Fix Your Dishwasher's Non-Rotating Spray Arm
When your dishwasher's spray arms stop rotating, dishes don't get properly cleaned. This is one of the most common dishwasher issues and often has a simple solution.
Why Spray Arms Stop Rotating
- Mineral deposits: Hard water buildup clogs the spray holes
- Food debris: Particles block water flow and bearing movement
- Bearing wear: The center post bearing becomes damaged or corroded
- Broken coupling: The connection between water pump and spray arm fails
- Water pump failure: Insufficient pressure prevents arm rotation
Cleaning the Spray Arm
Often, cleaning the spray arm resolves the issue:
- Remove the spray arm by twisting or unclipping it (check your model's manual)
- Hold the spray arm up to a bright light and look through each hole
- Use a toothpick or paperclip to carefully clear any debris from each hole
- Soak the spray arm in white vinegar for 30 minutes to dissolve mineral deposits
- Rinse thoroughly and reinstall the spray arm
When Professional Service is Needed
If cleaning doesn't help, you may need professional service to replace the bearing assembly, water pump, or control valve. Contact Nika Appliance Repair for a diagnosis.