Advertisement
Installation procedures
Ordinary fault and cause reason
Ordinary fault and cause reason
Before asking sevice location for repairment,please refer item(1)check your air conditioner by yourself,item
(2) is for professional engineer test .
(1)air conditioner start failure ordinary reason
If power supply voltage is in 10% of rated voltage
if control setting is suitable
if air conditioner is connected with main power supply
if fuse opens or circuit halts
Fault Code
Outdoor fault code
LED1light
fault content
shining(times)
3
ambient temp.sensor fault
4
outdoor coil temp. sensor fault
5
outdoor phase sequence fault
discharge temp.A sensor fault
6
discharge temp.B sensor fault
7
discharge temp.C sensor fault
8
communicaiton fault
9
compressor A overcurrent
10
protection fault
compressor B overcurrent
11
protection fault
compressor C overcurrent
12
protection fault
outdoor suction sensor fault
13
high pressure protection fault
14
low pressure protection fault
15
overheat fault
16
compressor discharge temp.
17times
overhigh fault
(2)cooling/heating badly oridinary reason:
refrigerant leakage
cooling system contains non-condensable gas(eg:air)
indoor and outdoor heat exchangers are stucked with dirty
filter is too dirty
cool heat load is too big
filter capillary drier is jamed
air inlet air outlet of indoor outdoor unit are suffocated.
check time
The sensor is broken or short
2 mins
circuit for more than two minutes
The sensor is broken or short
2mins
circuit for more than two minutes
10secs
choose afer electrified
The sensor is broken or short
2mins
circuit for more than two minutes
The sensor is broken or short
2mins
circuit for more than two minutes
The sensor is broken or short
2mins
circuit for more than two minutes
Communication is unusual for
4mins
more than four minutes
after compressor run for 40s,three
5secs
times in 30 minutes
after compressor run for 40s,three
5secs
times in 30 minutes
after compressor run for 40s,three
5secs
times in 30 minutes
The sensor is broken or short
2mins
circuit for more than two minutes
after compressor run ,three
15secs
times in 30 minutes
except defrost process, three
15secs
times in 30 minutes
overheat protection unit stopsfor 3 times
30secs
in one hour
discharge protection unit stops for 3times
2mins
in one hour
30
others
remark
can resume
need check,
resume after reset
can resume
need check,
resume after
reset
can resume
need check,
resume after
reset
Advertisement
