Toshiba RAS-13UKV-E2, RAS-13UAV-E2 service manual Judgment of Trouble by Every Symptom, Check Item

Page 59

FILE NO. SVM-03008

10-5. Judgment of Trouble by Every Symptom

10-5-1. Indoor unit (Including remote contro)

(1) Power is not turned on (Does not operate entirely)

<Primary check>

1.Is the supply voltage normal?

2.Is the normal voltage provided to the outdoor unit?

3.Is the crossover cable connected properly?

4.Is the fuse (F01) blown?

				Operation
				Check Item
				Considerable principle cause
	Turn off power supply once, and			Measures
	5 second later, turn it on again.			Measures
	5 second later, turn it on again.
	NO			Item by symptoms
	Is OPERATION lamp flashing?
	YES
	Is it possible to turn on	NO	Does transmission mark	NO
	power supply by pushing	NO	on remote control flash	NO
	power supply by pushing		on remote control flash	Remote control is defective.
	[START/STOP] button		normally, and is its signal	Remote control is defective.
	[START/STOP] button		normally, and is its signal
	on remote control?		transmitted properly?

YES

YES

Refer to (5)

Troubleshooting

Unit operates normally.

for remote control .

Does fan

Is fuse (F01)

YES

YES

Parts (R01, R04, DB01, C01,

motor connector

of indoor control

C03, IC01 and T01) are defective.

between 1 and 2

board blown?

short-circuit?

NO

NO

Is voltage

NO

(DC12 V or 5 V)

YES

indicated on rear of

Microcomputer

Replace main

indoor control

is defective.

P.C. board

board normal?

Is DC310-340 V

NO

Refer to <Primary check>

supplied to

or this problem is one step

primary side of

short of power P.C. board block.

transfer switch?

YES

Are DC15 V, 12 V

NO

Are DC15 V, 12 V

NO

Transfer swith,

Turn off breaker once

IC (IC01) for

and 7 V supplied to

and 7 V supplied to

secondary side of

and turn it on again

secondary side of

power supply or

after removing motor.

fan motor is

transfer switch?

transfeor switch?

defective.

YES

YES

Replace motor.

•Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of damage of the motor.

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Image 59

Contents AIR Conditioner Contents HOW to Replace the Main Parts Specifications SpecificationsCapacity Variation Ratio According to Temperature Operation Characteristic CurvePiping materials and joints used Safety During Installation/ServicingRefrigerant Piping Installation Refrigerant R410AProcessing of piping materials 1 Thicknesses of annealed copper pipesThickness mm Outer diameter mm R410A R22Diameter Flare tool for R410A Conventional flare toolClutch type Wing nut type Width·m kgf·m ·m kgf·cmGeneral tools Conventional tools can be used ToolsRequired tools Recharging of Refrigerant 1 Configuration of refrigerant chargingBrazing of Pipes Brazing Characteristics required for fluxTypes of flux Noncorrosive flux Activated flux215 Indoor UnitCover PV Outdoor UnitCheck Item Diagnosis Result Wiring Diagram1 Simple Check for Failure Diagnosis BRW Rating Specification of Electrical PartsSpecifications Parts nameRefrigerant Cycle Diagram Refrigerant Cycle DiagramOperation Data Rays Control Block DiagramMCC813P.C.B Outdoor Unit Inverter AssemblyOutlined of Air Conditioner Control Operation DescriptionRevolution rps Power factor improvement controlCapacity control 1 Compressor revolution range Operation ModelIndoor fan control DC fan motor Prevent-freezing control5. P.M.V. Pulse Modulating Valve Louver controlCompressor revolution rps From Outdoor fan control DC fan motorModel name Cooling capacity control Description of Operation CircuitBy indoor fan speed Limit for maximum compressor motor speedHeating operation Basic controlDefrost control Starting and in stability StabilityHeating capacity control High-temp. release controlTime Automatic operationTemporary cooling operation Temporary OperationTemporary button Control Temporary auto operationAuto Restart Function How to set auto restart functionWhen the unit is on standby Not operating Operation When the unit is in operation OperationFilter Check Lamp Remote Control and its Functions Hi-POWER display Mode displayTemperature display Timer and clock time displayFile NO. SVM-03008 To Disconnect the Appliance from the Main Power Supply Installation ProcedureSafety Cautions File NO. SVM-03008 Attach Installation Diagram of Indoor and Outdoor UnitsFixing bolt arrangement of outdoor unit Optional installation parts Part Parts name ’ty CodeOption Accessory and installation partsOthers NameNew tools for R410A Applicable to R22 model Changes Cutting a hole Installation placeRemote controller Mounting the installation plateElectrical work When the installation plate is directly mounted on the wallChanging drain hose How to remove the Drains CapDie-cutting Front panel slit Case of bottom right or bottom left piping How to fix the Drains CapCase of right or left piping Left-hand connection with pipingDrainage Run the drain hose sloped downwards Indoor unit fixingCopper pipe Tightening connection Refrigerant piping connection FlaringProjection margin in flaring a Unit mm R410A Conventional Copper pipe Tool usedEvacuating Using a vacuum pumpOuter dia Tightening torque Copper pipe Shaping pipesStripping length of connection cable Packed valve handling precautionsWiring connection Test operation Auto restart settingHow to set the auto restart Gas leak testFirst Confirmation HOW to Diagnose the TroubleOperation of air conditioner Description Primary JudgmentOperation which is not a trouble Program operation Judgment by Flashing LED of Indoor Unit IndoorindicationHow to use remote control in service mode Self-Diagnosis by Remote Control Check CodeCause of operation Short circuit. Replace Check Item Judgment of Trouble by Every SymptomTurn on power supply YES Only indoor fan motor does not operate Primary checkInspection procedure Troubleshooting for remote control Pipe clogging Check procedure Check Code 1C Miswiring in indoor/outdoor units and 1EAGE on P.C. board How to Diagnose Trouble in Outdoor UnitMain P.C. board part How to Check Simply the Main PartsDiagnosis/Process flowchart Contents Summary Inspection proceduresOPERATION, TIMER, PRE. DEF Check procedures Procedure Check points Symptom CausesBottom View Sensor characteristic table10-8-2. P.C. board layout Outdoor unit Part name Checking procedure Indoor unit Other parts Part name Checking procedureDiode check Igbt check Checking Method for Each Part Part name Checking procedureCause SymptomPart name Procedures Remarks HOW to Replace the Main PartsFigure 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 Indoor Unit E-Parts Assy Exploded Views and Parts ListFront Panel Assy Cabinet, Front, Assy Outdoor Unit E-Parts Assy Toshiba Carrier Corporation

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

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