Why won't my washer agitate but spins and drains?

A washing machine that successfully drains wastewater and executes high-speed spin cycles, but completely refuses to agitate during the wash phase, usually suffers from a drive train disconnection, a broken agitator mechanism, or a faulty control board relay. If the machine spins and drains, you can confirm that the motor, drain pump, and belt are partially functional; however, agitation requires a specific transmission clutch engagement or directional motor reversal. In many top-load washers, the plastic agitator drive dogs inside the upper agitator have worn down, allowing the top cap to spin freely while the lower blades remain motionless. In other cases, a faulty transmission shifter fork or a broken motor coupling prevents the agitator gears from engaging while allowing the outer drum to spin via centrifugal force.

If your washing machine pumps out water and spins at high speed during extraction, but remains completely still during the wash cycle when it should be agitating, it usually indicates a stripped agitator coupling, a broken transmission gear, or a faulty drive belt. In top-load agitator washers, the plastic coupling connecting the transmission to the agitator often shears off under heavy loads. To fix this, remove the top agitator cap, inspect the internal drive spline coupling, and replace any stripped plastic components to restore agitation.