Haier AU142AFBEA - Page 296

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2) EEPROM failure
start
Is EEPROM in mainboard
inversely connected or in
poor contact?
reconnect
yes
no
replace EEPROM
Power on again to
check if failure is
eliminated
no
replace PCB
3) Malfunction of no load
confirm the no-load malfunction
according to fault code list
Power on again to
check if compressor
runs normally
no
no
Check rectifier, power module
and connection to locate the
problem that causes no
function of compressor
Does AC power cable
go through current
transducer?
yes
Check if the fault disappears after
the outdoor PCB is replaced
yes
yes
Put the cable
through CT
outdoor PCB
failure
Wrong fault code. Check
other possible causes
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