What are the 5 most common parts that fail in gas dryers?

The 5 most common parts that fail in gas dryers are: 1. Thermal fuse and high-limit thermostat - This safety device blows when airflow is restricted by a clogged vent, causing the dryer to tumble but not heat. It is the number one failure and costs 10 to 30 dollars for the part. It fails to protect against overheating and fire. 2. Igniter - The silicon carbide or nitride igniter glows orange hot to ignite gas. It is fragile and typically fails after 5 to 8 years from thermal cycling, resulting in no heat and no glow. Cost is 30 to 80 dollars. 3. Gas valve solenoid coils - These are two or three small black coils on top of the gas valve that open to release gas. When weak, they open initially then close prematurely after a few minutes, causing intermittent heat or clothes taking 2 to 3 cycles to dry. Cost is 20 to 50 dollars for a set. 4. Flame sensor - This sensor detects the igniter is hot enough to safely open gas. If faulty, it prevents gas valve opening, leading to no heat. Cost is 20 to 40 dollars. 5. Drum belt, idler pulley, and drum rollers - These mechanical wear items cause squealing, thumping, or drum not turning after 5 to 8 years of heavy use. A belt costs 15 to 30 dollars, roller set 30 to 60 dollars. Regular vent cleaning prevents most failures.