PRO TECHNICIAN
Inspection/Test
Visual and Aural Check
Click on the underlined sentence.
1.
Is the drive belt loose?
2.
Insufficient air flow
Check the clean air filter for contamination.
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
7.
Noise heard near blower
8.
Checking refrigerant quantity through sight-glass
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