Sharp AY-X36RU Service Manual page 30

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