Toshiba RAS-13UAV-E2, RAS-13UKV-E2 service manual Symptom, Cause

Page 72

FILE NO. SVM-03008

10-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

1.Symptom

•Outdoor fan motor does not rotate.

•Outdoor fan motor stops within several ten seconds though it starts rotating.

•Outdoor fan motor rotates or does not rotate according to the position where the fan stopped., etc.

Remote controller check code “02 : Outdoor block, 1A : Outdoor fan drive system error”

2.Cause

The following causes are considered when the outdoor fan motor does not normally rotate.

1)Mechanical lock of the outdoor fan motor

2)Winding failure of the outdoor fan motor

3)Position-detect circuit failure inside of the outdoor fan motor

or

4)Motor drive circuit failure of the outdoor P.C. board

3.How to simply judge whether outdoor fan motor is good or bad

Turn OFF the breaker.

Disconnect two connectors (CN300 and CN301)

of the outdoor fan motor from the inverter.

Does the fan rotate without trouble

when rotating it with hands?

 

 

 

YES

 

 

If the resistance value between

1

(Red lead)

−

2

(White lead)

2

(White lead)

−

3

(Black lead)

3

(Black lead)

−

1

(Red lead)

of the connector

(CN300 : Motor winding) is 17 to 25Ω , it is normal.

YES

If the resistance value between

1 (Yellow lead) − 4 (Pink lead) of the connector

(CN301 : Motor position detection) is 5k to 20kΩ , it is normal.

YES

Fan motor is normal.

(Outdoor P.C. board error)

NO

CN300

NO

NO

CN301

Fan motor error

NOTE :

However, GND circuit error inside of the motor may be accepted in some cases when the above check is performed.

When the fan motor does not become normal even if P.C. board is replaced, replace the outdoor fan motor.

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Contents AIR Conditioner Contents HOW to Replace the Main Parts Specifications SpecificationsOperation Characteristic Curve Capacity Variation Ratio According to TemperatureSafety During Installation/Servicing Refrigerant Piping InstallationRefrigerant R410A Piping materials and joints used1 Thicknesses of annealed copper pipes Thickness mmOuter diameter mm R410A R22 Processing of piping materialsFlare tool for R410A Conventional flare tool Clutch type Wing nut typeWidth Diameter·m kgf·cm ·m kgf·mTools Required toolsGeneral tools Conventional tools can be used 1 Configuration of refrigerant charging Recharging of RefrigerantBrazing of Pipes Characteristics required for flux Types of flux Noncorrosive fluxActivated flux BrazingIndoor Unit 215Outdoor Unit Cover PVWiring Diagram 1 Simple Check for Failure DiagnosisCheck Item Diagnosis Result BRW Specification of Electrical Parts SpecificationsParts name RatingRefrigerant Cycle Diagram Refrigerant Cycle DiagramOperation Data Control Block Diagram RaysOutdoor Unit Inverter Assembly MCC813P.C.BOperation Description Outlined of Air Conditioner ControlPower factor improvement control Capacity control1 Compressor revolution range Operation Model Revolution rpsPrevent-freezing control 5. P.M.V. Pulse Modulating ValveLouver control Indoor fan control DC fan motorOutdoor fan control DC fan motor Model nameCompressor revolution rps From Description of Operation Circuit Cooling capacity controlLimit for maximum compressor motor speed By indoor fan speedBasic control Heating operationStarting and in stability Stability Heating capacity controlHigh-temp. release control Defrost controlAutomatic operation TimeTemporary Operation Temporary button ControlTemporary auto operation Temporary cooling operationHow to set auto restart function When the unit is on standby Not operating OperationWhen the unit is in operation Operation Auto Restart FunctionFilter Check Lamp Remote Control and its Functions Mode display Temperature displayTimer and clock time display Hi-POWER displayFile NO. SVM-03008 Installation Procedure Safety CautionsTo Disconnect the Appliance from the Main Power Supply File NO. SVM-03008 Installation Diagram of Indoor and Outdoor Units AttachOptional installation parts Part Parts name ’ty Code Fixing bolt arrangement of outdoor unitAccessory and installation parts OthersName OptionNew tools for R410A Applicable to R22 model Changes Installation place Remote controllerMounting the installation plate Cutting a holeWhen the installation plate is directly mounted on the wall Electrical workHow to remove the Drains Cap Die-cutting Front panel slitChanging drain hose How to fix the Drains Cap Case of right or left pipingLeft-hand connection with piping Case of bottom right or bottom left pipingIndoor unit fixing Drainage Run the drain hose sloped downwardsRefrigerant piping connection Flaring Projection margin in flaring a Unit mmR410A Conventional Copper pipe Tool used Copper pipe Tightening connectionUsing a vacuum pump Outer dia Tightening torque Copper pipeShaping pipes EvacuatingPacked valve handling precautions Wiring connectionStripping length of connection cable Auto restart setting How to set the auto restartGas leak test Test operationHOW to Diagnose the Trouble First ConfirmationPrimary Judgment Operation which is not a trouble Program operationOperation of air conditioner Description Indoorindication Judgment by Flashing LED of Indoor UnitSelf-Diagnosis by Remote Control Check Code How to use remote control in service modeCause of operation Short circuit. Replace Judgment of Trouble by Every Symptom Check ItemTurn on power supply Only indoor fan motor does not operate Primary check YESInspection procedure Troubleshooting for remote control Pipe clogging Check Code 1C Miswiring in indoor/outdoor units and 1E Check procedureHow to Diagnose Trouble in Outdoor Unit AGE on P.C. boardHow to Check Simply the Main Parts Diagnosis/Process flowchart Contents SummaryInspection procedures Main P.C. board partCheck procedures Procedure Check points Symptom Causes OPERATION, TIMER, PRE. DEFSensor characteristic table 10-8-2. P.C. board layoutBottom View Indoor unit Other parts Part name Checking procedure Outdoor unit Part name Checking procedureChecking Method for Each Part Part name Checking procedure Diode check Igbt checkSymptom CauseHOW to Replace the Main Parts Part name Procedures RemarksFigure below For position of the fan motor connector Microcomputer Detachment Requirement Connector is one Assembly to other parts Fan motor Perform work of item 1 of 1 Set take-out part of the lead wire of coil to Part name Board layout MCC-813 Exploded Views and Parts List Indoor Unit E-Parts AssyFront Panel Assy Cabinet, Front, Assy Outdoor Unit E-Parts Assy Toshiba Carrier Corporation

RAS-13UAV-E2, RAS-13UKV-E2 specifications

The Toshiba RAS-13UKV-E2 and RAS-13UAV-E2 air conditioning units represent a significant step forward in both comfort and energy efficiency. Designed for residential and light commercial use, these models are packed with features that cater to diverse climate control needs while adhering to modern standards of sustainability.

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