Haier Unitary smart series Service Manual page 173

3) Outdoor DC motor abnormal
Outdoor indicator displays 00010.
Alarm condition:outdoor DC motor is blocked rotor or broken, abnormal.
This fault is only used when indoor unit is with DC fan motor.
outdoor indicator shows 00010
Check if the outdoor unit fan
blade is blocked by some objects
no
Check if the lead wire of DC motor
is broken or short-connected
no
Replace motor
Warning: For outdoor DC fan motor, forbidden to pull off the plug when
being electrified.
4) Communication error between indoor and outdoor units
Outdoor indicator shows 00011
For wall mounted unit:
LCD of wall mounted displays
E7
Check if communication wiring
between indoor and outdoor is
correct and if power wiring is
correct
yes
If communication wire is
damaged or broken off
no
Replace indoor PCB
yes
check if the failure
is eliminated
yes
adjust fan blade to
make it run normally
yes
adjust lead wire
of fan motor
no
adjust wiring
yes
re-wiring
no
Replace outdoor
PCB
a__
-173-
^ a` a`