Midea KH19P - Error Code & Trouble Shooting; EC01: Vacuum Cleaner Cannot Work

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2.3 Error Code & Trouble Shooting
2.3.1 EC01: Vacuum Cleaner Cannot Work
The power source is abnormal.
The circuit connection is loosen
or short circuit.
N
Tight the connection or change
the wire.
Y
The On/Off button cannot work.
N
The PCB cannot work.
N
Change power source.
Y
Replace a new On/Off button.
Y
Replace a new PCB.
Y