After servicing, what method is commonly used to verify there are no leaks after charging?

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After charging, verification of leaks is done with a leak test that uses either an electronic leak detector or a soap bubble test at every joint and connection. This method directly shows whether refrigerant is escaping and where, which is essential for ensuring the system is airtight. Visual inspection alone can miss small or hidden leaks, so it’s not sufficient by itself. A pressure test might indicate a pressure loss but doesn’t pinpoint leaks or guarantee no leaks under operating conditions once charged. Releasing refrigerant and recharging wastes refrigerant and does not provide a reliable leak check. Use soap solution or a detector to inspect all joints and connections, repair any leaks found, then retest until no signs of leakage remain.