Manuals / Mitsumi electronic / Household Appliance / Air Conditioner

Mitsumi electronic PKA-A18HA4, PKA-A12HA4 service manual

Models: PKA-A18HA4 PKA-A12HA4

1 36

Download 36 pages 12.47 Kb

Page 35

Image 35

Page 35

Image 35

Mitsumi electronic PKA-A18HA4, PKA-A12HA4 service manual

Contents

SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS Indoor unit Model names Service RefCONTENTS NovemberRadio frequency interface REFERENCE MANUALRemote controller Optional parts IR wireless remote controller2-2.CAUTIONS RELATED TO NEW REFRIGERANT 2 SAFETY PRECAUTION2-1.ALWAYS OBSERVE FOR SAFETY 1Cautions for serviceIndoor unit 3 Service tools3 PART NAMES AND FUNCTIONS Unit GravimeterTEMP Wired remote controller OptionDisplay Section Operation SectionTIMER CONTROL buttons IR wireless remote controller OptionTemperature setting display TIMER displayPKA-A12HA4 4 SPECIFICATIONSService Ref Service RefNC-60 5 NOISE CRITERION CURVESPKA-A12HA4 PKA-A18HA4 NC-70Unit inch mm 6 OUTLINES AND DIMENSIONSPKA-A12HA4 PKA-A18HA4 PKA-A18HA4 7 WIRING DIAGRAMPKA-A12HA4 Heat exchanger 8 REFRIGERANT SYSTEM DIAGRAMPKA-A12HA4 PKA-A18HA4 9-1.TROUBLESHOOTING 9 TROUBLESHOOTINGIn case of trouble during operation IR wireless remote controllerProcedure Wired remote controllerOutput pattern B On IR wireless remote controller Pipe temperature thermistor/Liquid 9-3. SELF-DIAGNOSISACTION TABLEError Code Room temperature thermistor TH1Countermeasure Error Code Abnormal point and detection methodPipe temperature CauseCause Pipe temperature thermistorRemote controller transmission errorE0/signal receiving errorE4error Transmitting error Remote controller transmissionerrorE3/signal receiving errorE5 error Signal receiving errorCountermeasure 9-4.TROUBLESHOOTING BY INFERIOR PHENOMENAPhenomena Cause9-5.EMERGENCY OPERATION 9-6-1.Thermistor 9-6.HOW TO CHECK THE PARTS PKA-A12HA4 PKA-A18HA4the fuse Sensor signal checkIs the voltage normal? ReplaceIndoor controller board 9-7.TEST POINT DIAGRAMPKA-A12HA4 PKA-A18HA4 9-8.FUNCTIONS OF DIP SWITCH AND JUMPER WIRE 22nd stage cut-infunction Outline of functions 10 SPECIAL FUNCTION10-1-1.Operation System constraintSystem constraint 1 Request Code ListOutline of functions 10-2. BACK-UPHEATING FUNCTION CN152Corner hole DISASSEMBLY PROCEDUREOPERATION PROCEDURE PHOTOS & ILLUSTRATIONS3. REMOVING THE INDOOR CONTROLLER BOARD PHOTOSOPERATION PROCEDURE AND IR WIRELESS CONTROLLER BOARDPHOTOS OPERATION PROCEDURE8. REMOVING THE LIQUID PIPE THERMISTOR AND OPERATION PROCEDURE10. REMOVING THE ROOM TEMPERATURE THERMISTOR PHOTOSPage Page Page Made in Japan New publication, effective NovDistributed in Nov. 2010 No.OCH483