Mitsubishi Electronics Official Service Manual for Mitsubishi MSZ-FA25VA & MSZ-FA35VA Models

Page 1
and MXZ-4A80VA-E1 ,

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

No. OB371

SERVICE MANUAL

Wireless type

Models

MSZ-FA25VA - E1 MSZ-FA35VA - E1

(WH)

(WH)

CONTENTS

Indication of model name MSZ-FA25VA - E1 MSZ-FA35VA - E1

1.TECHNICAL CHANGES ··············

2.PART NAMES AND FUNCTIONS··········

3.SPECIFICATION··················

4.NOISE CRITERIA CURVES ·············

5.OUTLINES AND DIMENSIONS ···········

6.WIRING DIAGRAM ················

7.REFRIGERANT SYSTEM DIAGRAM ········

8.SERVICE FUNCTIONS ··············

9.TROUBLESHOOTING···············

10.DISASSEMBLY INSTRUCTIONS··········

11.PARTS LIST···················

12.OPTIONAL PARTS················

NOTE:

This service manual describes technical data of the indoor units.

•As for outdoor units MUZ-FA25VA- E1 , MUZ-FA35VA- E1 , MUZ-FA25VAH- E1 MUZ-FA35VAH- E1 , refer to service manual OB372.

•As for outdoor units MXZ-3A54VA- E1 , MXZ-4A71VA- E1 refer to service manual OB377.

and

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Contents MSZ-FA25VA E1 MSZ-FA35VA E1 ContentsGeneralized stepping motor Technical ChangesFront panel opening/closing output gear Part Names and Functions Wash reset switch Open Closed Receiving sectionIndoor Unit MSZ-FA25VA MSZ-FA35VA See control operationRemote Controller MSZ-FA25VA E1 MSZ-FA35VA E1 AccessoriesSpecifications and rating conditions of main electric parts SpecificationWhen outdoor unit is MXZ type MSZ-FA25VA E1 Noise Criteria CurvesMSZ-FA35VA E1 MSZ-FA25VA E1 MSZ-FA35VA E1 Outlines and DimensionsIndoor Unit Unit mmRefrigerant System Diagram Wiring DiagramMSZ-FA25VA E1 Indoor Unit MSZ-FA35VA E1 Indoor UnitHow to modify the remote controller P.C. board Service FunctionsRemote controller model KM05A OperationRemote controller Troubleshooting Remove InstallOutdoor Unit MXZ series Information for Multi System AIR ConditionerOFF Failure mode recall functionTo identify the error.Refer to 9-6.For G Plasma Deodorizing Indoor unit failure mode tablePlasma AIR Purifying OFFStart Instruction of troubleshooting· Flashing of Power lamp indicates abnormalities Troubleshooting check tableAIR PlasmaPurifying Trouble criterion of main parts When Power lamp flashes 3-time Indoor fan does not operate Troubleshooting flowCheck of indoor fan motor Check of remote controller and receiver P.C. board Indoor electronic control P.C.Board LED How to check mis-wiring and serial signal errorCheck of installation of the horizontal vane Plasma Deodorizing 0V? Safety Deviceplasma UnitAIR Purifying 0V? Continuously flash?Indoor unit and outdoor unit do not operate Check of auto front panelYes Electromagnetic noise enters into TV sets or radiosPower monitor receiver P.C. board Test point diagram and voltagePlasma power P.C. board Indoor electronic control P.C. boardRemoving the panel Photo Disassembly InstructionsRemoving the electrical box Operating Procedure PhotosRemoving the vertical vane motor unit Photo Removing the horizontal vane motor unit PhotoRemoving the indoor fan motor and the line flow Photo FanRemoving the plasma power P.C. board Photo Accessory and Remote Controller Parts ListIndoor Unit Electrical Parts and Functional Parts Safety PlasmaIndoor Unit Heat Exchanger Motor Receiver P.C Board HolderDiagram E02 Symbol Qty/unit Part name Wiring509 504Deodorizing Ceramic Filter Optional PartsPage Specifications subject to change without notice