TROUBLESHOOTING
― ―
Error Code Problem
Low Voltage Protection
E1
High Voltage Protection
E2
Blocked Rotor
E3
Hardware Overcurrent
E4
Software Overcurrent
E5
Rotor disconnection
E6
Communication Error
E7
Machine Tilting
E8
Temperature-sensor probe
E9
malfunction
11 | English
Cause
•
Induced by voltage too low.
•
220V fan connected to 110V voltage.
•
Induced by voltage too high.
•
Poor connection between rotor terminal
block and electronic board.
•
Circuit driver, power component (MOSFET)
or other components damaged by outer
forces, Electronic board parameter error.
•
Short circuit of fan rotor or inner rotor.
•
Driver error or power component
(MOSFET) error.
•
Current sampling circuit error.
•
Poor connection between rotor and
terminal block.
•
Driving error of driver.
•
Poor communication between display
board and mother board, poor cable
connection.
•
Machine placed at an angle of ≥30
degrees against the surface.
•
Temperature-sensor probe poor
connection.