If an old-style gas dryer starts making weird noises during drying cycles, there could be several possible reasons behind the issue. Some of the common causes include:
Worn or faulty drum rollers: The drum rollers support the drum and allow it to rotate smoothly. Over time, these rollers can become worn or damaged, leading to strange noises as the drum spins.
Damaged drum glides or seals: The drum glides and seals help the drum move smoothly without creating friction. If they wear out or become damaged, you may hear scraping or squealing noises.
Loose or worn belts: The dryer's drum is usually rotated by a belt connected to a motor. If the belt becomes loose or worn, it can produce a thumping or rattling sound as it operates.
Malfunctioning motor: The dryer motor itself could be faulty, causing unusual sounds during operation.
Faulty blower wheel: The blower wheel is responsible for circulating hot air through the dryer. If it becomes loose or damaged, it can generate loud rattling or vibrating noises.
Loose components: Over time, various parts of the dryer can become loose due to constant vibration, leading to odd noises during drying cycles.
Clogged or blocked vents: A buildup of lint or debris in the vents can restrict airflow, causing the dryer to work harder, which may result in strange noises.
Foreign objects in the drum: Sometimes, small items like coins, buttons, or screws may get stuck in the drum's fins, producing rattling or clunking noises.
Gas valve issues: If the gas valve is malfunctioning, it may create irregular noises during the drying process.
In any case, it's essential to address the problem promptly to avoid further damage to the appliance. If you're not familiar with dryer repair, it's best to seek assistance from a qualified technician to diagnose and fix the issue safely. Regular maintenance and cleaning can also help prevent some of these problems from occurring.