De Dietrich
Circulation Pump Obstruction or Failure
Loud grinding or buzzing noise from water area, especially during ice making
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Debris in circulation pump impeller, Worn pump bearings, Air trapped in pump, Scale buildup in pump housing
How to Fix / Troubleshooting
Safety first: Unplug the ice maker before accessing the pump. Water may spill when hoses are removed.
Fix steps:
- Access pump: Remove the lower front or internal base panel to reach the circulation pump.
- Inspect impeller: Disconnect the inlet and outlet hoses, then open the pump housing. Remove any debris (plastic, scale, food particles) from the impeller.
- Check bearings: Spin the impeller by hand. If it feels rough or wobbly, replace the pump.
- Bleed air: After reassembly, fill the reservoir and tilt the unit slightly if needed to help purge air from the pump.
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Repair Difficulty
Medium
3/5
Required Part
Circulation Pump
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