ASE S7 Air Conditioning Systems & Controls (School Bus) Practice Questions - ASE S7 - Air Conditioning Systems & Controls (School Bus) Certification Exam

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A manifold gauge set connected to a school bus A/C system reads high on the low side and low on the high side with the compressor running. The most likely cause is:

Air in the system Overcharged system Internal compressor problem (failed reed valves or worn pump) Restricted orifice tube

Correct Answer:

Internal compressor problem (failed reed valves or worn pump)

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