2.7 xE9: EEPROM mismatch
Digital display output
In the error code, 'x' is a placeholder for the compressor system (compressor and related electrical components), with 1
representing compressor system A and 2 representing compressor system B.
Description
1E9 indicates a compressor A EEPROM mismatch.
2E9 indicates a compressor B EEPROM mismatch.
All units stop running.
Error code is only displayed on the unit with the error.
Trigger / recover condition
Trigger condition: Compressor drive parameter is mismatch.
Recover condition: Compressor drive parameter is match.
Reset method: Manually restart.
Possible causes
Outdoor unit was powered on immediately after being powered off.
Main PCB damaged.
85