Panasonic CS-KS12NB41 & CZ-18BT1U + CU-KS12NK1A Technical & Service Manual

Also see for CS-KS12NB41: Operating instructions

Contents

Panasonic CS-KS12NB41 & CZ-18BT1U + CU-KS12NK1A Technical & Service Manual Manual pdf 85 page image

15TROUBLESHOOTING(BEFORE CALLING FOR SERVICE)If your air conditioner does not work properly, first check the followingpoints before requesting service. If it still does not work properly,contact your dealer or service center.OPERATING RANGEThe air conditioner is operable within the temperature ranges aslisted below:For Cooling Only Models : CU-KS18NKUFor Low Ambient Cooling Models : CU-KS12NK1A, CU-KS18NKUAFor Cooling Only Models : CU-3KS19NBU, CU-4KS24NBU,CU-4KS31NBUWIRED REMOTE CONTROLLERA separately sold wired remote controller (CZ-RD515U)used with this air conditioner is also available. If you wishto use the wired remote control function, you will need topurchase the optional wired remote controller.Trouble Possible Cause RemedyAir conditioner doesnot run at all.1. Power failure. 1. Restore power.2. Leakage circuitbreaker tripped.2. Contact servicecenter.3. Line voltage is toolow.3. Consult yourelectrician ordealer.4. Batteries in remotecontroller have rundown.4. Replace batteries.OPERATION lampblinks and airconditioner does notoperate.Trouble in system. Contact servicecenter.Compressor runs butsoon stops.Obstruction in front ofcondenser coil.(Outdoor Unit)Remove obstruction.Poor coolingperformance.1. Dirty or clogged airfilter.1. Clean air filter toimprove airflow.2. Heat source ormany people inroom.2. Eliminate heatsource if possible.3. Doors and/orwindows are open.3. Shut them to keepthe heat out.4. Obstacle near airintake or airdischarge port.4. Remove it to ensuregood airflow.5. Thermostat is settoo high for cooling.5. Set the temperaturelower.Clicking sound isheard from the airconditioner.In cooling operation,any plastic parts mayshrink due to asudden temperaturechange. In this event,a clicking sound mayoccur.This is normal, andthe sound will soondisappear.OPERATION lamplights but outdoor unitwill not run.The use of cellularphones near the airconditioner may causedisturbance to itsnormal operation.1. Turn off the powerthen restart the airconditioner after awhile.2. Consult your dealer.TIMER lamp blinks(3 sec. interval) andair conditioner doesnot operate.FLOAT SWITCH isactived.Contact servicecenter.Temperature Indoor airtemperatureOutdoor airtemperatureCOOLING Max. 95 °F DB /71 °F WB115 °F DBMin. 67 °F DB /57 °F WB67 °F DBTemperature Indoor airtemperatureOutdoor airtemperatureCOOLING Max. 95 °F DB /71 °F WB115 °F DBMin. 67 °F DB /57 °F WB0 °F DBTemperature Indoor airtemperatureOutdoor airtemperatureCOOLING Max. 95 °F DB /71 °F WB115 °F DBMin. 67 °F DB /57 °F WB14 °F DB