If you replaced the snapped belt on a dryer and it is now barely spinning and stops when there are more than a few clothes inside, there could be a few potential causes for this issue:
Belt Misalignment: The most common issue after replacing a dryer belt is incorrect installation or misalignment. If the belt is not properly aligned on the pulleys or drum, it may not have enough tension to turn the drum effectively. Double-check the installation of the belt to ensure it is correctly aligned and tightened.
Worn Drum Rollers or Bearings: Over time, the drum rollers and bearings in the dryer can wear out, leading to reduced spinning efficiency and difficulty in handling heavier loads. When you replaced the belt, it might have exposed the wear on these components. Inspect the drum rollers and bearings for signs of damage or excessive wear and replace them if necessary.
Idler Pulley Issues: The idler pulley is responsible for maintaining tension on the belt. If it's damaged, worn, or misaligned, it can lead to poor drum rotation. Check the idler pulley for any signs of problems and replace it if needed.
Motor Problems: The motor itself could be experiencing issues, such as worn-out bearings or faulty windings. This could result in a lack of power to effectively turn the drum, especially when under heavier loads.
Overloaded Dryer: It's essential to adhere to the dryer's load capacity. If you overload the dryer, it can strain the motor and other components, causing it to stop or spin weakly.
Belt Tensioner Problems: Some dryers have a belt tensioner that keeps the belt tight. If this component is malfunctioning, the belt may not have the necessary tension to turn the drum efficiently.
Drive Motor Belt: In some dryers, there's a drive motor belt that connects the motor to the drum. If this belt is loose or damaged, it can lead to spinning issues.
To troubleshoot the problem and identify the exact cause, it's best to unplug the dryer and carefully inspect all the components mentioned above. Look for any visible signs of damage or wear. If you are not comfortable doing this yourself, consider seeking the help of a professional appliance repair technician who can diagnose and fix the issue for you.