Won't spin or agitate

When reassembling the drum belt, it must be located between the 2 red arrows (alignment marks) on the drum. Incorrect belt positioning will cause belt slipping, incorrect tumbler speed, and improper drying. This is a commonly missed step during drum reassembly.

When entering Smart Install mode on this model (Adjust Time Up + Temp for 7 seconds), the display shows 'SC' (not 'AS' as on some other Samsung models). This is a model-specific difference. The test procedure is the same: Step 1 checks the touch sensor (0 = open, 1 = short/wet), Step 2 checks motor and heater (OK or HC). This is faster than running a full cycle to verify installation.

Noise from the motor area can be caused by debris (lint, small objects) stuck on the blower fan wings, creating an imbalance. Remove any alien particles from the fan and check that the fan nut is properly tightened. This is a different problem from blower housing rubbing and does not require fan replacement if the fan itself is undamaged. Also check the idler bracket bending and bracket screw.

When reassembling the drum belt after repair, the belt must be located between the 2 red arrows marked on the drum. Incorrect belt positioning will cause the belt to slip, create noise, or fail to turn the drum properly.