Reattaching a fallen top spray arm is a simple process. First, pull out the upper dish rack to gain clear access to the rear water supply housing or mounting clip. Inspect the center hub of the spray arm and the plastic retaining nut or snap-in clip for any cracks or mineral deposits. Clean away any white scale buildup with vinegar if necessary. Align the spray arm securely with the water inlet port, and push it firmly upward until it clicks or locks into position. Rotate the arm by hand to verify smooth, unobstructed 360-degree rotation.
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