Midea Mini VRF Service Manual

R410A All DC Inverter Mini VRF MCAC-VTSM-2016-02
68 Troubleshooting
4.6 E6:DC Fan Error
The error may be caused by two reasons:
1). The wiring connection is wrong; 2). Power supply voltage is not normal.
LED displays E6
Outdoor unit DC fan cannot work.
Refers to the wiring nameplate to check
whether the DC fan wiring correct or not.
NO
Connect again.
YES
O
Check whether PN voltage of the DC fan
transfer board is from 255V to 367V.
是
YES
DC fan motor power supply is normal, Check the
Voltage between DC fan motor’s white terminal
and black terminal is 15V at stand by state
YES
Replace main control
board
Replace the fan motor
NO
Whether the outdoor fan will work after the indoor fan
operates for 3 minutes.
NO
Insure the input power
supply is 380-415V,
3N, 50Hz.
Adjust to the right
range. Then
check whether
the system is
running normally.
NO
NO

Midea Mini VRF Specifications

General

Brand	Midea
Model	Mini VRF
Category	Air Conditioner
Language	English