A spray arm repeatedly falling off your dishwasher is primarily caused by a broken, cracked, or worn-out plastic retaining clip, mounting nut, or central locking tab. Constant exposure to hot water, harsh dishwasher detergents, and physical water pressure over several years makes plastic brittle and prone to snapping. Furthermore, if oversized dishes block the arm's rotation, the resulting friction can force the locking mechanism loose. Always turn off the dishwasher power breaker before inspecting internal components. You can verify that the issue is resolved by replacing the worn clip with a new OEM part and confirming it locks securely onto the water feed port.
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