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Air conditioning systems can
lose refrigerant over time due to the refrigerant seeping through the
physical joints of the systems components. This will eventually result
in a deterioration in the systems performance.
If you allow the refrigerant
level to become low, this can result in a deterioration of the lubricant
circulation which may allow moisture to enter the system. Allowing this
to happen could contribute to the following defects:
- Lower fuel economy.
If the refrigerant level is low then the compressor will need to
operate longer in order for the lower temperature to achieved
- Internal corrosion
of the system components. This can be caused by air or moisture
reacting with the refrigerant
- Component or system
failure
Below are the procedures
carried out during an Air Conditioning Service. |
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Inside Vehicle - Check
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Switches temperature control |
Check function and
illumination |
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A/C switches |
Check function and
illumination |
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Switch recirculated air
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Check function and
illumination |
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Air vent |
Check function |
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Air flow at registers (A/C
on) |
Check cooling |
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Evaporator |
Check for smell |
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System temperature |
Check |
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Under Hood - Check
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A/C pipes, hoses and lines |
Check for damage and leaks
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Cooling fan (A/C and engine
on) |
Check function |
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A/C piston compressor |
Check cycling and noise
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Auxiliary drive belt |
Check wear and condition
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Service Procedure
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Air conditioning service station
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Connect, extract gas,
evacuate and refill |
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Leak detector |
Add if required |
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System pressure |
Check |
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