Stihl RMI 422 P - Troubleshooting Guide; Troubleshooting Mower Performance Issues

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English 21 Troubleshooting Guide
4006 – Internal fault See message 4004. ► See message 4004.
4008 – Internal fault See message 4004. ► See message 4004.
4027 – STOP button
pressed
Press OK to release
STOP button has been pressed. ► Confirm message by pressing the OK button.
Message Possible Cause Remedy