Some noise during dishwasher operation is normal, but loud or unusual sounds often indicate a problem. Grinding, rattling, or squealing noises should be investigated to prevent further damage.
Common Dishwasher Noises
Unusual noises may include:
- Grinding or buzzing
- Banging or rattling
- High-pitched squealing
- Clicking during cycles
Each noise points to a different issue.
Food Debris in the Pump
Small objects such as glass shards or food debris can become lodged in the pump or filter area, causing grinding noises.
Cleaning the filter and checking the pump area may resolve the issue.
Loose Spray Arms
If spray arms are loose or hitting dishes, they may produce rattling sounds. Ensure spray arms spin freely and dishes are loaded properly.
Worn Bearings or Motor Issues
A failing motor or worn bearings often cause loud humming or squealing noises. These issues typically require professional repair.
When to Call a Technician
Persistent or worsening noise usually indicates internal mechanical wear that should be handled by a professional to prevent complete failure.
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