Panasonic CS-MKS9NKU, CS-MKS24NKU, CS-MKS18NKU service manual Condition E12

Page 40
(3-2) Condition: E12

(3-2) Condition: E12

1.Disconnect the inter-unit wiring on the indoor unit side.

2.Operate the system in TEST RUN mode. Then, five minutes later, perform the self-diagnosis.

What is the self-diagnosis result ?

Condition: E12

1.Disconnect the inter-unit wiring on the outdoor unit side.

2.Operate the system in TEST RUN mode. Then, five minutes later, perform the self-diagnosis.

What is the self-diagnosis result ?

Condition: E12

An error in the P. C. Board in the outdoor unit might be considered.

(Connection error between the P. C. Board in

the outdoor unit and J-B)

Condition: E01

An error in the P. C. Board in the indoor unit might be considered.

(Terminal board error, etc.)

Condition: E01

An error in the inter-unit wiring

might be considered.

(ex. wire breaking or connection error, etc.)

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Contents INDOOR UNIT CS-MKS7NKU CS-MKS9NKU CS-MKS12NKU CS-MKS18NKU CS-MKS24NKUTECHNICAL & SERVICE MANUAL DC INVERTER MULTI-SYSTEM AIR CONDITIONERSAFETY PRECAUTIONS If refrigerant gas leaks during the work, ventilate the room Table of Contents 2. SPECIFICATIONS4. REFRIGERANT FLOW DIAGRAM 8. TROUBLESHOOTING BEFORE CALLING FOR SERVICEAPPLICABLE MULTI-OUTDOOR UNITS 1. OPERATING RANGE TemperatureIndoor Air Intake Temp Outdoor Air Intake TempSPECIFICATIONS Unit SpecificationsFeatures Dimensions & WeightFeatures Dimensions & WeightType Voltage RatingFeatures Dimensions & WeightType Voltage RatingFeatures Dimensions & WeightType Voltage RatingFeatures Dimensions & WeightType Voltage RatingFeatures Dimensions & WeightType Voltage RatingFeatures Dimensions & WeightType Voltage RatingFeatures Dimensions & WeightType Voltage RatingFeatures Dimensions & WeightType Voltage RatingFeatures 2-2. Major Component Specifications 2-2-1. Indoor UnitControl PCB Fan MotorIndoor Unit CS-MKS9NKU Indoor Unit CS-MKS12NKU Indoor Unit CS-MKS18NKU Indoor Unit CS-MKS24NKU Resistance k ohm 2-3. Other Component SpecificationsTemperature F C 3. DIMENSIONAL DATA CS-MKS9NKU CS-MKS12NKUCS-MKS24NKU CS-MKS18NKU4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram5-1. Air Throw Distance Charts 5. PERFORMANCE DATACS-MKS9NKU Room air temp. 80F 26.7C Cooling Cooling Cooling 6-1. Electric Wiring Diagrams 6. ELECTRICAL DATAASSY LAMP7. FUNCTIONS 7-1. Operation FunctionsEmergency operation SENSOR DRYHIGH POWER Timer backupNIGHT SETBACK Lamp colors7-2. Protective Functions Freeze prevention8. TROUBLESHOOTING BEFORE CALLING FOR SERVICE 8-1. Precautions before Performing Inspection or Repair8-2. Method of Self-Diagnostics PROCEDUREINDOOR UNIT 1 OPERATION lamp 2 TIMER lamp 3 QUIET lamp OPERATION button REMOTE CONTROL receiverDIAGNOSIS CONTENTS INDICATION ON INDOOR UNIT2 If the self-diagnostics function fails to operate No indicators illuminate and the indoor fan does not rotateCheck the power voltage Blown Check the indoor unit Is the fuse blown?8-3. Checking the Indoor and Outdoor Units T-RUN Test run compressor and fan motor turn ON3 How to Identify a Serial Communication Error Timer3-2 Condition E12 8-4. Trouble Diagnosis of Fan Motor 8-4-1. Indoor Fan Motor8-5. Noise Malfunction and Electromagnetic Interference Locations most susceptible to noiseTrouble CorrectionPage APPENDIX A Operating Instructions CS-MKS7NKU CS-MKS9NKU CS-MKS12NKUOperating Instructions Split System Air Conditioner CS-MKS7NKU CS-MKS9NKU CS-MKS12NKUCU-3KS19NBU CU-4KS24NBU CU-4KS31NBU Model No Indoor UnitsFEATURES CONTENTSSAFETY PRECAUTIONS PRODUCT INFORMATIONSAFETY INSTRUCTIONS INSTALLATION LOCATIONELECTRICAL REQUIREMENTS Refrigerant gas leakage may cause fire NAMES OF PARTS Air Intakes INDOOR UNIT Air Outlet Remote Controller Drain HoseRemote Controller Refrigerant Tubes OUTDOOR UNIT Air OutletUNIT DISPLAY AND OPERATION BUTTON REMOTE CONTROLLER DISPLAY REMOTE CONTROLLER REMOTE CONTROLLER CONTINUED SWEEPUSING THE REMOTE CONTROLLER USING THE REMOTE CONTROLLER CONTINUED OPERATION WITH THE REMOTE CONTROLLER 1. Operation2. Adjusting the Fan Speed OPERATION WITH THE REMOTE CONTROLLER CONTINUED3. Fan Only 4. Night Setback Mode SettingIn Cooling and DRY Mode and Night Setback Mode is used for saving energy6. HIGH POWER Mode 5. QUIET ModeRemote Controller SPECIAL REMARKS‘‘DRY’’ Operation Cooling OperationSETTING THE TIMER 1. How to set the present timeSETTING THE TIMER CONTINUED REPEAT timerUSING THE 1-HOUR OFF TIMER TIPS FOR ENERGY SAVINGSetting procedure Cancellation procedureADJUSTING THE AIRFLOW DIRECTION OPERATION WITHOUT THE REMOTE CONTROLLER CARE AND CLEANINGCARE AND CLEANING CONTINUED How to remove the filter 1. Grasp both ends of the airfilter Groove Pin Air intake grilleWhen using a footstool or the like, be careful not to let it tip over WIRED REMOTE CONTROLLERWashing the grille with water TROUBLESHOOTING BEFORE CALLING FOR SERVICE OPERATING RANGETrouble Possible CauseSPECIFICATIONS Model NoIndoor Unit Outdoor UnitAPPENDIX B Operating Instructions CS-MKS18NKU CS-MKS24NKUCS-MKS18NKU CS-MKS24NKUModel No Indoor UnitsFEATURES CONTENTSSAFETY PRECAUTIONS Simple One-touch Remote ControllerSAFETY INSTRUCTIONS INSTALLATION LOCATIONELECTRICAL REQUIREMENTS Refrigerant gas leakage may cause fire Air Intakes INDOOR UNIT Air Outlet Remote Controller Drain Hose Remote ControllerNAMES OF PARTS Refrigerant Tubes OUTDOOR UNIT Air OutletUNIT DISPLAY AND OPERATION BUTTON REMOTE CONTROLLER DISPLAY REMOTE CONTROLLER REMOTE CONTROLLER CONTINUED USING THE REMOTE CONTROLLER REMOTE CONTROLLER CONTINUEDUSING THE REMOTE CONTROLLER CONTINUED OPERATION WITH THE REMOTE CONTROLLER 1. Operation2. Adjusting the Fan Speed OPERATION WITH THE REMOTE CONTROLLER CONTINUED3. Fan Only OPERATION WITH THE REMOTE CONTROLLER CONTINUED 4. Night Setback Mode6. HIGH POWER Mode OPERATION WITH THE REMOTE CONTROLLER CONTINUED5. QUIET Mode Remote Controller SPECIAL REMARKS‘‘DRY’’ Operation Cooling OperationSETTING THE TIMER 1. How to set the present timeSETTING THE TIMER CONTINUED REPEAT timerUSING THE 1-HOUR OFF TIMER Setting procedureCancellation procedure 2. Operation together with the DAILY ON/OFF REPEAT TimerADJUSTING THE AIRFLOW DIRECTION OPERATION WITHOUT THE REMOTE CONTROLLER Groove Pin Air intake grille Air intake grille WIRED REMOTE CONTROLLER CARE AND CLEANING CONTINUEDTROUBLESHOOTING BEFORE CALLING FOR SERVICE OPERATING RANGETrouble Possible CauseSPECIFICATIONS APPENDIX C INSTALLATION INSTRUCTIONS CS-MKS7NKU CS-MKS9NKU CS-MKS12NKU CS-MKS18NKU CS-MKS24NKUINSTALLATION INSTRUCTIONS Split System Air Conditioner ContentsNOTE External diameter of service port R410A 5/16 For Indoor UnitSPECIAL PRECAUTIONS When TransportingWhen Installing… In Case of Improper InstallationOthers When Servicing‡ &KHFNFDUHIXOO\IRUOHDNVEHIRUHVWDUWLQJWKHWHVWUXQ 1. General 1-1. Tools Required for Installation not supplied1-2. Accessories Supplied with Unit Table obtaining wire. Also, check2. Installation Site Selection 1-5. Additional Materials Required for Installation2-1. Indoor Unit AVOID2-2. Embedding the Tubing and Wiring 3. How to Install the Indoor Unit trical wiring or conduits are3-1. Remove the Rear Panel from the Unit 3-2. Make a Hole3-3. Install the Rear Panel on the Wall a If Wooden Wallb If Block, Brick, Concrete or Similar Type Wall Fig. 13a3-4. Removing and Installing the Grille 3-4-1. Indoor unit types 3-4-2. Indoor unit types CS-MKS18NKU, CS-MKS24NKU Fig. 19b-1Fig. 16a-1 Fig. 16b-1 Fig. 17a-1 Fig. 17b-13-6. Wiring Instructions General precautions on wiring 3-5. Shape the Indoor Side TubingFig. 26a 3-7. Wiring Instructions for Inter-unit ConnectionsFig. 26b WARNING Loose wiring may cause the terminal to overheat or result How to connect wiring to the terminal a For Indoor Unitb For Outdoor Unit  For solid core wiring or F-cable  For stranded wiring3-8. Mounting  Right-side tubingFig. 37a Fig. 37bSwitching drain hose and drain cap  Left-side tubingDrain hose Drain capDo not supply power to the tubing and wiring to the outTo unmount indoor unit 3-9. Drain HoseFig. 59a Fig. 59b 4. How to Test Run the Air ConditionerFig. 59c 5. Remote Controller Installation Position 6. Address Switch 6-1. Address Setting of the Remote Controller7. Connecting a Home Automation Device 8. Installation Check SheetPage DC1111-0
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CS-MKS18NKU, CS-MKS9NKU, CS-MKS24NKU specifications

The Panasonic CS-MKS7NKU, CS-MKS9NKU, and CS-MKS12NKU are part of Panasonic's reputable air conditioning lineup, designed to provide efficient and comfortable cooling and heating solutions for various spaces. These models are ideal for residential and light commercial use, showcasing a blend of innovative technology and user-friendly features.

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In summary, the Panasonic CS-MKS7NKU, CS-MKS9NKU, and CS-MKS12NKU are highly efficient air conditioning units that combine inverter technology, advanced air purification, modern design, and smart connectivity. These features make them ideal candidates for anyone looking for reliable, eco-friendly, and user-centric climate control solutions.