Midea ATOM B Series Service Manual page 57

Atom B Series VRF 50/60Hz
2.8 E9: EEPROM error (For all models)
2.8.1 Digital display output
E9
2.8.2 Description
 EEPROM error
 The system stops running.
 Error code is displayed on the outdoor unit PCB.
2.8.3 Trigger / recover condition
 Trigger condition: Unable to read the EEPROM when startup.
 Recover condition: EEPROM goes back to normal.
 Reset method: Manually restart.
2.8.4 Possible causes
 The EEPROM is not inserted well
 Damaged main PCB.
2.8.5 Procedure
Check whether the EEPROM is inserted well.
56
E9
Yes
Replace outdoor main PCB.
No
Insert the EEPROM well