Robot displays F18 and may not start due to a reported internal fan or cooling issue.

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.

Possible Causes

Cooling fan blocked by dust, Fan blades jammed, Failed fan motor, Fan connector loose

Safety first: Turn the robot OFF and disconnect from the dock. Do not insert tools into fan openings while powered.

Inspect vents: Look for a small fan vent on the side or rear of the robot. Check for dust buildup and gently vacuum the area.
Listen for fan: When turning the robot on, listen for a small fan spin‑up sound. If silent and F18 appears, the fan may have failed.

Accessing and replacing the internal electronics cooling fan generally requires disassembly of the main body and should be done by a technician.

Professional Required 5/5

Electronics cooling fan

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