Toshiba RAS-13UAV-E2, RAS-13UKV-E2 Check procedures Procedure Check points Symptom Causes

Page 68

 

 

 

 

 

FILE NO. SVM-03008

(3) Check procedures

 

 

 

 

 

 

 

Table 10-8-1

 

 

 

 

 

 

 

 

No.

Procedure

 

Check points (Symptom)

 

Causes

 

 

 

 

1

Turn off the power supply and

Check whether or not the fuse (F01)

Impulse voltage was applied or the

 

remove the P.C. board assembly

is blown.

indoor fan motor short-circuited.

 

from electronic parts base. Remove

 

 

 

 

 

the connecting cables from the

 

 

 

 

 

terminal block.

 

 

 

 

 

 

 

 

2

Remove the connector of the motor

Check power supply voltage :

1. The terminal block or the cross-

 

and turn on the power supply. If

1.

Between TP2 and TP3

 

over cable is connected wrongly.

 

OPERATION lamp flashes (once

 

(AC 220-240 V)

2.

The capacitor (C01), line filter

 

per second), it is not necessary to

2.

Between e and d (DC 310-340 V)

 

(L01), resistor (R01), or the diode

 

check steps (1 to 3) in the right

3.

Between d of C10 and output side

 

(DB01) is defective.

 

next column.

 

of IC08 (DC 15 V)

3.

IC01, IC02 and T01 are defective.

 

 

4.

Between 12 V and GND

4.

IC01, IC02 and T01 are defective.

 

 

5. Between 5 V and GND

5.

IC01, IC02, IC07 and T01 are

 

 

 

 

 

defective.

 

 

 

 

3

Push [START/STOP] button once to

Check power supply voltage :

<Heating and cooling model>

 

start the unit. (Do not set the mode

1.

Between CN23 and CN24

IC03 and IC04 are defective.

 

to Fan Only or On-Timer operation.)

 

(DC 15-60 V)

 

 

 

 

 

 

4

Shorten the line of the restart delay

Check whether or not all lamps

The lamps are defective or the

 

timer and start unit.

(OPERATION, TIMER, PRE. DEF,

housing assembly (CN13) is

 

 

FILTER and Hi POWER) are

defective.

 

 

indicated for 3 seconds and they

 

 

 

 

return to normal 3 seconds later.

 

 

 

 

 

 

 

5

Push [START/STOP] button once to

1. Check whether or not the

1.

The temperature of the indoor

 

start the unit.

 

compressor operates.

 

heat exchanger is extremely low.

 

• Shorten the time of the restart

2.

Check whether or not the

2.

The connection of the heat

 

delay timer.

 

OPERATION lamp flashes.

 

exchanger sensor is loose.

 

• Set the operation mode to COOL.

 

 

 

(The connector is disconnected.)

 

• Set the fan speed level to AUTO.

 

 

 

(CN01)

 

• Set the preset temperature much

 

 

3.

The heat exchanger sensor and

 

lower than the room temperature.

 

 

 

the P.C. board are defective.

 

(The unit (compressor) operates

 

 

 

(Refer to Table 10-4-1.)

 

continuously in the above

 

 

4.

The main P.C. board is defective.

 

condition.)

 

 

 

 

 

 

 

 

 

 

6

If the above condition (No. 5) still

1.

Check whether or not the

1.

The temperature of the indoor

 

continues, start the unit in the

 

compressor operates.

 

heat exchanger is extremely high.

 

following condition.

2.

Check whether or not the OPERA-

2.

The connection of the heat

 

• Set the operation mode to HEAT.

 

TION lamp flashes.

 

exchanger sensor short-circuited.

 

• Set the preset temperature much

 

 

 

(CN01)

 

higher than room temperature.

 

 

3.

The heat exchanger sensor and

 

 

 

 

 

the P.C. board are defective.

 

 

 

 

 

(Refer to Table 10-4-1.)

 

 

 

 

4.

The main P.C. board is defective.

 

 

 

 

 

 

7

Connect the motor connector to the

1.

Check it is impossible to detect the

1.

The indoor fan motor is defective

 

motor and turn on the power supply.

 

voltage (DC 15 V) between 3 and 4

 

(Protected operation of P.C.

 

Start the unit the following condition

 

of the motor terminals.

 

board.)

 

• Set the operation mode to FAN.

2.

The motor does not operate. (But it

2.

The connection or the motor

 

• Set the fan speed level to HIGH.

 

is possible to receive the signal

 

connector is loose.

 

(The unit (compressor) operates

 

from the remote control.)

3.

The P.C. board is defective.

 

continuously in the above

3.

The motor rotates but vibrates

 

 

 

condition.)

 

strongly.

 

 

 

 

 

 

 

 

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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·mGeneral tools Conventional tools can be used ToolsRequired tools 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 PVCheck Item Diagnosis Result Wiring Diagram1 Simple Check for Failure Diagnosis 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 motorCompressor revolution rps From Outdoor fan control DC fan motorModel name 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 To Disconnect the Appliance from the Main Power Supply Installation ProcedureSafety Cautions 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 workChanging drain hose How to remove the Drains CapDie-cutting Front panel slit 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 EvacuatingStripping length of connection cable Packed valve handling precautionsWiring connection Auto restart setting How to set the auto restartGas leak test Test operationHOW to Diagnose the Trouble First ConfirmationOperation of air conditioner Description Primary JudgmentOperation which is not a trouble Program operation 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. DEFBottom View Sensor characteristic table10-8-2. P.C. board layout 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

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