Troubleshooting 38
Was the protection activated
in standby?
Was the protection activated
in standby?
Yes
Yes
Is the current normal
?
Is the current normal
?
Yes
No
Replace the outdoor main PCB
Replace the outdoor main PCB
Is the power voltage is normal?
Is the power voltage is normal?
Is outdoor terminal voltage
normal
?
Is outdoor terminal voltage
normal
?
Restart the unit when the power supply
returns to normal
Restart the unit when the power supply
returns to normal
No
Yes
No
Reconnect the
power wiring
Reconnect the
power wiring
Yes
Is the voltage between L and N
is normal
?
Is the voltage between L and N
is normal
?
Yes
Is the input voltage of the
bridge rectifier is normal
?
Is the input voltage of the
bridge rectifier is normal
?
No
No
Is the power wiring
wired correctly?
Is the power wiring
wired correctly?
Reconnect L and N
Reconnect L and N
Are L and N wired
properly?
Are L and N wired
properly?
Reconnect the
bridge rectifier
Reconnect the
bridge rectifier
Is the bridge
rectifier wired
properly?
Is the bridge
rectifier wired
properly?
No
No
Yes
Replace the PFC module (if this has not
been done already)
Replace the PFC module (if this has not
been done already)
No
Is the voltage between P and N
normal refer according to
Index
?
Is the voltage between P and N
normal refer according to
Index
?
Replace the bridge rectifier
Replace the bridge rectifier
No
Is the bridge rectifier
functioning normally?
Is the bridge rectifier
functioning normally?
Is the wiring of the
reactor or inductance
properly wired?
Is the wiring of the
reactor or inductance
properly wired?
Reconnect the wiring
Reconnect the wiring
No
Are the reactor and
inductance functioning
normally
Are the reactor and
inductance functioning
normally
Yes
Replace reactor or
inductance
Replace reactor or
inductance
No
Is the outdoor ambient
temperature is higher than
50
℃
?
Is the outdoor ambient
temperature is higher than
50
℃
?
No
Stop the unit
Stop the unit
Yes
Is the outdoor unit
ventilation functioning
properly?
Is the outdoor unit
ventilation functioning
properly?
Yes
Ensure that the outdoor unit ventilate
is working properly
Ensure that the outdoor unit ventilate
is working properly
Is the heat exchanger dirty?
Is the heat exchanger dirty?
No
Clean the heat exchanger
Clean the heat exchanger
Yes
Check whether the refrigerant
system is running normally
Check whether the refrigerant
system is running normally
Replace outdoor main
board. Does a problem still
exist?
Replace outdoor main
board. Does a problem still
exist?
No
No
Is the outdoor fan running
properly?
Is the outdoor fan running
properly?
Please refer to the solution of the
"fan speed is operating outside of
the normal range" malfunction.
Please refer to the solution of the
"fan speed is operating outside of
the normal range" malfunction.
No
Yes
No
Yes
Yes
Is system pressure too high?
Is system pressure too high?
Recycle the overcharged
refrigerant
Recycle the overcharged
refrigerant
Yes
Note: For certain models, outdoor PCB could not be removed separately. In this case, the outdoor electric
control box should be replaced as a whole.
Summary of Contents for ANERU Series
Page 2: ......
Page 5: ......
Page 6: ...Contents 1 Precautions 2 2 Information servicing For flammable materials 3 Safety Precautions...
Page 12: ...Contents 1 Model Reference 2 2 External Appearance 3 Model Reference...
Page 15: ...Model Reference 4 2 2 Outdoor Unit Single Fan Outdoor Unit Double Fan Outdoor Unit...
Page 18: ...IDU Console 3 2 Dimensional Drawings 16 Drain pipe Hanging arm 195 700 600 210...
Page 21: ...IDU Console 6 6 Air Velocity and Temperature Distributions Discharge Angle 60...
Page 36: ...IDU Compact Cassette 4 2 Dimensional Drawings...
Page 38: ...IDU Compact Cassette 6 4 Service Place...
Page 56: ......
Page 115: ...IDU Super Slim Casstte 54 36k 42k 48k 55k...
Page 118: ......
Page 131: ...IDU Duct 7 6 Fan Performance 12K...
Page 132: ...IDU Duct 8 18K...
Page 133: ...IDU Duct 9 24K...
Page 134: ...IDU Duct 10 30K 36K...
Page 135: ...IDU Duct 11 42K 48K...
Page 136: ...IDU Duct 12 55K...
Page 165: ...IDU Duct 41 12k 18k 24k 30k...
Page 166: ...IDU Duct 42 36k 42k 48k 55k...
Page 178: ......
Page 179: ...35mm 1 38in...
Page 180: ......
Page 256: ...IDU Floor Ceiling 82 36k 48k 55k...
Page 259: ......
Page 267: ...Outdoor Unit 3 Panel Plate B30...
Page 268: ...Outdoor Unit 4 Panel Plate BA30...
Page 269: ...Outdoor Unit 5 Panel Plate CA30...
Page 270: ...Outdoor Unit 6 Panel Plate D30...
Page 271: ...Outdoor Unit 7 Panel Plate X230...
Page 272: ...Outdoor Unit 8 Panel Plate X330...
Page 273: ...Outdoor Unit 9 Panel Plate X430...
Page 274: ...Outdoor Unit 10 Panel Plate E30...
Page 275: ...Outdoor Unit 11 Panel Plate 590...
Page 276: ...Outdoor Unit 12 2 Service Place...
Page 285: ...Outdoor Unit 21 UO70Xo UO90Xo UO100Xo UO100Xo3F...
Page 286: ...Outdoor Unit 22 UO120Xo UO140Xo UO160Xo...
Page 291: ......
Page 292: ......
Page 293: ......
Page 294: ......
Page 295: ...Outdoor unit printed circuit board diagram 17122000044714 17122000048121 17122000046453...
Page 297: ...Outdoor unit printed circuit board diagram 17122000048064...
Page 299: ...Outdoor unit printed circuit board diagram 17122000047742 1 3 4 6 8 9 5 7 10 12 11 2 13...
Page 302: ...Outdoor unit printed circuit board diagram 17122000041841...
Page 304: ...Outdoor unit DC motor driver board diagram 17122000021912 5 6 1 2 3 4...
Page 320: ...3 IDU Installation Duct Connector Connector...
Page 352: ...Product Features 13 Remote LCD Screen Indicators...
Page 549: ......
Page 550: ......
Page 551: ......
Page 552: ...email info rotenso com www rotenso com INSTALLER STAMP...