Midea
V8
Series VRF Indoor Units
6.1.56 J6E - Phase lack protection of motor
Spot check interface
query
Error code is not
displayed
The faulty IDU stops. Other IDUs of the same system: operate normally.
ODU of the same system: operate normally.
When the motor phase lacks protection
The motor plug connecting to the U/V/W port in the IDU main control board is loose.
The fan drive board is damaged.
The IDU main control board is damaged.
J6E
Cause 1: The motor plug connecting
to the U/V/W port in the IDU main
control board is loose
Reconnect the loose
plug
Cause 2: The fan drive board is
damaged
Replace the fan drive
board (1)
Cause 3: If the error cannot be
cleared after causes 1/2/3 have
been eliminated, the main control
board of IDU is damaged
Replace the main
control board of the
IDU
Note 1: Please observe the following rule when replacing the fan drive board: For units whose fan
drive board is welded onto the main control board, if either the fan drive board or main control
board becomes faulty, the whole control board has to be replaced.