Midea M-Thermal Series Service Manual page 49

M‐Thermal Split
4.5 E5, E6, E9, EA Troubleshooting
Digital display output
Description
 E5 indicates an air side heat exchanger refrigerant outlet temperature sensor error.
 E6 indicates an outdoor ambient temperature sensor error.
 E9 indicates a suction pipe temperature sensor error.
 EA indicates a discharge temperature sensor error.
 M‐Thermal Split stops running.
 Error code is displayed on outdoor unit main PCB and user interface.
Possible causes
 Temperature sensor not connected properly or has malfunctioned.
 Damaged outdoor unit main PCB.
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