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
If the condenser fins are covered with dirt and dust, the condenser's cooling efficiency will be greatly reduced. Hose off all dirt and dust from the condenser with water .
6.
Oil stains on A/C system connections or joints
7.
Noise heard near blower
8.
Checking refrigerant quantity through sight-glass
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