Mitsubishi MSZ-A30YV Service Manual

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

10NOTE:• The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remotecontroller.• If main power

21StopperLock.LeftInsert this end first.11TROUBLESHOOTING93. Troubleshooting procedure1) First, check if the OPERATION INDICATOR lamp on the indoor un

12If PLASMA/WASH lamp on the indoor unit blinks, clean the filters as soon as possible. The lamp will start blinking whenaccumulated operating time ex

13INFORMATION FOR MULTI SYSTEM AIR CONDITIONER OUTDOOR UNIT : MXZ seriesMulti system air conditioner can connect two or more indoor units with one out

14Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though LED indication listed on the tro

152. Flow chart of PLASMA DEODORIZING/PLASMA AIR PURIFYING power failure mode recall functionOperational procedureNote1. Make sure to release the fail

164. Indoor unit failure mode table5. PLASMA DEODORIZING/PLASMA AIR PURIFYING power failure mode table 5-time flashWhen the voltage between CN1 3(+)a

17StartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from remote controller.OPERATION INDICATORl

18No.1356SymptomOperation indicator lampConditionCorrespondencePOWER lamp flashes.0.5-second ON0.5-second OFFMis-Wiringor serial signalOutdoor p

19LightedBlinkingNot lightedLightedBlinkingNot lightedLightedBlinkingNot lighted· Flashing of AREA lamp(left-hand side lamp) indicates abnormality.No.

21TECHNICAL CHANGESMSZ-A09YV - ➔ MSZ-FA25VA -MSZ-A12YV - ➔ MSZ-FA35VA -A1A1A1A1NOTE: Do not remove the vane motor from the motor unit.Do not disasse

209-5. Trouble criterion of main partsMSZ-FA25VA MSZ-FA35VAPart name FigureCheck method and criterionMeasure the resistance with a tester. Room temper

21Check of indoor fan motorAWhen POWER lamp flashes 3-time.Indoor fan does not operate.w If more than 12 seconds passes after EMERGENCY OPERATION swit

22Check of remote controller and receiver P.C. board BIndoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remot

23The unit does not operate with the remote controller.Also, POWER lamp does not light up by pressing EMERGENCY OPERATION switch.Check of indoor elect

24How to check mis-wiring and serial signal errorDIs there rated voltagein the power supply?Is there any mis-wiring, poor contact, or wire disconne

25Check of installation of the horizontal vaneEReplace the indoor electronic control P.C. board.Replace the interlock switch(Fan).Is the stopper of

26Check of PLASMA DEODORIZING powerFWhen PLASMA/WASH lamp flashes 2-time.When POWER lamp flashes 1 to 5 times while PLASMA DEODORIZING / PLASMA AIR PU

27Check of PLASMA AIR PURIFYING powerGWhen PLASMA/WASH lamp flashes 2-time.When POWER lamp flashes 1 to 5 times while PLASMA DEODORIZING / PLASMA AIR

28Check of auto front panelHIs the connectors for the front panel driving motor unit connected? (Motor side or P.C. board side)Front panel is normal.R

29Electromagnetic noise enters into TV sets or radiosIReplace or repair the antenna.Replace or repair the coaxial cable.NoNoNoYesYesNoNoYesYesYesIs t

3PART NAMES AND FUNCTIONS2INDOOR UNITMSZ-FA25VAMSZ-FA35VALine flow fanAir outletVertical vaneAir inletDisplay sectionFront panelPLASMA DEODORIZING fil

30Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)]Room temperature thermistor (RT11)Temperature (:)Resistance (k")MSZ-FA25VA MSZ-FA35VAIndoor el

31DISASSEMBLY INSTRUCTIONS10(1) Slide the sleeve and check if there is a locking lever or not.(2)The terminal with this connector has the  loc

322. Removing the electronic control P.C. board, thepower monitor receiver P.C. board, i-see Sensor,SW P.C. board and the terminal block(1) Remove t

33OPERATING PROCEDURE PHOTOSPhoto 8Photo 10Screws of theleft side of theheat exchanger5. Removing the vertical vane motor unit(1) Remove the horizonta

34OPERATING PROCEDURE PHOTOSPhoto 13Photo 11Photo 12Front panel driving motorScrew of the plasmaelement holder7. Removing the plasma power P.C. board(

35PARTS LIST11MSZ-FA25VAMSZ-FA35VA11-1. INDOOR UNIT STRUCTURAL PARTSNo.Part No.Part nameRemarksSymbolin WiringDiagramQ'ty/unit12345678

3611-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTSMSZ-FA25VAMSZ-FA35VA42539163311-4. INDOOR UNIT HEAT EXCHANGER10871811121314151617181918212420

37BEARING MOUNTSLEEVE BEARINGDRAIN HOSENOZZLE ASSEMBLY VANE MOTOR UNIT (HORIZONTAL)INTERLOCK SWITCH(FAN)VANE MOTOR UNIT (VERTICAL)HORIZONTAL VA

3812 OPTIONAL PARTS12-1. DEODORIZING CERAMIC FILTERReplacement of the deodorizing ceramic filter(about once every 6 years)Deodorizing ceramic filter i

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4ACCESSORIES1234567Installation plateInstallation plate fixing screw 4 o 25 mmRemote controller holderFixing screw for 3 3.5 o 1.6 mm (Black)Batte

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPANCCCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistributed in Ja

MSZ-FA25VA MSZ-FA35VAIndoor modelFunctionPower supplySingle phase230V,50Hz100.2533570.25RC0J40-EB or RC0J30-CC780O298O1981044236/

64NOISE CRITERIA CURVES90807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, 0dB=20µPaBA

7OUTLINES AND DIMENSIONS5MSZ-FA25VAUnit : mmINDOOR UNIT780155 155335 32041.5 21542.52143 287.570555555 225 22529890106 or more7100198 553.5 102624.519

86WIRING DIAGRAMREFRIGERANT SYSTEM DIAGRAM7MSZ-FA25VAIndoorheatexchangerFlared connectionRoom temperaturethermistorRT11Indoor coil thermistorRT1

9SERVICE FUNCTIONS88-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATIONA maximum of 4 indoor units with wireless remote controllers can be used in a