E9
Hoover
Accessory Recognition / Communication Error
Cordless vacuum with display shows E9 and shuts down when switching between modes or accessories
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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
Dirty or bent accessory detection pins, Faulty accessory (e.g., motorised mini turbo brush), Damaged wiring in wand, Faulty main PCB accessory detection circuit
How to Fix / Troubleshooting
Safety first: Remove the battery before inspecting electrical connectors.
Steps:
- Clean contacts: On the handheld unit, wand, and powered accessories, clean the metal contacts with a dry cloth. Remove any dust or oxidation.
- Inspect pins: Look for bent or recessed pins in the connectors. Carefully straighten slightly bent pins with small pliers.
- Test accessories individually: Connect each powered accessory (e.g., motorised pet tool) directly to the handheld unit, bypassing the wand, to see if E9 appears with a specific tool.
- Check wand continuity (if accessible): If the wand has visible wiring, inspect for cuts or crush damage.
If E9 only occurs with one accessory: Replace that accessory. If it occurs with all, the wand or main PCB may be faulty and require professional service.
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Repair Difficulty
Medium
3/5
Required Part
Hoover Wand Wiring Harness
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