Troubleshooting - Midea MSG-30CRN1-QB9P Service Manual

12.2 Troubleshooting

For cooling mode:
Failure phenomenon
Indoor fan speed has been out of control for over 1 minute
Indoor room temp. or evaporator sensor is open circuit or short circuit
Over current protection of the compressor occurs 4 times
EEROM error
No over-zero signal
r Extinguish
☆ Flash at 5Hz
For heat pump mode:
Failure phenomenon
Over current protection of the compressor occurs 4 times
Indoor fan speed has been out of control for over 1 minute
No over-zero signal
Temp. sensor on indoor evaporator is open circuit or short circuit
Indoor room temp. sensor is open circuit or short circuit
EEROM error
r Extinguish
☆ Flash at 5Hz
- 31 -
Service manual
Operation
lamp
☆
X
☆
X
X
On
Operation Timer
lamp lamp
X
☆
On
☆
X
☆
On
☆
☆ ☆
Timer Defrosting
lamp lamp
X
☆
☆ ☆
☆ ☆
X
☆
X
☆
X
☆