Mitsubishi Electronics MSZ-FA25VA, MSZ-FA35VA service manual Check of auto front panel

Page 28

Indoor unit and outdoor unit do not operate.

H Check of auto front panel

Turn the remote controller ON.

Does the front panel automatically open? (Does it start to move?)

Yes

No

Is the connector of the front panel driving motor unit or the indoor electric control P.C. board unplugged?

Yes

Plug in the connector and check from the start again.

No

Is the resistance value between	No
Is the resistance value between
terminals of the front panel driving
motor unit normal?

Is the front panel held 10mm or more upper than the level line of the nozzle top?

Yes

Front panel is normal.

No

Replace the front panel driving motor unit.

Yes

Replace the indoor electric control P.C. board.

10 mm or more

Z-Z side view

Replace the front panel driving motor unit.

28

Image 28

Contents Contents MSZ-FA25VA E1 MSZ-FA35VA E1Generalized stepping motor Technical ChangesFront panel opening/closing output gear Wash reset switch Open Closed Receiving section Part Names and FunctionsIndoor Unit MSZ-FA25VA MSZ-FA35VA See control operationMSZ-FA25VA E1 MSZ-FA35VA E1 Accessories Remote ControllerSpecifications and rating conditions of main electric parts SpecificationWhen outdoor unit is MXZ type MSZ-FA25VA E1 Noise Criteria CurvesMSZ-FA35VA E1 Outlines and Dimensions MSZ-FA25VA E1 MSZ-FA35VA E1Indoor Unit Unit mmWiring Diagram Refrigerant System DiagramMSZ-FA25VA E1 Indoor Unit MSZ-FA35VA E1 Indoor UnitService Functions How to modify the remote controller P.C. boardRemote controller model KM05A OperationRemote controller Troubleshooting Install RemoveInformation for Multi System AIR Conditioner Outdoor Unit MXZ seriesFailure mode recall function OFFTo identify the error.Refer to 9-6.For G Indoor unit failure mode table Plasma DeodorizingPlasma AIR Purifying OFFInstruction of troubleshooting StartTroubleshooting check table · Flashing of Power lamp indicates abnormalitiesAIR 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 How to check mis-wiring and serial signal error LEDCheck of installation of the horizontal vane Safety Deviceplasma Unit Plasma Deodorizing 0V?Continuously flash? AIR Purifying 0V?Check of auto front panel Indoor unit and outdoor unit do not operateElectromagnetic noise enters into TV sets or radios YesTest point diagram and voltage Power monitor receiver P.C. boardPlasma power P.C. board Indoor electronic control P.C. boardDisassembly Instructions Removing the panel PhotoOperating Procedure Photos Removing the electrical boxRemoving the horizontal vane motor unit Photo Removing the vertical vane motor unit PhotoRemoving the indoor fan motor and the line flow Photo FanRemoving the plasma power P.C. board Photo Parts List Accessory and Remote ControllerSafety Plasma Indoor Unit Electrical Parts and Functional PartsIndoor Unit Heat Exchanger Motor Receiver P.C Board HolderSymbol Qty/unit Part name Wiring Diagram E02509 504Optional Parts Deodorizing Ceramic FilterPage Specifications subject to change without notice