Malfunction Code And Troubleshooting; Outdoor Unit Malfunction Code And Troubleshooting - Midea LRSJF-V120 Technical Manual

MCAC-RTSM-2012-07
Low heating effect

4. Malfunction Code and Troubleshooting

If there is phenomenon as follows, please stop running and cut power supply and refer to the following.
If the problem still appears, please contact with your dealer and offer machine's model and detailed malfunction.

4.1 Outdoor unit malfunction Code and troubleshooting

Display
E0
E2
E3
E4
E5
E6
E7
E8
P0
P1
P2
P3
P4
P5
P6
P7
P8
Display Function Instruction:
1. When stand by, LED displaying the amount of indoor units online which communicate with outdoor units.
2. When operation, LED displaying frequency value of compressor. 3. When defrost, LED displaying "dF".
exchanger is dirty.
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The water filter is dirty.
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Inlet/outlet of indoor/outdoor units is
blocked.
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Sunlight shines directly.
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Too much heat resource.
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Outdoor temp. is too high.
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Leakage of refrigerant or lack of
refrigerant.
Outdoor temperature is lower than 7℃
Leakage of refrigerant or lack of refrigerant.
Communication error of the outdoor chip and the indoor chip
Heating fan error in the area A lasts for 5 minutes
There are two times E6 error in 10 minutes(recovery will be after power off)
The cooling fin high temperature protection
Compressor current protection
Discharge temperature protection
Outdoor condenser T3 high temperature protection
Evaporator T2 high temperature protection
M-thermal Technical Manual (part 4)
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Malfunction or Protection
EEPROM error
Communication error
T3, T4 sensor error
Voltage protection error
Direct-current fan error
High pressure protection
Low pressure protection
Modules protection
Typhoon protection
Clean the water filter.
Eliminate all dirties and make air
smooth.
Make curtains in order to shelter from
sunshine.
Reduce heat source.
AC cooling capacity reduces
(normal).
Check leakage and rightly recharge
refrigerant.
Use heating device.
Check leakage and rightly recharge
refrigerant.