Mitsubishi MSZ-A30YV Service Manual

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································22. PART NAMES AND FUNCTIONS······················33. SPECIFICATION····

108When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fan speed arememorized by the indoor el

11How to release “AUTO RESTART FUNCTION”1Turn OFF the main power for the unit.2Pull out the electronic control P.C. board, the receiver P.C.board and

TROUBLESHOOTING1299-1. Cautions on troubleshooting1. Before troubleshooting, check the following:(1) Check the power supply voltage.(2) Check the indo

139-2. Failure mode recall function1. Flow chart of failure mode recall function for the indoor/outdoor unit. Operational procedureYes(Blinks)No(OFF)Y

142. Indoor unit failure mode tableNOTE : Blinking patterns of this mode differ from the ones of Troubleshooting check table (9-4.). 12-time flash2.5-

15StartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from remote controller.OPERATION INDICATORl

16No.1256SymptomOperation indicator lamp ConditionCorrespondenceLeft lamp flashes.0.5-second ON0.5-second OFFMis-Wiringor serial signalOutdoor power s

17LightedBlinkingNot LightedNo.SymptomOperation indicator lamp ConditionCorrespondenceAbnormal point1MXZ typeOperation mode settingOutdoor unit operat

18Check of indoor fan motorAWhen OPERATION INDICATOR lamp flashes 3-time.Indoor fan does not operate.w If more than 12 seconds passes after EMERGENCY

19Check of remote controller and receiver P.C. board BIndoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remot

21MSZ-A18YV - ➔ MSZ-GA50VA -MSZ-A24YV - ➔ MSZ-GA60VA -MSZ-A26YV - ➔ MSZ-GA71VA -MSZ-A30YV - ➔ MSZ-GA80VA -A1A1A1A1A1A1A1A11. Indication of capacit

20The unit does not operate with the remote controller.Also, OPERATION INDICATOR lamp does not light up by pressing EMERGENCY OPERATION switch.Check o

21Is there rated voltage in the power supply?Is there any mis-wiring, poor contact, or wire disconnection of the indoor/outdoor connecting wire?W1. M

22Electromagnetic noise enters into TV sets or radiosEReplace or repair the antenna.Replace or repair the coaxial cable.NoNoNoYesYesNoNoYesYesYesIs th

236(+)0V DC or 15V DCIndoor coil thermistor [RT12 (MAIN), RT13 (SUB)]Room temperature thermistor (RT11)Temperature (:)Resistance (k")MSZ-GA50VA M

24DISASSEMBLY INSTRUCTIONS10MSZ-GA50VA MSZ-GA60VA MSZ-GA71VA MSZ-GA80VA(1) Slide the sleeve and check if there is a locking lever or not. (2) The ter

25OPERATING PROCEDURE PHOTOSPhoto 4Photo 6Vane motorsPhoto 33. Removing the electrical box(1) Remove the front panel. (Refer to 1.)(2) Remove the elec

26PARTS LIST (non-RoHS compliant)11MSZ-GA50VAMSZ-GA60VAMSZ-GA71VA11-1. INDOOR UNIT STRUCTURAL PARTSMSZ-GA60VA -A150VA -A171VA -A1E02 527 970E02 685

27E02 527 302E02 408 509E02 001 504E02 408 702E02 A43 235E02 685 040E02 685 041E02 A49 382E02 661 385E02 527 034E02 918 300E02 44

28Model Part No.MAC-2300FTMSZ-GA50VA MSZ-GA60VAMSZ-GA71VAAir cleaning filter (Anti-allergy enzyme filter:blue bellows type)11-5. AIR CLEANING FILTER (

29RoHS PARTS LIST (RoHS compliant)12MSZ-GA50VAMSZ-GA60VAMSZ-GA71VAMSZ-GA80VA12-1. INDOOR UNIT STRUCTURAL PARTSMSZ-GA60VA -A150VA -A171VA -A180VA -A1E1

3PART NAMES AND FUNCTIONS2Grille(When the grille is opened)Remote controllerOperation sectionDisplay sectionEmergency operation switchOperation indica

30RoHS PARTS LIST (RoHS compliant)E12 527 302E12 408 509E12 001 504E12 408 702E12 A43 235E12 685 040E12 685 041E12 A49 382E12 661 385E

31Model Part No.MAC-2300FTMSZ-GA50VA MSZ-GA60VAMSZ-GA71VAMSZ-GA80VAAir cleaning filter (Anti-allergy enzyme filter:blue bellows type)12-5. AIR CLEANIN

New publication, effective Jun. 2006Specifications subject to change without notice.CCCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistribute

4REMOTE CONTROLLERMSZ-GA50VAMSZ-GA60VAMSZ-GA71VAMSZ-GA80VAON/OFFTOOCOOLTOOWARMLONGOpen the front lid.Signal transmitting sectionOperation display sect

5SPECIFICATION3Indoor modelFunctionPower supplyAir flow(High/Med./Low) Power outletRunning current ✽1Power input ✽1Power factor ✽1Fan motor current ✽1

6NOISE CRITERIA CURVES490807060504030201063 125 250 500 1000 2000 4000 8000OCTAVE BAND SOUND PRESSURE LEVEL, 0dB=20µPaBAND CENTER FREQUENCIES, HzAPPRO

7OUTLINES AND DIMENSIONS52581591958477.5315255.5472.59817398 173414.5 414.552537915610681100325Air outAir inInsulation [28Drain hose [16(Connected par

WIRING DIAGRAM86MSZ-GA50VAMSZ-GA60VAMSZ-GA71VAMSZ-GA80VAMV2 MV255152CN3CN101BLUCN2116531RT12RT11MFBLKYLW112CNCN111WHTREDRT132451234GRNS1T111CN15112CN2

9REFRIGERANT SYSTEM DIAGRAM7MSZ-GA71VAMSZ-GA80VAIndoorheatexchangerFlared connectionRoom temperaturethermistorRT11Indoor coil thermistorRT13(sub)Flare