Midea V6R VRF Series Service Manual page 154

3.4 E7: EEPROM error
Digital display output
Description
 EEPROM error.
 All units stop running.
 Error code is displayed on the malfunction MS box.
 The indoor unit display board or wired controller connected to this MS displays "F8".
Trigger / recover condition
 Trigger condition: MS EEPROM parameter is mismatch.
 Recover condition: Cannot recover.
 Reset method: Manually restart.
Possible causes
 MS PCB damaged.
Procedure
Replace the MS main PCB
E7
V6R VRF 50Hz
153