Haier Unitary smart series Service Manual page 176

9) EEPROM is abnormal
Outdoor indicator shows 01110.
Alarm condition: EEPROM is fault or data is missing.
outdoor indicator shows 01110
check if EEPROM welded points
on outdoor PCB is in good
condition
yes
EEPROM data is
missing, replace PCB
10) Running state detecting abnormal
Outdoor indicator shows 10011.
Alarm condition: when compressor is running, the unit will be abnormal or stop.
outdoor indicator shows 10011
when compressor starting up,
unit stops abnormally and
can not start up normally
yes
Re-electrified after power off,
check if compressor can start
up normally
11) Communication failure between outdoor PCB and module
Outdoor indicator shows 10110
outdoor indicator shows 10110
compressor not start up, outdoor
alarms, check if there is other
failure
yes
check if the wiring between
outdoor PCB and module is
correct
yes
replace PCB
if problem is solved
no
adjust EEPROM
welded point
no
eliminate other troubles
no
replace compressor
no
eliminate other failures
no
adjust wiring
no
replace module
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