E17
Electrolux
Main PCB Communication Bus Error
Robot vacuum displays E17; internal communication error between modules.
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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
Loose internal wiring harness, Corroded connector pins, Faulty daughterboard (e.g., sensor board), Main PCB firmware corruption
How to Fix / Troubleshooting
Safety first: Disconnect the robot from the dock and turn it OFF before opening the housing.
- 1. Power cycle: Turn the robot off for at least 1 minute, then power it back on. Sometimes transient bus errors clear after a full reset.
- 2. Check for firmware updates: Use the Electrolux app to see if a firmware update is available. Apply updates with the robot on the dock and stable Wi‑Fi.
- 3. Internal connector check (advanced): Remove the top or bottom cover to access the main PCB. Carefully unplug and replug all ribbon cables and harness connectors (sensors, motors, Wi‑Fi, etc.).
- 4. Inspect for corrosion or damage: Look for signs of liquid damage, corrosion, or burnt components on the main board and connectors.
- 5. Module isolation: If possible, disconnect non-essential modules one at a time (e.g., camera, LIDAR) to see if E17 changes, helping identify the faulty board.
- 6. Replace defective board: If E17 persists, the main control board or a specific daughterboard may need replacement. Use the correct Electrolux replacement PCB for your model.
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Repair Difficulty
Professional Required
5/5
Required Part
Electrolux Main Control Board
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