Operation CHARM: Car repair manuals for everyone.

General Information

CAUTION: Do not operate the detector in a combustible atmosphere since its sensor operates at high temperature. Personal injury or damage to the equipment may result

IMPORTANT: Vehicles equipped with an early warning system for low refrigerant may set low refrigerant codes.

Perform a refrigerant leak test on the system whenever a leak is suspected, when a system indication of a low charge occurs, or after any service operation which disturbs the following parts:
^ Components
^ Lines
^ Connections

Liquid/bubbles leak detectors have very limited usefulness. This is due to the restricted visibility in today's refrigerant systems and liquid/bubbles leak detectors' lack of sensitivity.