Toshiba RAS-13YAV-E, RAS-13YKV-E, RAS-10YKV-E Only the indoor fan does not operate, Yes

Page 47

(3) Only the indoor fan does not operate

Turn off the power supply.

Turn on the power supply.

	Does the fan		NO
	stop in no operating		NO
	stop in no operating
	status?
		YES
		YES

Control board is defective.

Operation

Check Item

Considerable main cause

Measures

Item by symptom

Replace the board.

Start the operation with low fan setting in cool operation.

Is the DC 35V

Turn off the power supply,

NO

measured between

NO

Does the fan rotate?

1

(red lead wire) and

and turn it on after

2

(black lead wire)

removing the motor from

YES

of the motor connector

the board.

(CN10) ?

YES

Turn off the power supply.

Change the setting of

Does the cross NO

Repair the

cooling to high fan.

flow fan rotate

bearing of the

normally?

cross flow fan.

YES

Turn on the power supply.

Does the fan speed	NO Operation
become higher?		stops
YES

Is the rotation signal

(DC+5V 0V) output between

4(blue lead wire) and 2 (black lead wire) of the motor connector (CN10) when rotating the cross flow fan by hand in no operating

status ? (2 pulses/one turn)

YES

Is the voltage of

DC35V measured NO between 1 and 2 GND of

the motor connector (CN10) ?

YES

NO

Replace the board.


					Replace the				Replace the
	Normal				Replace the				Replace the
	Normal				control board.				fan motor.

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Image 47

Contents AIR-CONDITIONER Contents RAS-10YKV-E/RAS-10YAV-E SpecificationsSpecifications RAS-13YKV-E RAS-13YKV-E/RAS-13YAV-ECooling Operation Characteristic CurveCapacity Variation Ratio According to Temperature Cooling HeatingPiping Materials and Joints Used Safety During Installation/ServicingRefrigerant Piping Installation Refrigerant R410ANominal diameter Processing of Piping Materials1 Thicknesses of annealed copper pipes Thickness mm Outer diameter mm R410A R22Outer Thickness Dimension mm 3 Dimensions related to flare processing for R410A Outer4 Dimensions related to flare processing for R22 Outer 5 Flare and flare nut dimensions for R410AWrenches available on the market Nm kgfcmGeneral tools Conventional tools can be used R410A air conditioner Conventional air InstallationTools Required ToolsRecharging of Refrigerant 1 Configuration of refrigerant chargingFlux Brazing of PipesMaterials for Brazing Never use gas other than Nitrogen gas BrazingRAS-10YKV-E, RAS-13YKV-E Construction ViewsIndoor Unit RAS-10YAV-E RAS-13YAV-E Outdoor UnitCheck items Diagnosis result Wiring Diagram1 Simple check points for diagnosing faults V. Pulse Modulating Valve RAS-10YAV-E, RAS-13YAV-EParts name Model name Rating Specifications of Electrical PartsParts name Type Specifications RAS-10YKV-E/RAS-10YAV-E RAS-13YKV-E/RAS-13YAV-E Refrigerant Cycle DiagramRefrigerant Cycle Diagram Heating Operation DataCooling Remote Controller Control Block DiagramMCC808 P.C.B AssemblyRAS Outline of Air Conditioner Control Operation Description1 Compressor revolution range Power Factor Improvement ControlCapacity Control Current Release ControlIndoor Fan Control DC Fan Motor Prevent-Freezing Control5. P. M. V. Pulse Modulating Valve Louver ControlHeat Description of Operation CircuitOutdoor Fan Control DC Fan Motor COOL, DRYCurrent release control Outdoor temperature release controlPrevent-freezing control Louver control RpsECONO. operation control 5 Setting of air flowCold draft preventing control Heating OperationBasic control Starting and in stabilityDefrost control Temporary Cooling Operation Temporary OperationAutomatic Operation Temporary Auto OperationOperation Motion How to Set the Auto RestartAuto Restart Function Case of Power Failure during the Timer Operation How to Cancel the Auto RestartSTART/STOP button Remote ControllerParts Name of Remote Controller Name of Indications on Remote ControllerRemark per EMC Directive 89/336/EEC Installation ProcedureSafety Cautions Indoor Unit Optional Installation PartsElectrical Work Refrigerant Piping Connection Outdoor UnitFirst Confirmation HOW to Diagnose the TroubleConfirmation of Power Supply Confirmation of Power VoltageOperation of air conditioner Description Primary JudgmentOperation Which is not a Trouble Program Operation Check Block display Description for self-diagnosis Code Judgment by Flashing LED of Indoor UnitButton Self-Diagnosis by Remote Controller Check CodeOperation Control by Rated Frequency in Service Mode Self-DiagnosisBlock distinction Check outdoor heat exchanger temp Power is not turned on Does not operate entirely Judgment of Trouble by Every SymptomIndoor Unit Including Remote Controller Confirmation procedureYES Only the indoor fan does not operateCause How to examine whether remote controller is good or bad Outdoor unit does not operate Wiring Failure Interconnecting and Serial Signal WireCheck procedure Select phenomena described below Check procedure Check Code 1C Miswiring in indoor/outdoor units and 1EDiagnosis/Process flowchart Contents Summary How to Diagnose Trouble in Outdoor UnitSummarized Inner Diagnosis of Inverter Assembly Inspection procedures How to Check Simply the Main PartsHow to Check the P.C. Board Indoor Unit Operating precautionsProcedure Check point Symptom Causes Check proceduresBottom View Sensor characteristic table10-8-2. P.C. Board Layout Position Resistance value Part name Checking procedureIndoor Unit Other Parts Outdoor UnitCase that product is good Checking Method for Each PartSymptom How to Simply Judge Whether Outdoor Fan Motor is Good or BadTo assemble the front panel HOW to Replace the Main PartsPart name Procedure Remarks 11-1 Indoor UnitRemoving Louver motor Board layout MicrocomputerAttachment No. Part name Procedure RemarksDetachment Part Be careful to check the inverter becauseHigh-voltage circuit is incorporated in it BundledLead wires Propeller Flange nut is loosened by turning clockwise Perform work on a corrugated cardboard Pulse modulating valve has a roomSide and B room side. After mounting it Check that coil at B room side RedParts name Qty Remarks Part name Procedure RemarksMCC-808 Location Exploded Views and Parts ListPart Description Part Description 222 43T49023 Holder of Plate of EVA-SEAL 11, 13 12 24, 25 26, 27 12-3. P.C. Board Layout Toshiba Carrier Corporation Turn 208 10YKV-E 221 Cushion, Rubber Valve, 4-way To Sensor Ø6