Won't spin or agitate

After installing the dryer, use Smart Install mode to quickly verify everything works: Press Adjust Time Up + Temp for 7 seconds. It tests the moisture sensor (touch sensor) and the motor/heater in two quick steps. If both pass, display shows 'OK'. If motor or heater fails, display shows 'HE'. This is much faster than running a full drying cycle to verify installation and catches heating/motor issues immediately.

When reassembling the belt after drum removal or belt replacement, the manual specifically warns: 'When reassemble the belt, make it located middle of the Drum.' A belt that is off-center will wear unevenly, create noise, and may eventually slip off the drum entirely. Take the time to verify belt alignment before completing reassembly.

Several sounds are completely normal during dryer operation: gas valve clicking on and off, heating element cycling on and off, humming from high velocity air moving through the drum/fan/exhaust system. Educate the customer that these are expected behaviors. Abnormal sounds to investigate include: whistling (door seal), thumping (drum rollers or cracked drum weld), squealing (idler bracket or belt), and rattling (debris on fan wings or loose fan nut).