Refrigerant Circuit, Tracing Leaks with Electronic Leak Detector V.A.G 1796

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Minor leaks can be detected using an electronic leak detector or UV leak detector lamp for example.

NOTE:

Currents of air quickly disperse refrigerant gas. Draughts must therefore be avoided during leak detection.

Fig 1: Checking For A/C Refrigerant System Leaks

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If the refrigerant circuit is completely empty, charge with about 100 g of refrigerant.

Leak detection:

Start up leak detector in line with relevant operating instructions.

Always hold test probe beneath suspected leak.

Depending on the model, leak detection is indicated by an increase in clicking rate or a warning tone (refer to operating instructions for leak detector).