Car ac compressor

Air conditioner compressor is a so called “heart" of each air conditioner. Cooling is possible due to the coolant compression. Compression is a concentration. It is necessary for coolant depression. After depression there is cold’s delivery in the air conditioner. This process starts every time when you switch on the conditioner and lasts till cold air will be supplied to the saloon. Moreover, air conditioner compressor energizes a lot that is why its usage is uneconomic.

Compressor operates from electric motor or directly from automobile engine. There are different kinds of compressors: swash plate compressor, rotary compressor, piston compressor. Conditioner may break down for a number of reasons. One of the cause is torn V-belt. It is easy to check if you will examine the conditioner. If the air condition breaks down, it is necessary completely to substitute it. In many cases air conditioner substitution is expensive. To repair the broken compressor is possible only in rare cases.

Still, it will be cheaper to replace air conditioner compressor then to replace the conditioner. But you must do this in the repair shop. Car owner without professional experience won’t manage to replace it by himself. You will save if you won’t buy spare part in the service centre. In our on-line store you will find air conditioner compressors for many car makes at remunerative prices. In addition, in our Internet shop there are brake pads, horns, stub axles, spark plugs, mudguard fenders, V-belts, fuel filters and many other car parts.

Air conditioner compressor failures

• drive belt is damaged or worn out;
• coolant leakage;
• component clutch is broken down;
• solenoids are worn out or melted on the surface;
• the body was damaged as a result of mechanical impact;
• part valves jammed;
• wiring is short-circuited or damaged.

Signs of air conditioner compressor failures

• the conditioner produces non-relevant noise when switching on and operating;
• supplied air temperature can’t be regulated;
• foreign odor in the compartment.

Causes of air conditioner compressor failures

• scheduled maintenance are done untimely;
• components of air conditioning system are operated improperly;
• components of poor quality are used;
• circuit is depressurized;
• the part is operated under conditions of high moisture and changes of temperature;
• coolant of poor quality is used;
• lack or exceed of coolant in the system;
• there is lack or no grease in the compressor;
• the conditioner pipeline is damaged;
• engine fan is broken down.

Diagnostics

Diagnostics of the spare part condition is performed at the special stand or on the car. Measure component working pressure. The optimum entrance pressure of the coolant (freon)  is to be 2–3 atmospheres. Gas compresses up to 15-25 the atmospheres. At a low degree of compression the cooling will be very slight.

After that check oil of the component. If there are impurity, oxides or water in the oil, the system became depressurized. Besides, if the oil darkened, or has the smell of burning, the compressor overheats during working. We must note that if the mechanism overheats throughout long time, oil resolves at the chemical level and the compressor fails completely.

If pressure changes, indications of manometers have to be smooth and grow smoothly. Sharp fluctuations of the compression can damage the drive or the compressor can get littered.

Repair and replacement of the compressor parts

If the compressor was damaged insignificantly, the qualified specialist will be able to repair it. When the component is tested, and its breakages are defined, the compressor has to be disassembled and cleaned completely.

Damage assessment will help to reveal minor defects. After their elimination check at the stand, whether the compressor works correctly. If more than a half of the compressor elements are faulty, or the electromagnetic clutch is broken, the part should be replaced.