E7
Thor Kitchen
Circulation Pump Failure
Dishwasher shows E7 and may not circulate water; spray arms do not spin and dishes remain dirty.
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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
Failed wash circulation pump motor, Jammed impeller from debris, Loose or burned pump wiring, Seized pump bearings
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker and shut off water. Water inside may be hot.
Step-by-step checks:
- Listen for pump operation: Start a cycle and listen. If you hear only filling and then silence or humming without water spraying, the circulation pump may be stuck or failed.
- Check for obstructions: Remove lower spray arm and filters. Inspect the sump for broken glass, bones, or other debris that could jam the impeller.
- Access pump: Tilt or pull the dishwasher out and access the bottom. Locate the circulation pump assembly and check for leaks or burn marks.
- Wiring inspection: Ensure the pump connector is fully seated and wiring is intact.
- Advanced: With power disconnected, a technician can test pump resistance and spin the impeller by hand. If stiff or open-circuit, replace the pump.
Warning: The pump area may contain sharp debris; wear cut-resistant gloves.
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Repair Difficulty
Hard
4/5
Required Part
Circulation Pump Assembly
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