EAS ELECTRIC EMCH Serie Manual De Instalación Y Manual De Usuario página 175

18.5.5 E6
E6: Malfunction of outdoor unit DC fan motor
Refers to the wiring diagram to check
whether the DC fan motor wiring is correct
Check voltage of the DC fan
motor, the normal voltage
between red and black
terminal should be 277~ 354V
when standby
YES
Normal voltage between DC fan motor's white
terminal and black terminal should be 15V
when standby
The outdoor DC fan starts after the
indoor fan operates for 3 minutes
PCB is damaged
Replace PCB
The contents in
80
YES
Check voltage of PFC
NO
module "+" and "-",
the normal voltage
should be 277~ 354V
YES
Yes
No
Yes
Yes
are just for single phase units.
Fan motor terminal
NO
Connect again
NO
No
Replace IPM module
Voltage between DC
fan motor's black and
black terminal is lower
than 2.4V
Replace
PFC module
No
Replace DC
fan motor
V.2