30
AY-X36RU
AE-X36RU
4.
ODU Fan Motor Can’t Operate
Possible causes
Discriminating method (air conditioner status)
Troubleshooting
Wrong wire connection, or
poor connection.
Check the wiring status according to circuit dia-
gram.
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly.
Capacity of the ODU fan
motor is damaged.
Measure the capacity of fan capacitor with an uni-
versal meter and find that the capacity is out of the
deviation range indicated on the nameplate of fan
capacitor.
Replace the capacity of fan.
Power voltage is a little low
or high.
Use universal meter to measure the power supply
voltage. The voltage is a little high or low
Suggest to equip with voltage regulator.
Motor of outdoor unit is dam-
aged.
When unit is on, cooling/heating performance is bad
and ODU compressor generates a lot of noise and
heat.
Change compressor oil and refrigerant. If no
better, replace the compressor with a new one.
5.
Compressor Can’t Operate
Possible causes
Discriminating method (air conditioner status)
Troubleshooting
Wrong wire connection, or
poor connection.
Check the wiring status according to circuit diagram Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly.
Capacity of compressor is
damaged.
Measure the capacity of fan capacitor with an uni-
versal meter and find that the capacity is out of the
deviation range indicated on the nameplate of fan
capacitor.
Replace the compressor capacitor.
Power voltage is a little low
or high.
Use universal meter to measure the power supply
voltage. The voltage is a little high or low.
Suggest to equip with voltage regulator.
Coil of compressor is burnt
out.
Use universal meter to measure the resistance
between compressor terminals and it's 0.
Repair or replace compressor.
Cylinder of compressor is
blocked.
Compressor can't operate.
Repair or replace compressor.
6.
Air Conditioner is Leaking
Possible causes
Discriminating method (air conditioner status)
Troubleshooting
Drain pipe is blocked.
Water leaking from indoor unit.
Eliminate the foreign objects inside the drain
pipe.
Drain pipe is broken.
Water leaking from drain pipe.
Replace drain pipe
Wrapping is not tight.
Water leaking from the pipe connection place of
indoor unit.
Wrap it again and bundle it tightly.
7.
Abnormal Sound and Vibration
Possible causes
Discriminating method (air conditioner status)
Troubleshooting
When turn on or turn off the
unit, the panel and other
parts will expand and there's
abnormal sound.
There's the sound of "PAPA".
Normal phenomenon. Abnormal sound will dis-
appear after a few minutes.
When turn on or turn off the
unit, there's abnormal sound
due to flow of refrigerant
inside air conditioner.
Water-running sound can be heard.
Normal phenomenon. Abnormal sound will dis-
appear after a few minutes.
Foreign objects inside the
indoor unit or there are parts
touching together inside the
indoor unit.
There's abnormal sound fro indoor unit.
Remove foreign objects. Adjust all parts' position
of indoor unit, tighten screws and stick damping
plaster between connected parts.
Foreign objects inside the
outdoor unit or there are
parts touching together
inside the outdoor unit.
There's abnormal sound fro outdoor unit.
Remove foreign objects. Adjust all parts' position
of outdoor unit, tighten screws and stick damp-
ing plaster between connected parts.
Short circuit inside the mag-
netic coil.
During heating, the way valve has abnormal elec-
tromagnetic sound.
Replace magnetic coil.
Abnormal shake of compres-
sor.
Outdoor unit gives out abnormal sound.
Adjust the support foot mat of compressor, tight-
en the bolts.
Abnormal sound inside the
compressor.
Abnormal sound inside the compressor
If add too much refrigerant during maintenance,
please reduce refrigerant properly. Replace
compressor for other circumstances.
