E6
Roborock
Control PCB / Trigger Switch Fault
Vacuum shows E6; trigger is unresponsive or unit powers off randomly during use.
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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
Worn trigger microswitch, Loose internal wiring harness, Faulty main control PCB, Contaminated trigger contacts from dust or moisture
How to Fix / Troubleshooting
Safety first: Remove the battery before opening the handle or body. Avoid static discharge to the PCB.
- External check: Confirm the trigger moves freely and returns by spring action. If it feels sticky, blow compressed air around the trigger area and wipe with a dry cloth.
- Battery fit: Ensure the battery clicks firmly into place. A loose battery can mimic power loss.
- Open handle housing: Remove screws from the handle/body to access the trigger switch and wiring (follow a model-specific guide).
- Inspect wiring: Check for loose connectors between the trigger switch, battery terminals, and main PCB. Reseat any loose plugs.
- Test switch: Using a multimeter (if you are qualified), test continuity of the trigger microswitch. Replace the Trigger Switch Assembly if it fails.
- Replace PCB if needed: If wiring and switch are good but E6 persists, replace the Main Control PCB.
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Repair Difficulty
Hard
4/5
Required Part
Trigger Switch Assembly / Main Control PCB
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