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Gauges

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To service an A/C system properly, it’s best to use a quality set of gauges to allow you to monitor low- and high-pressure conditions. This can help you determine if the system has the right amount of refrigerant, if there is moisture in the system, and if the compressor and expansion valve are maintaining proper pressures for optimal cooling performance. Filling the system blindly can lead to over-charging and compressor damage.

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