerant for heat expulsion. However, if the component malfunctions, it may significantly affect the unit's performance. You should know that failure to address a compressor malfunction in good time can cause a system breakdown. Therefore, you want to hire an AC contractor to fix the underlying issue and prevent secondary damage to other components. The following are the causes of AC compressor failure.

Inappropriate Refrigerant Levels

The compressor pumps the refrigerant under pressure, forcing it to flow from the coils to the condenser unit in a closed loop. This enables the coolant to absorb heat and dissipate it outdoors. However, if the refrigerant is inadequate, the system will work harder than it should to cool your space. This increases strain on the appliance's compressor, causing it to overheat and burn out. 

Too much coolant increases pressure in your system and can cause compressor failure. If you suspect you have inappropriate refrigerant levels, an AC technician can regas your unit to restore cooling. 

Dirty or Frozen Coils

Due to its placement, the condenser unit is subject to infiltration by outdoor elements. Over time, plant matter and other debris can lodge in the outdoor unit. This may inhibit the refrigerant from dispelling heat, leading to heat build-up. Consequently, the compressor will heat up and break down. 

Additionally, the evaporator coil may freeze due to dirt accumulation. This results in refrigerant absorbing less heat, forcing the compressor to overwork. With this in mind, you must clean your coils regularly to aid in proper heat transfer. 

Lack of Lubrication

During the system's operation, the components undergo normal wear and tear. This causes the lubrication on mechanical components, such as the compressor, to wear down. Consequently, the compressor parts will rub against each other, producing humming noises. This exerts undue stress on the compressor, and this causes it to fail. An AC repair professional can lubricate the compressor during routine check-ups to ensure seamless operation.

Electrical Failure

If you assemble the electrical wiring, you may fail to secure the connections. This can lead to a short circuit, causing the wires to fray and blowing fuses. Consequently, acid and oxidation will build up in the system, putting pressure on the compressor. Furthermore, a low-line voltage may cause the compressor to draw excess current, causing it to overheat and fail. Therefore, leaving your AC's electrical connections to an expert is the best way to prevent burnout.

Compressor failure can result in a system breakdown that may require a replacement. Thus, you should employ the services of an AC technician to inspect and clean your AC regularly for optimal performance.