9 Call the Dealer ImmediatelyIf the following conditions occur, turn off and unplug themain power supply, and then call the dealer immediately.• Abnormal noise is heard during operation.• Water or foreign material gets into the remotecontrol by mistake.• Water leak from the indoor unit.• Switches or buttons do not operate properly.• The circuit breaker switches off frequently.• Power supply cord and plug become unusuallywarm.TROUBLESHOOTING Normal OperationIs it okay?• Air conditioner has been restarted, but does notoperate for 3 minutes.• A sound like water flowing can be heard.• It seems that fog is coming out from the airconditioner.• The room has a peculiar odour.• The outdoor unit emits water or steam.• Operation stops for about 9 minutes duringheating (The power indicator blinks).• During heating operation, indoor fan mayrun at on and off conditions. Abnormal OperationIs it okay?• The air conditioner does not operate.• Air conditioner produces loud noise duringoperation.• The air conditioner does not cool or warmeffectively.This is the answer• This is to protect the air conditioner. Wait until the airconditioner begins to operate.• This is the sound of refrigerant flowing inside the airconditioner.• Condensation occurs when the airflow from the airconditioner cools the room.• This may be a damp smell emitted by the wall,carpet, furniture or clothing in the room.• In COOL/DRY operation, moisture in the aircondenses into water on the cool surface of outdoorunit piping that causes dripping.• This is to melt the frost which has accumulated onthe outdoor unit (defrosting operating). This will takeno longer than about 9 minutes. Water drips fromthe outdoor unit. Wait until this operation ends. (thepower indicator will light up). (Frost will accumulateson the outdoor unit when the outdoor temperature islow and humidity is high.)• This is to prevent undesired cooling effect duringheating operation.Please check• Has the circuit breaker been tripped?• Has the power plug been removed from the walloutlet?• Is the timer being used correctly?• Is the installation work slanted?• Is the front grille closed properly?• Has the temperature been set incorrectly?• Are the filters dirty?• Are the intake or outlet vents of the outdoor unitobstructed?• Are all windows and doors closed?

room air conditioner

Safety Precautions

Name of Each Part

How to Operate

Convenience Operation

Energy Saving and Operation Hints

Troubleshooting

Panasonic CS-A12ATP5 Operating Instructions Manual

Functions

outdoor unit

product specifications

Dimensions

Refrigeration Cycle Diagram

Block Diagram

Wiring Diagram

operation details

heating mode operation

deice control

operating instructions

preparation before operation

convenience operation

troubleshooting

installation instructions

indoor unit

indoor unit installation

connect the cable to the indoor unit

install the outdoor unit

servicing information

troubleshooting guide

technical data

Exploded View

Replacement Parts List

Electronic Parts List

Electronic Circuit Diagram

CS-A12ATP5

CS-A18ATP5

CS-A24ATP5

CU-A12ATP5

CU-A18ATPT5

CU-A24ATPT5