Toshiba RAV-SM800XT-E, RAV-SM560XT-E service manual Operation

Page 52

Table 10-2-3

 

Operation of diagnostic function

 

 

Judgement and action

 

 

 

 

 

Check code

Symptom

Unit status

Condition

 

 

 

 

 

 

 

 

 

 

Inverter over-current protective circuit

All stop

Displayed when

1.

Inverter immediately stops even if restarted.

 

operates.

 

error is detected

 

• Compressor rare short

 

(For a short time)

 

 

2.

Check IPDU.

 

 

 

 

 

• Cabling error

 

 

 

 

 

 

 

Error on current detection circuit

All stop

Displayed when

1.

Compressor immediately stops even if restarted.

 

• Current value is high at AC side even

 

error is detected

 

: Check IPDU.

 

while compressor stops.

 

 

2.

Phase-missing operation of power supply

 

• Phase of power supply is missed.

 

 

 

• Check power voltage of R, S, T.

 

 

 

 

 

 

 

Coming-off, disconnection or short of

All stop

Displayed when

1.

Check outdoor temp sensor (TE, TS).

 

outdoor temp sensor

 

error is detected

2.

Check CDB.

 

 

 

 

 

 

 

Coming-off, disconnection or short of

All stop

Displayed when

1.

Check outdoor temp sensor (TD).

 

outdoor temp sensor

 

error is detected

2.

Check CDB.

 

 

 

 

 

 

 

Compressor drive output error

All stop

Displayed when

1.

Abnormal overload operation of refrigerating

 

• Tin thermistor temp, Tin error

 

error is detected

 

cycle

 

(IPDU heat sink temp. is high.)

 

 

2.

Loosening of screws and contact error of IPDU

 

Communication error between IPDU

 

 

 

and heat sink

 

• Connector coming-off between CDB and

 

 

3.

Cooling error of heat sink

 

IPDU

 

 

4.

Check cabling of CDB and IPDU.

 

 

 

 

 

 

 

Compressor does not rotate. (Over-current

All stop

Displayed when

1.

Compressor error (Compressor lock, etc.)

 

protective circuit works when constant time

 

error is detected

 

: Replace compressor.

 

passed after activation of compressor.)

 

 

2.

Cabling trouble of compressor (Phase missing)

 

 

 

 

 

 

 

Discharge temp error

All stop

Displayed when

1.

Check refrigerating cycle. (Gas leak)

 

• Discharge temp over specified value was

 

error is detected

2.

Error of electron control valve

 

detected.

 

 

3.

Check pipe sensor (TD).

 

 

 

 

 

 

 

Compressor breakdown

All stop

Displayed when

1.

Check power voltage. (AC200V±20V)

 

• Operation frequency lowered and stops

 

error is detected

2.

Overload operation of refrigerating cycle

 

though operation had started.

 

 

3.

Check current detection circuit at AC side.

 

 

 

 

 

 

 

High-voltage protection error by TE sensor

All stop

Displayed when

1.

Overload operation of refrigerating cycle

 

• TE temp over specified value was

 

error is detected

2.

Check outdoor temp sensor (TE).

 

detected.

 

 

 

 

 

 

 

 

 

 

 

DC outdoor fan motor error

All stop

Displayed when

1.

Position detection error

 

• IDC operation or lock was detected by

 

error is detected

2.

Over-current protection circuit operation of

 

DC outdoor fan driving.

 

 

 

outdoor fan drive unit

 

 

 

 

 

• Check CDB.

 

 

 

 

 

• Refer to Judgment of outdoor fan.

 

 

 

 

 

 

 

Error on IPDU position detection circuit

All stop

Displayed when

1.

Position detection circuit operates even if driving

 

 

 

error is detected

 

by removing 3P connector of compressor.

 

 

 

 

 

• Replace IPDU.

 

 

 

 

 

 

 

Coming-off, disconnection or short of

Operation

Displayed when

1.

Check outdoor temp sensor (TO).

 

outdoor temp sensor

continues.

error is detected

2.

Check P.C. board.

 

 

 

 

 

 

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Page 51 Page 53
Image 52
Page 51 Page 53
Contents AIR-CONDITIONER Contents Specifications Indoor UnitOperation characteristic curve Cooling Heating CurrentOutdoor Unit RAV-SM560AT-E RAV-SM800AT-EConstruction Views Outdoor Unit RAV-SM560AT-E Outdoor Unit RAV-SM800AT-E Systematic Refrigerating Cycle Diagram RAV-SM560XT-E / RAV-SM560AT-ERAV-SM800XT-E / RAV-SM800AT-E Indoor unitWiring Diagram Color IdentificationL N Board Specification of Electrical Parts Parts name Type SpecificationsSafety During Installation/Servicing Refrigerant Piping InstallationRefrigerant R410A Piping materials and joints usedOuter diameter mm R410A R22 1 Thicknesses of annealed copper pipes Thickness mmProcessing of piping materials Clutch type Wing nut type Width·m kgf·cm ·m kgf·mRequired tools 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 Filler FluxControl Block Diagram OperationWhen power supply is reset Operation mode selectionAir volume control Operation DescriptionCool air discharge preventive control 1 Cold draft preventing controlFreeze preventive control Low temperature release High-temp release controlLouver control Filter sign displayHow to set auto restart function Auto Restart FunctionOperation MotionsHow to cancel auto restart function Power failure during timer operationHow to turn off filter check lamp Filter Check LampInstallation Procedure Installation Diagram of Indoor and Outdoor UnitsUnder Ceiling Installation Console InstallationPrecautions for Safety To Disconnect the Appliance from Main Power SupplyPage Accessory parts Accessory parts and Parts to be procured locallyParts to be procured locally Selection of Installation Place Avoid installing in the following placesInstallation Place Remote controllerRemote controller usage Before Installation Remove the Air inlet grilleInstall the indoor unit Install the Suspension boltsCondition for Installation Piping and Drain Hose InstallationConnect the Flexible pipe 5 to the large pipe Gas side Unit must not decline more than 15 mm in either Cutting a hole and mounting the Installation plateAxis Drain Piping Work DrainageRefrigerant Piping Tightening connection Evacuating Heat insulation For RAV-SM560AT-E model Electrical Work Final Installation Checks LED indication and code checking Environment Troubleshooting Summary of TroubleshootingBefore troubleshooting Troubleshooting procedureSelf-Diagnosis by Remote Control Check Code How to use remote control in service modeJudgement and action No display in the setting at shipment Operation Troubleshooting for Each Check Code 1A error YESError 1C error* Except RAV-SM560AT-E 1E error 1D error1F error Connector normal? TA sensor TC, TCJ sensor Caracteristics-1 Caracteristics-2 Caracteristics-320 TE, TO, TS sensor TD sensor Caracteristics-4Compressor does not operate Inspection procedurePrimary check Cooling and heating model Are all of compressor cords normal? Detachments How to install the Air inlet grilleRemove the Panel arms from the Front panel Open 3 Cap screws and remove the screws How to remove the Drain pan Assembly Pan assembly Refrigeration How to remove the Refrigeration assemblyHow to remove the Multiblade fan Part name Procedures RemarksFan motor No. Part name Procedure Remarks DetachmentProcedure Remarks Requirement Connection with the power terminal Part name Procedure Remarks ‡ Compressor Perform works of items 1 ‚, ƒ, „, … Fan guard Remove the upper cabinet Discharge port cabinet for the heat ex Requirement Part name… Control P.C Remove the inverter box from P.C. board base Loosen the flange nut by turning clock † Compressor Perform works of items , ‚, ƒ, „, Ø4 x 10L , 2 pcs. per one reactor Product Exploded Views and Parts List Indoor Unit E-Parts AssyAir Inlet Grille Inverter 21,22 16,17 Outdoor Unit Inverter Assy, RAV-SM560AT-E 702 TE Sensor TS Sensor To Sensor TD Sensor 701 705 703 704Inverter BOX Outdoor Unit Inverter Assy, RAV-SM800AT-E
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