ESCO Air Conditioning Practice Exam

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Prepare for the ESCO Air Conditioning Practice Exam. Study using flashcards and multiple-choice questions with detailed hints and explanations. Get ready to ace your exam!

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If a residential split system with a replaced compressor is not cooling properly and the evaporator seems starved for refrigerant with a sweating liquid line leaving the dryer, what is the most likely cause?

Air in the system
Debris from the burned out compressor has clogged the dryer
Incorrect refrigerant charge
A faulty expansion valve

The correct answer is: Debris from the burned out compressor has clogged the dryer

The most likely cause of the issue described in the question is debris from the burned-out compressor clogging the dryer. When a compressor fails, it can send debris throughout the refrigeration system, which can accumulate and block the components, such as the dryer. This blockage can restrict the flow of refrigerant, causing the evaporator to appear starved and the liquid line leaving the dryer to sweat. This situation indicates a clog in the system rather than air in the system, an incorrect refrigerant charge, or a faulty expansion valve.