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    Ask the Expert: What are the annual maintenance requirements for an A/C machine?

    March 16, 2015
    Aside from the filter, other maintenance items include an annual calibration and that the vacuum pump oil is changed at regular intervals.
    Eric Shultz, engineering manager, MAHLE Service Solutions
    Eric Shultz, engineering manager, MAHLE Service Solutions

    Q: What are the annual maintenance requirements for an A/C machine?

    A: SAE certified machines require the desiccant filter to be changed after recycling 150 lbs of refrigerant. It is recommended to change in-line filters at this time as well. Aside from the filter, other maintenance items include an annual calibration and that the vacuum pump oil is changed at regular intervals. The service hoses and couplers should also be inspected regularly for wear, and for vacuum leaks not visible to the naked eye.

    Information provided by: MAHLE Service Solutions

    About the Author

    Eric Shultz | Engineering Manager, MAHLE Service Solutions

    Eric Shultz serves as the engineering manager for MAHLE Service Solutions and is based at the company’s location in York, Pennsylvania.

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