Installing a Compressor
Author: Nationwide Autoparts Date Posted:27 September 2017
How do I diagnose a faulty compressor?
The most obvious sign of a faulty compressor will be that the air from the air conditioning system will be blowing hot rather than cold. You will also need to inspect the compressors belts and wiring (with the car off) as well as the clutch hub to ensure the clutch hub engages (with the engine on).
Do I have to be a licensed technician to purchase and fit a compressor?
You do not need to be a licensed technician to purchase or fit a compressor however any work that requires degassing or regassing of an auto air conditioning system must be conducted by an authorised operator. Do not attempt to degas or regas a car air conditioning system yourself. Our Compressor Installation Guide may be able to assist you with your installation.
How do I select which compressor matches my vehicle?
To select which compressor matches your vehicle, simply search for your vehicles make and model using our user friendly searching navigation on our homepage. www.nationwideautoparts.com.au If you have any further questions you can contact our customer service team on 1300 529 723.
What other parts need to be replaced when I replace my compressor?
When replacing your compressor, you will also need to replace the air conditioning receiver dryer, the valves, O-rings and compressor.
Does the air conditioning system need to be flushed when I replace my compressor?
Yes your air conditioning system must be flushed after you have installed your new compressor. This must be completed by a licensed technician.
Compressor Installation Guide
The following is a general guide to the removal and installation of a compressor.
WARNING: ANY WORK THAT REQUIRES DEGASSING OR REGASSING OF AN AUTO AIR CONDITIONING SYSTEM MUST BE CONDUCTED BY AN AUTHORISED OPERATOR. DO NOT ATTEMPT TO DEGAS OR REGAS A CAR AIR CONDITIONING SYSTEM YOURSELF.
Do not commence the below process until all gas has been removed from your car's air conditioning system by an authorised operator.
1. Disconnect the high pressure and low pressure hoses at the compressor. Move the hoses out of the way so you can access the compressor bolts.
2. Loosen off the compressor belt tensioner so that the belt can be removed. Take care to note how the belt runs so it can be refitted the same way.
3. Undo the mount bolts that connect the compressor to the engine (or the mount system). Remove the compressor from the engine bay.
4. Place the new and existing compressors side by side and check that you have the correct part. Swap over any brackets or wiring from the existing to the new.
5. THIS STEP IS VERY IMPORTANT. You must know whether the compressor has enough oil. Almost all new compressors come complete with the correct charge of oil but make sure you check the instructions. If you are still not sure tip the compressor on its side and see whether any oil starts to come out. If nothing comes out then you need to add the correct charge of oil.
6. To install your new compressor, follow the instructions above but in reverse order. Fit the compressor, fit and tighten the belt and reconnect the hoses with NEW orings. Once this is done the car is ready to regas.
7. Regassing should only be undertaken by an authorised and licensed operator. They will know the correct procedure and the correct quantity of gas to use.
8. We recommend both the filter dryer be changed and that UV dye is used when regassing. Depending on the reason for the compressor failure you may need to change the TX valve as well. Any licensed air conditioning service center can advise you further.