SC Air Conditioning Practice Questions - South Carolina Air Conditioning Contractor Examination Exam

A high-pressure switch on a comfort-cooling condensing unit most commonly opens because of:

A dirty or blocked condenser, failed condenser fan, or severe overcharge A wide-open TXV that is flooding the compressor Low indoor airflow only A broken crankcase heater

Correct Answer:

A dirty or blocked condenser, failed condenser fan, or severe overcharge

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