Mitsubishi Electric MSZ-FB25VA Manual de servicio

CONTENTS1. TECHNICAL CHANGES ··································· 32. PART NAMES AND FUNCTIONS ····················· 43. SPECIFICATION ················

108-3. AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan spee

11ON TIMER buttonCLOCK SET buttonTIME SET buttonsFORWARD buttonBACKWARD buttonOFF TIMER buttonRESET buttonVANE CONTROL buttonWIDE VANE button(Vertical

129-1. COOL ( ) OPERATION(1) Press OPERATE/STOP (ON/OFF) button. POWER lamp of the indoor unit turns on with a beep tone.(2) Select COOL mode with OP

9-5. AUTO VANE OPERATION1. Horizontal vane(1) Vane motor driveThese models are equipped with a stepping motor for the horizontal vane. The rotating di

(7) SWING ( ) modeBy selecting SWING mode with VANE CONTROL button, the horizontal vane swings vertically. (8) Cold air prevention in HEAT operationTh

159-6. i-see CONTROL OPERATIONThe sensors constantly measure the room and floor/wall temperatures to automatically adjust to the set temperature by es

16Indoor unit installation location and air-conditioning area•Be sure to set the slide switch inside the remote controller to an appropriate position

Operation and operating rangei-see sensor moves 30 degrees from the center in both right and left side.i-see Sensor operates as follows in accordance

189-10. TIMER OPERATION1. How to set the time(1) Check that the current time is set correctly.NOTE: Timer operation will not work without setting the

19EMERGENCY OPERATION switch (E.O.SW)9-11. EMERGENCY/TEST OPERATIONIn case of test run operation or emergency operation, use EMERGENCY OPERATION switc

22Revision A: • MSZ-FB50VA - A1 has been added.Revision B:• MSZ-FB•VA- A2 has been added.Revision C:• Some descriptions have been modified. (The des

20Insert the negative pole of the batteries first. Check if the polarity of the batteries is correct.NOTE: 1. If RESET button is not pressed, the remo

21Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though LED indication listed on the tro

222. Flow chart of PLASMA operation failure mode recall function2.Blinking pattern when plasma unit is abnormal:ONOFFBeepsRepeated cycleRepeated cycle

235. PLASMA operation failure mode tablePOWER lamp Abnormal point(Failure mode)Condition Correspondence1-time fl ash PLASMA power supply control PLASMA

2410-3. INSTRUCTION OF TROUBLESHOOTINGIndoor unit oper-ates.Outdoor unit does not operate.If blinking of OPERATION INDI-CATOR lamp cannot be checked,

2510-4. TROUBLESHOOTING CHECK TABLEBefore taking measures, make sure that the symptom reappears for accurate troubleshooting.When the indoor unit has

26 L AREA R POWER CLEAN PLASMA No. Abnormal pointOperation indicator lamp Symptom Condition Correspondence1Attachment of the hori-zontal va

2710-5. TROUBLE CRITERION OF MAIN PARTSMSZ-FB25VA MSZ-FB35VA MSZ-FB50VAPart name Check method and criterion Figure Room temperature ther-mistor (RT

28 A Check of indoor fan motor10-6. TROUBLESHOOTING FLOWThe indoor fan motor error has occurred, and the indoor fan does not operate.Turn OFF the pow

29 B Check of remote controller and indoor electronic control P.C. board Check if the remote controller is exclusive for this air conditioner.Does th

3MSZ-FB25VA -A1MSZ-FB35VA -A1MSZ-FB50VA -A1 1. New modelTECHNICAL CHANGES1MSZ-FB25VA -A1 → MSZ-FB25VA -A2MSZ-FB35VA -A1 → MSZ-FB35VA -A2MSZ-FB50VA -A1

30 C Check of indoor electronic control P.C. board and indoor fan motorTurn OFF the power supply.Remove indoor fan motor connector CN211, vane motor

31 D How to check miswiring and serial signal errorTurn OFF the power supply.Is there rated voltage in the power supply?YesNoTurn ON the power supply

32 Check of installation of the horizontal vaneE F Check of PLASMA operationIs the stopper of the horizontal vane locked to the indoor unit corr

33 G Electromagnetic noise enters into TV sets or radiosYesIs the unit earthed?NoEarth the unit.YesIs the distance between the antennas and the indoo

3410-7. TEST POINT DIAGRAM AND VOLTAGEMSZ-FB25VA MSZ-FB35VA MSZ-FB50VA1. Indoor electronic control P.C. board.Room temperature thermistor (RT11)Indo

352. Power monitor receiver P.C. boardDC 2.5 V during PLASMA DEODORIZING operationDC 12.5 V during PLASMA DEODORIZING operationGNDCN14. Plasma power P

36MSZ-FB25VA MSZ-FB35VA MSZ-FB50VANOTE: Turn OFF power supply before disassembling.OPERATING PROCEDURE PHOTOS1. Removing the panel(1) Hold both side

37OPERATING PROCEDURE PHOTOS2. Removing the electronic control P.C. board, the power monitor receiver P.C. board, i-see Sensor, SW P.C. board and the

38OPERATING PROCEDURE PHOTOS3. Removing the electrical box(1) Remove the panel (refer to 1.) and the corner box.(2) Remove the indoor/outdoor connecti

39OPERATING PROCEDURE PHOTOS6. Removing the horizontal vane motor(1) Remove the nozzle assembly. (Refer to 4.)(2) Remove the screws of the horizontal

4ACCESSORIESInstallation plate 1Installation plate fi xing screw 4 × 25 mm 5Remote controller holder 1Fixing screw for 3.5 × 1.6 mm (Black) 2Battery (

© Copyright 2008 MITSUBISHI ELECTRIC CORPORATIONDistributed in Mar. 2014. No. OBH503 REVISED EDITION-CDistributed in Dec. 2008. No. OBH503 REVISED EDI

5Indoor model MSZ-FB25VA MSZ-FB35VAMSZ-FB50VAPower supplySingle phase 230 V, 50 HzElectrical dataPower input 1CoolingW26 2860Heating 31 33Running cu

6MSZ-FB25VAINDOOR UNITWALLMICROPHONE0.8 m1 m90807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSU

7225 225646415515534554330 6942211.53253231.541212.52544369743859729521.55655 556881007857986.547Wall hole ø6511 X 26 Oblong hole11 X 20 Oblong holeIn

8MSZ-FB25VA MSZ-FB35VAIndoorheatexchangerFlared connectionRoom temperaturethermistorRT11Flared connectionRefrigerant pipe 9.52(with heat insulator

98-1. TIMER SHORT MODE For service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board. The time will be