Toshiba RAV-SM454MUT-E, RAV-SM404MUT-TR Summary of Troubleshooting, Before troubleshooting

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6. TROUBLESHOOTING

6-1. Summary of Troubleshooting

<Wired remote controller type>

1.Before troubleshooting

1)Required tools/instruments

•+ and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

•Tester, thermometer, pressure gauge, etc.

2)Confirmation points before check

a) The following operations are normal.

1.Compressor does not operate.

•Is not 3-minutes delay (3 minutes after compressor OFF)?

•Is not the outdoor unit in standby status though the remote controller reached the setup temperature?

•Does not timer operate during fan operation?

•Is not an overflow error detected on the indoor unit?

•Is not outside high-temperature operation controlled in heating operation?

2.Indoor fan does not rotate.

•Does not cool air discharge preventive control work in heating operation?

3.Outdoor fan does not rotate or air volume changes.

•Does not high-temperature release operation control work in heating operation?

•Does not outside low-temperature operation control work in cooling operation?

•Is not defrost operation performed?

4.ON/OFF operation cannot be performed from remote controller.

•Is not automatic address being set up?

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

•Is not being carried out a test run by operation of the outdoor P.C. board?

b)Did you return the cabling to the initial positions?

c)Are connecting cables of indoor unit and remote controller correct?

2. Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

Trouble

→

Confirmation of check code display

→

Check defective parts.

NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables.

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Contents Split Type Contents Troubleshooting Indoort UnitOriginal instruction Work undertaken Protective gear worn Explanation of indicationsExplanation of illustrated marks Indication ExplanationConfirmation of warning label on the main unit DescriptionPrecaution for Safety Proceeding with the repair work Refrigerant used by this air conditioner is the R410A Resistance and water drainage Explanations given to user RelocationDeclaration of Conformity Specifications Flare nut Safety Caution Concerned to New RefrigerantCopper pipe Piping JointTools General tools Conventional tools can be usedConcealed Duct type SM56 type Round ductSM110 type Round duct Space required for Installation and servicing RAV-SM404MUT∗, RAV-SM454MUT∗, RAV-SM564MUT∗Dimension RAV-SM564BT∗, RAV-SM804BT∗, RAV-SM1104BT∗, RAV-SM1404BT∗RAV-SM564CT∗, RAV-SM804CT∗, RAV-SM1104CT∗, RAV-SM1404CT∗ Compact 4-way Cassette Type RAV-SM564BT ∗, RAV-SM804BT ∗, RAV-SM1104BT ∗, RAV-SM1404BT ∗ Ceiling Type RAV-SM564CT ∗, RAV-SM804CT ∗, RAV-SM1104CT ∗, RAV-SM1404CT ∗Specifications of Electrical Parts Parts name Type SpecificationsIndoor Controller Block Diagram Case of Connection of Wired Simple Remote ControllerCase of Connection of Wireless Remote Controller Wireless remote controllerMax units Outline of specifications Remarks Control outline CommandTemperature in heating Heat Outline of specifications Ceiling typeTc n TcjTcn ConditionsSetup at shipment Cooling/dry operation Heating/fan operation All operationsAlarm All modesCase of wired remote controller LCD Figure if To 28C Setup AT Local Outline of specifications Remarks MCC-1402 TCJ Exct Disp CHKIndoor P.C. Board Optional Connector Specifications MCC-1402 Troubleshooting procedure Summary of TroubleshootingBefore troubleshooting Wired remote controller typeWireless remote controller type Outline of judgment Lamp indication Check code Cause of trouble occurrenceLamp indication Check code Others Other than Check Code Remote controller detected Indoor unit detectedCentral control devices detected Check Code List Error mode detected by indoor unitError mode detected by outdoor unit Air conditionerOperation of diagnostic function Check Status Power supply error of remote controller, Indoor Check code E01 error E09 errorE04 error E10 errorE18 error E08, L03, L07, L08 errorL09 error L20 error L30 errorP30 error Central controller P10 error F10 errorP12 error Exchange to cooling cycle P19 errorCheck by tester Exchange to heating cycleF02 error F01 errorC06 error 11 model connection interface E03 error Master indoor unit F29 errorP31 error Follower indoor unit TA, TC, TCJ, TE,TS, to sensor Temperature Resistance value characteristic tableTA, TC, TCJ, TE, TS, to sensor TD, TL sensorPart name Checking procedure Position Resistance valueReplacement procedures CaseSetting data read out from Eeprom C. Board for indoor unit servicing replacement proceduresCode No. required at least Contents Writing the setting data to Eeprom MCC-1402Setting data Type Setting data Factory-set valueSetting data Type Type name abb Type Code NoTest Run Setup on Remote Controller Wired remote controller Compact 4-way Cassette Type and Concealed Duct TypeProcedure Description Test cooling operation Test heating operationPractical operation LED Display on Indoor P.C. Board D002 RedD203 Red To change the selected indoor unit, proceed to Procedure Function Selection SetupUsing the set temperature To change item to be set up, proceed to ProcedureItem No. DN table Selection of function Description At shipmentDescription At shipment When connected 2 remote controllers operate the twin Wireless remote controllerWhen connected 2 remote controllers operate an idoor unit Setup methodContents Group control operation Calling of error history ContentsPushing Test button returns the display to usual display System exampleIndoor unit power-ON sequence Initial communicationUsual regular communication Model Connection Interface TCC-LINK adapter Microprocessor block diagramModel connection interface wiring connection Model name TCB-PCNT30TLEWiring Specifications C. Board Switch SW01 SetupAddress setup How to set up from indoor unit side by remote controllerExternal view of P.C. board assembly Push Test + Vent buttons for 4 seconds or moreDuring unset time, At shipment from factory is displayed Address Setup Address setup procedureSystem configuration Address Setup & Group Control TerminologyExample Automatic Address Example from Unset Address No miswiring Only turning on source power supply Automatic completionSimultaneously for 4 seconds or more Using timer time Buttons, set the line addressPush SET + CL + Test buttons ButtonProcedure To know the position of indoor unit body by addressButton if the unit stops Detachment Part name ProcedureCeiling panel RBC-UM11PGWE Preparing work AttachmentPart name Procedure Remarks Part name Procedure Remarks Ceiling panel Panel has directionalityProcedure Remarks No. Part nameElectric parts box No. Part name Procedure Fan motor 1. Detachment Drain pan 1. Detachment Drain pump 1. DetachmentPart name Procedure Remarks Heat Exchanger Recover refrigerant gasDetails of sensor lead wire drawing Part name Procedure Remarks RAV-SM∗∗∗BT ∗Fan motor Remove the Multi blade fan † Drain pump Remove the drain pan and float switch No. Part name Procedure Remarks 100101 102 103 222 209237 104105 Location Description Model name404MUT-E 454MUT-E 564MUT-E 106 404MUT-TR 454MUT-TR 564MUT-TR107 Electric parts401 Location Model name108 109 RAV-SM564BT-E RAV-SM564BT-TR110 111 RAV-SM804BT-E RAV-SM804BT-TR112 113 1104BT-TR114 Location Model name RAV-SM Description564BT-E 804BT-E 1104BT-E 1404BT-E 264 220115 116 Description Model name RAV-SMLocation 117 118 Description 564CT-E 804CT-E 1104CT-E 1404CT-ECheck of Concentration Limit Toshiba Carrier Corporation