Gree GPC07AH-K3NNC3D Service Manual page 56

3. Fan Can't Swing
Possible Causes
Wrong wire connection, or poor
connection
Fan capacitor is damaged
Supply voltage is too low or too
high
Motor is damaged
4. Compressor Can't Operate
Possible causes
Wrong wire connection, or poor
connection
C a p a c i t y o f c o m p r e s s o r i s
damaged
Power voltage is a little low or
high
Coil of compressor is burnt out
Cylinder of compressor is blocked Compressor can't operate
5. Unit hasn't stop operation afer bucket full or bucket full protection occurs frequently
Possible causes
Water-level switch is open-
circuited
Draw water motor is damaged
6. Abnormal Sound and Vibration
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
There're foreign objects inside air
conditioner or parts are contacting
with each other
Abnormal shake of compressor
Abnormal sound inside the
compressor
54
Discriminating Method (Air conditioner Status)
Check the wiring status according to circuit
diagram
Use universal meter to measure voltage at both
ends of fan capacitor
Use universal meter to measure the voltage
Above circumstances are normal, while the fan
can't operate
Discriminating method (air conditioner status)
Check the wiring status according to circuit
diagram
Measure the capacity of fan capacitor with an
universal 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
Discriminating method (air conditioner status)
The unit hasn't stop operation when water is full
and there's water leakage
Water over-flow protection occurs frequently and
H8 is displayed
Discriminating method (air conditioner status)
There's the sound of "PAPA"
Water-running sound can be heard
Abnomal 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 fan capacitor
You are suggested to equip with voltage
regulator
Repair or replace motor
Troubleshooting
Connect wires according to wiring diagram to
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
Check and repair the water-level switch
Replace draw water motor
Troubleshooting
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Take out foreign objects. Adjust the position of
parts. Stick damping plaster between contacting
parts.
Adjust the support foot mat of compressor,
tighten the bolts.
If add too much refrigerant during maintenance,
please reduce refrigerant properly. Replace
compressor for other circumstances.
Service Manual
Maintenance