What must the technician do before checking an air conditioning system for refrigerant leaks using a black light?

Name: What must the technician do before checking an air conditioning system for refrigerant leaks using a black light?
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Question

Quizplus · Accepted Answer

Before checking an air conditioning system for refrigerant leaks using a black light, the technician must install dye in the system. The dye circulates with the refrigerant and leaks out at any leak points, making them visible under a black light.

What Must the Technician Do Before Checking an Air Conditioning