Troubleshooting; For All Cooling Only Model; For All Heat Pump Model - Midea MSQ-07CR Service Manual

Failure phenomenon
Indoor fan speed has been out of control for over 1 minute
Indoor room temp. or evaporator sensor is open circuit or
Over current protection of the
compressor occurs 4 times
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
39
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13. Troubleshooting

13.1.

For all cooling only model

short circuit
EEROM error
No over-zero signal
 Extinguish
☆ Flash at 5Hz
13.2.

For all heat pump model

 Extinguish
☆ Flash at 5Hz
Operation lamp
☆
☆
X
On
☆
Operation lamp Timer lamp
☆
X
X ☆
☆ ☆
X X
☆
X
On ☆
Timer lamp
X
On
☆
☆
☆
Defrosting lamp
☆
☆
☆
☆
X
X