Filter
Top Products
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:
re
p
lace PCB
yes
replace sensor
no
no
adjust piping
outdoor indicator shows
yes
adjust refrigerant
check if the system
piping is blocked
check if refrigerant is too
much or too less
check if discharging temp.
sensor value is normal
no
yes
5)Compressor discharging temperature protection
Outdoor indicator shows 00100.
Alarm condition: Within half an hour after compressor is running, compressor
discharging temperature is over 120degree for 3 times continously.
>a__WcU[S^ <[c >a`V[e[a`Wc
-174-