Panasonic CU-KS24NKU Troubleshooting Before Calling For Service, Operating Range, Possible Cause

Models: CU-KS24NKUA CS-KS24NKU CU-KS24NKU

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TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)

TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)

If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center.

Trouble

 

Possible Cause

 

Remedy

 

 

 

 

Air conditioner does not run at all.

1.

Power failure.

1. Restore power.

 

2.

Leakage circuit breaker tripped.

2.

Contact service center.

 

 

 

 

3.

Line voltage is too low.

3.

Consult your electrician or dealer.

 

4.

Batteries in remote controller have

4.

Replace batteries.

 

 

run down.

 

 

 

 

 

OPERATION lamp blinks and air

Trouble in system.

Contact service center.

conditioner does not operate.

 

 

 

 

 

 

 

Compressor runs but soon stops.

Obstruction in front of condenser coil.

Remove obstruction.

 

(Outdoor Unit)

 

 

 

 

 

 

 

Poor cooling performance.

1.

Dirty or clogged air filter.

1.

Clean air filter to improve airflow.

 

2.

Heat source or many people in room.

2.

Eliminate heat source if possible.

 

3.

Doors and/or windows are open.

3.

Shut them to keep the heat out.

 

4.

Obstacle near air intake or air

4.

Remove it to ensure good airflow.

 

 

discharge port.

 

 

 

5.

Thermostat is set too high for cooling.

5.

Set the temperature lower.

 

 

 

Clicking sound is heard from the air

In cooling operation, any plastic parts

This is normal, and the sound will soon

conditioner.

may shrink due to a sudden

disappear.

 

temperature change. In this event, a

 

 

 

clicking sound may occur.

 

 

 

 

 

 

OPERATION lamp lights but outdoor

The use of cellular phones near the air

1.

Turn off the power then restart the air

unit will not run.

conditioner may cause disturbance to its

 

conditioner after a while.

 

normal operation.

 

 

 

 

 

2.

Consult your dealer.

 

 

 

 

 

 

 

 

 

 

OPERATING RANGE

The air conditioner is operable within the temperature ranges as listed below:

For Cooling Only Models : CU-KS18NKU, CU-KS24NKU

 

Temperature

Indoor air temperature

Outdoor air temperature

 

 

 

 

COOLING

Max.

95 °F DB / 71 °F WB

115 °F DB

 

 

 

 

 

Min.

67 °F DB / 57 °F WB

67 °F DB

 

 

 

 

For Low Ambient Cooling Models : CU-KS18NKUA, CU-KS24NKUA

 

 

 

 

 

 

Temperature

Indoor air temperature

Outdoor air temperature

 

 

 

 

COOLING

Max.

95 °F DB / 71 °F WB

115 °F DB

 

 

 

 

 

Min.

67 °F DB / 57 °F WB

0 °F DB

 

 

 

 

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Panasonic CU-KS24NKU, CS-KS24NKU Troubleshooting Before Calling For Service, Operating Range, Possible Cause, Remedy