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If any error codes appear on the screen, then please check below:
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Err: Without safety key - Please make sure the safety key is put on.
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If the safety key is already on, but there ERR still shows or there is no function, then change
the computer screen/display monitor.
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E2: Error for the motherboard, please change it.
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E4: Error for the motherboard, please change it.
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E5: Over current protection, please change motherboard.
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E6: Motor Error-Please make sure the motor line has connected, if all the line connected,
please change the motherboard if necessary.
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E7: Communication interruption, please make sure all of the connection lines have been
connected correctly.
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E8: Over load error- User may have exceeded max weight.