Midea MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1, MSH-12CRN1, MSH-12HRN1 Manual page 203

7.Troubleshooting
7.1 For all cooling only model
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
EEPROM error
No over-zero signal
r Extinguish
¡ î Flash at 5Hz
7.2 For all heat pump model
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
EEPROM error
r Extinguish
¡ î Flash at 5Hz
8 Electronic function
8.1 Electric Control working environment
8.1.1 input voltage: 175~253V
8.1.2 Input power frequency:50Hz
8.1.3 Ambient temperature: -7°C~+43°C
8.1.4 Indoor fan normal working amp is less than 1A,
8.1.5 Outdoor fan. Normal working amp is less than 1.5A
8.1.6 Four-way valve normal working amp is less than 1A.
8.1.7 Swing motor: DC12V.
8.1.8 Compressor: single-phase power supply. Its normal working amp is less than 15A
8.2 Proper symbols and their meanings:
TA: Indoor ambient temperature
TE: Indoor evaporator temperature
TS: Setting temperature through the remote controller
I : Self-protection amp of compressor, continue three seconds until turns off the compressor.
3sec
I : Self-protection amp of compressor, continue five minutes until turns off the compressor.
5MIN
I : Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind.
FAN
I : Amp self-protection return value
RESTORE
TH : High wind, defrosting temperature difference
DEFROST
TM : Middle wind, defrosting temperature difference
DEFROST
TL : Low wind, defrosting temperature difference
DEFROST
TE1: Anti-cold wind, from Fan Off to Breeze temperature
Operation lamp Timer lamp
¡ î
¡ î
X
On
¡ î
Operation lamp Timer lamp
¡ î
X
¡ î
X
X
On
87
X
On
¡ î
¡ î
¡ î
Defrosting lamp
X ¡ î
¡ î ¡ î
¡ î ¡ î
X ¡ î
¡ î X
¡ î X