Technician A says the presence of oil around a fitting of an air-conditioning line may indicate an oil leak but not a refrigerant leak. Technician B says using an electronic leak detector is the best way to find the source of a refrigerant leak. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because using an electronic leak detector is indeed one of the most effective methods for identifying refrigerant leaks in an air-conditioning system. Technician A is incorrect because the presence of oil around a fitting often indicates a refrigerant leak, as refrigerant carries oil throughout the system, and where there's a leak, oil can accumulate.

Technician a Says the Presence of Oil Around a Fitting