How to fix error 06

Canon EOS 5D Mark II

Error 06indicates a malfunction with the Self-Cleaning Sensor Unit, meaning the automatic sensor cleaning process failed, often due to a stuck sensor or mechanical issue with the cleaning mechanism. Basic troubleshooting involves turning the camera off and on, removing/reinserting the battery, and sometimes gently tapping the camera, but if the error persists, it likely needs servicing by a professional Canon repair center.

Troubleshooting Steps (Try in Order):

1. Power Cycle: Turn the camera's power switch to OFF, wait a few seconds, then turn it back ON.
2. Battery Reset: Turn the camera off, remove the battery and memory card, wait a minute, then reinsert them and power on.
3. Gently Tap: With the camera off, try gently tapping the camera body (not too hard) to potentially dislodge the sensor unit.
4. Disable Automatic Cleaning: If the camera turns on, try disabling the automatic sensor cleaning in the menu to prevent it from triggering the error.
5. Check Lens Contacts: While less common for Error 06, ensure lens and camera contacts are clean, as communication issues can sometimes cause general errors.

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This video demonstrates the basic troubleshooting steps for a Canon DSLR camera: