PRO TECHNICIAN

Inspection/Test

Visual and Aural Check

Click on the underlined sentence.
1. Is the drive belt loose?
If the drive belt is too loose, it will slip; this will cause excessive wear.
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
7. Noise heard near blower
8. Checking refrigerant quantity through sight-glass

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