PRO TECHNICIAN
Inspection/Test
Visual and Aural Check
Click on the underlined sentence.
1.
Is the drive belt loose?
2.
Insufficient air flow
3.
Noise heard near compressor
4.
Noise heard inside compressor
5.
Condenser fins covered with dirt and dust
6.
Oil stains on A/C system connections or joints
Any oil stain on a connection or joint could indicates that refrigerant is leaking in that area. If an oil stain is found, confirm using a gas leak tester and repair as required.
7.
Noise heard near blower
8.
Checking refrigerant quantity through sight-glass
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