Haier AC242ACEAA [365/408] Troubleshooting

Haier AC362AFEAA [365/408] Troubleshooting
Warning: For outdoor DC fan motor, forbidden to pull off the plug when
being electrified.
Replace motor
Check if the outdoor unit fan
blade is blocked by some objects
Check if the lead wire of DC motor
is broken or short-connected
no
yes
adjust lead wire
of fan motor
adjust fan blade to
make it run normally
3) Outdoor DC motor abnormal
outdoor indicator shows 00010
Outdoor indicator displays 00010.
Alarm condition:outdoor DC motor is blocked rotor or broken, abnormal.
This fault is only used when indoor unit is with DC fan motor.
yes
no
For wall mounted unit:
yes
check if the failure
is eliminated
yes
no
4) Communication error between indoor and outdoor units
Outdoor indicator shows 00011
LCD of wall mounted displays
E7
yes
If communication wire is
damaged or broken off
Check if communication wiring
between indoor and outdoor is
correct and if power wiring is
correct
Replace indoor PCB
no
adjust wiring
re-wiring
Replace outdoor
PCB
no
Replace indoor
PCB
yes
adjust the
position
no
no
Replace outdoor
PCB
adjust wiring and
power supply
eliminate other
faults
yes
check the 4th bit of SW5 on
PCB is at "OFF", the others
are at "ON"
if indoor unit alarms other
failure codes
check if wiring between indoor
and outdoor is correct, power
supply is 50Hz
no
compressor can not startup after
unit is switched on for 4 minutes
yes
check if the failure
is eliminated
yes
For convertible unit and ceiling concealed unit:
Troubleshooting
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