Kenmore Wheel Unit - Canister Vacuum SF-AA30 or behaves erratically for no

or behaves erratically for no obvious reason

A cracked or missing cover disrupts that airflow and can let stray debris reach the fan blades

Function: 3-prong pipe linking the hose to the canister

tired filter media is often the cause

Benefit: stronger suction and cleaner discharged air

Kenmore Wheel Unit - Canister Vacuum SF-AA30 or behaves erratically for noThis genuine OEM overmolded wheel unit for Kenmore canister vacuums fits models 21814 and 81714, keeping the machine rolling smoothly across hard floors and carpet. The overmolded tread cushions the roll and grips without marking hard surfaces. Wheels and casters wear over time, especially on hard floors, and a worn wheel causes the vacuum to drag, scratch floors, or tip over. When the machine no longer rolls smoothly, pulls to one side, or a wheel is