Troubleshooting Guide
Dishwasher Making Grinding Noise
Grinding or crunching sounds during dishwasher operation
dishwasher
Your dishwasher is producing grinding, crunching, or unusual mechanical sounds during the wash cycle.
Quick Fixes to Try First
- 1Check and clean the filter and drain area
- 2Inspect spray arms for debris or damage
- 3Ensure dishes are loaded properly, not blocking spray arms
- 4Run an empty cycle with dishwasher cleaner
Most Common Causes
Debris in Pump
DIY Possible
Glass shards, bones, or other hard objects in the pump create grinding sounds.
Spray Arm Obstruction
DIY Possible
Items interfering with spray arm rotation can cause grinding as they hit dishes or racks.
Other Possible Causes
Worn Pump Bearings
Aging pump motor bearings create grinding or growling sounds.
Chopper Blade Issues
The food chopper in the sump area may be hitting debris or wearing out.
When to Call a Professional
Contact our technicians if any of these apply:
- Grinding continues after cleaning the filter
- The sound is getting progressively louder
- Dishes aren't getting clean
- You see debris in the bottom after cycles
Brands We Service for This Issue
Related Problems
Still Need Help?
Our factory-trained technicians are ready to diagnose and repair your appliance.