Midea MSG-09CR-QC3

Service manual
- 38 -
12.2 Troubleshooting
For cooling mode:
Failure phenomenon
Operation
lam
p
Timer
lam
p
Indoor fan speed has been out of control for over 1 minute
☆
X
Indoor room temp. or evaporator sensor is open circuit or short circuit
☆
On
Over current protection of the compressor occurs 4 times X
☆
EEROM error On
☆
No over-zero si
g
nal
☆
☆
r
Extinguish
☆
Flash at 5Hz
For heat pump mode:
Failure phenomenon
Operation
lam
p
Timer
lam
p
Defrostin
g
lam
p
Over current protection of the compressor occurs 4 times
☆
X
☆
Indoor fan speed has been out of control for over 1 minute X
☆
☆
No over-zero si
g
nal
☆
☆
☆
Temp. sensor on indoor evaporator is open circuit or short circuit X X
☆
Indoor room temp. sensor is open circuit or short circuit X
☆
X
EEROM erro
r
On
☆
X
r
Extinguish
☆
Flash at 5Hz