Robot vacuum does not charge even though it is correctly docked; dock LED is on.

Safety first: Unplug the dock before cleaning contacts.

• Clean contacts: Use a dry cloth or pencil eraser to clean the metal contacts on both robot and dock.
• Check adapter: Verify the adapter output matches the Coredy specification and is not damaged. Replace if the cable or plug is frayed.
• Test direct contact: Manually press the robot against the dock to ensure firm contact and watch for charging indicators.