Midea MOB2-12HN1-QC2 - Troubleshooting Guide; Indoor Unit Error Displays

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9. Troubleshooting
9.1 Indoor unit error display
For MSR1-21CRN1-QB8W, MSR1-24CRN1-QB8W models:
Operation
lamp
Timer
lamp
Auto lamp Failure
☆ ☆ ☆ Over current protection occurs 4 times.
☆ X X The T2 sensor is open circuit or short circuit
X ☆ X The T1 sensor is open circuit or short circuit
☆ ☆ X EEPROM error
X X ☆ Indoor / outdoor units communication error
For MSR1-21HRN1-QB8W, MSR1-21HRN1-QB4W, MSR1-24HRN1-QB4W, MSR1-24HRN1-QB8W
models:
Operation
lamp
Timer
lamp
Defrosting
lamp
Auto
lamp
Failure
☆ ☆ ☆ X Over current protection occurs 4 times.
☆ X X X The T2 sensor is open circuit or short circuit
X ☆ X X The T1 sensor is open circuit or short circuit
X X ☆ X The T3 sensor is open circuit or short circuit
☆ ☆ X X EEPROM error
X X X ☆ Indoor / outdoor units communication error
O（light） X（off） ☆（flash）