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The technician's first step in a/c system service should be to:

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The technician's first step in a/c system service should be to: "perform visual inspection".

Visual inspection refers to a straightforward and less mechanically progressed contrasted with different techniques. In spite of this, despite everything it has a few favorable circumstances over more innovative strategies. Contrasted with different techniques, it is much more cost effective. This is due to that there is no gear that is required to perform it.
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