No
Fault Name
Fault Description
Corrective Action
PFC Trip (Oveload)
Protection of driver
Can occure during high current
conditions. If problem persists,
Check power supply to driver.
Check driver communication (
Error!
Reference source not found.
).
Check no obstruction to electrical
box and outdoor coil air inlet.
20
Heat sink Over Heating
Compressor stopped due
to heat sink protection
Check that the airflow around the
ODU is free and the fan is running
free
Check the screws connecting the
driver to heat sink are tighten
Check outdoor fan motors (
13.5.6
)
21
Deicing
During deicing procedure
Normally no action is required
If the problem persists for more than
twice on each hour, check for
refrigerant leak and thermodynamic
operation (
13.3
)
22
Compressor Over
Heating
Compressor stopped due
to over heat protection
Normally no action is required
If the problem persists for more than
twice on each hour, check for
refrigerant leak and thermodynamic
operation (
13.3
)
23 Compressor
Over
Current
Compressor stopped due
to over current protection
Normally no action is required
If the problem persists for more than
twice on each hour, check for
refrigerant leak or clog and
thermodynamic operation (
13.3
)
24
No OFAN Feedback
(Both OFAN_UP or
OFAN_DN)
Outdoor fan(s) does not
rotate
Check no obstruction to outdoor unit
coil air path
Check OFAN motor (
13.5.6
)
25
OFAN IPM fault / OFAN
IPM Driver Pin
Not available
-
26 Compressor
Lock
Compressor does not
rotate
Check Compressor (
13.5.7
)
Check driver (
13.5.4
)
27 Indoor
Coil
defrost
Indoor coil is freezing -
protection
Normally no action is required
If the problem persists for more than
twice on each hour:
Check refrigerant leakage – add
refrigerant if required according
pressure charts on section
Error!
Reference source not found.
.
Check ICT sensor – replace if
required
Check IFAN motor and capacitor
(
13.5.14
)
28 Sweat
protection
NA
NA
29 Indoor
Sensor
fault
Thermistor not connected
or damaged
Check Thermistor
( 13.5.10)
30
Outdoor/Indoor Coil
Overheating
Compressor stopped due
to over pressure protection
Normally no action is required
If the problem persists for more than
twice on each hour, check for
refrigerant clog and thermodynamic
operation (
13.3
)
31
Operation conditions are
System is performing out
Check if indeed the conditions are
TROUBLESHOOTING
1
3
-10
SM
HJD
DCI 1-A GB
8
Summary of Contents for AW-HJD009-N11
Page 46: ...9 SM HJD DCI 1 A 2 GB ...
Page 53: ...CONTROL SYSTEM 12 SM HJD DCI 1 A 1 GB SM HJD DCI 1 A 2 GB ...
Page 72: ...3 3 3 3 3 12 4 3 4 12 4 4 12 4 4 1 12 4 4 2 12 4 4 3 CONTROL SYSTEM 12 23 SM HJD DCI 1 A GB ...
Page 92: ...12 11 7 Segme ent Legend d CONTROL SYSTEM 12 44 SM HJD DCI 1 A GB 3 ...
Page 109: ...5 5 HJD00 0 SM HJD DCI 1 A 2 GB 14 14 1 14 1 ...
Page 112: ...5 4 HJD0 SM HJD DCI 1 A 2 GB 4 4 ...
Page 114: ...5 6 HJD0 SM HJD DCI 1 A 2 GB 4 4 ...
Page 117: ...5 8 YBDE00 0 18 SM HJD DCI 1 A 2 GB 4 4 14 9 14 9 012 DCI ...
Page 131: ...SM HJD DCI 1 A 2 GB 5 ...
Page 132: ... SERVICE MANUAL HJD DCI Series ...