Midea French-Door Series - Page 73

Service Manual_2020-V1.0
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supply and power cable
Blink four times: light 0.5 second,
extinguish 0.5 second, interval
time(extinguish) is 1.5 second
Under voltage
Measure the voltage between L and N
1）If it is less than 92V, replace a new inverter
board
2）If more than 92V, please check the power
supply and power cable
Blink six times: light 0.5 second,
extinguish 0.5 second, interval
time(extinguish) is 1.5 second
Overload
protection
Step 1: Measure whether the U-V-W resistance of
compressor is same
Step 2: If ok, replace a new inverter board
Step 3: If not same, please check the wiring
connection to compressor
Step 4: If the connection is fine, replace a new
compressor
Blink eight times: light 0.5 second,
extinguish 0.5 second, interval
time(extinguish) is 1.5 second
Lock
Step 1: Measure whether the U-V-W resistance of
compressor is same
Step 2: If ok, replace a new inverter board
Step 3: If not same, please check the wiring
connection to compressor
Step 4: If the connection is fine, replace a new
compressor