Why is there E9 error code on the display of the Mijia Brushless Cordless Drill 2?
The E9 error code is a protective fault indicator and could be related to an anomaly in the drill's control system. It could indicate an internal circuit malfunction, motor malfunction, or safety protection trigger during the device's startup or operation. The E9 error code appears on the display at startup. This could be due to the low-temperature protection function being triggered after long-term storage in a low-temperature environment. Allow the drill to cool to room temperature before using it.
Does it help?
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