Electronic Leak Detection

The procedure for using an electronic leak detector is similar to the procedure for flame-type leak detectors, except that the presence of refrigerant is indicated by an audible tone or flashing light. An R-12 electronic leak detector is not compatible with R-134a systems; a special detector is required. Refer to operating instructions for unit being used, and observe the following procedures:
- Move detector probe one inch per second along areas of suspected leakage.
- Position probe under area to be tested as refrigerant is heavier than air.
- Check gauge manifold, hoses and service ports for leakage.