CW-XC51LE - Panasonic Air Conditioner Service Manual (repair manual). Page 6

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1.  Supply Voltage.
2. Fuse box or Circuit

Breaker.

3.  Power cord or wiring

harness.

4. Temp. Setting.
1. Objects around fan.

2. Resistance between

wires.

3. Capacitor Fan Motor.
1. Temperature setting.
2. Resistance between

terminal and the
compressor body.

3. Resistance between

terminals.

4. Overload Protector (OLP).
5. Capacitor Compressor.

1. Thermostat setting.
2. Air filter dirty.
3. Location of installation.

4. Evaporator/Condensor coil

obstructed.

5. Unit capacity to small or

room to big.

6. Temperature and

current difference.

1. Source of noise.

1. Unit installation.
2. Drain Tray-styrofoam

pieces blocking drain
channel.

Less than 10% by rated.
Open Contacts.

Pulled loose or shorted.

Higher than room temperature.
Locked fan.

Shorted/Open circuit.

Ohm Meter doesn't deflect.
Higher than room temperature.
Shorted.

Shorted.

Infinity between terminals.
Ohm Meter doesn't deflect.

Higher than room temperature.
Clogged or dirty.
Sunlight hitting outdoor side
obstacles.

Clogged or dirty.

Not satisfied.

Refer performance
evaluation.
Vibration.

Intermitten noise.

Tilted to inside the room.
Clogged.

Costumer restarted unit
immidiatelly without waiting
3 minutes.

Fan hitting cowling of
foreign materials.
Frozen Bearings.
Shorted or burned out.

Capacitor defect.
Winding coil touch to the body
Rare shorted or burn out.

Overload Protector (OLP) broken.
Capacitor defect.

Restricted air circulation.
Restricted heat exchanger.
Restricted heat exchanger.

Restricted air circulation.

Leakage of refrigerant or
refrigerant systems is blocked.
Faulty installation.

Fan hitting object.

Refrigerant tubing touching
each other.
Fan splash Drain water.

Restricted run off.
Clogged or blocked.

Consult to an electician.
Repair open circuit.
Wait for 3 minute.
Repair or replace it.

Set it to lower.
Adjust  fan position setting.
Remove foreign materials.

Replace wires.

Replace capacitor fan motor.
Set it to lower.
Replace compressor.

Replace compressor
terminals.
Replace  Overload    Protector.
Replace capacitor compres-
sor.
Set it to lower.
Clean or replace air filter.
Consider to build an awning.
Remove obstacle or reinstall
unit.
Clean by steam cleaner.

Replace the unit with bigger
capacity.
Locate and repair leak.
Flush refrigeration cycle.
Reinstall unit or reinforce
the installation.
Adjust fan position or remove
foreign materials.
About 1/2" Clearance.

Set the drain outlet
downward, so that the
drain water can run off.

Tilt unit to out side slightly.
remove the foreign materials.