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Toshiba RAS-10SAV-A, RAS-10SAV-E, RAS-10SKV-A, RAS-10SKV-E (5) Troubleshooting for remote control

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FILE NO. SVM-07008

(5) Troubleshooting for remote control

Press [] button.

Is transmission mark indicated?

YES

	Is receiver on	NO
	indoor unit exposed	NO


	to direct sunlight?
	YES

The unit does not beep at all. OPERATION lamp on indoor unit is not indicated.

NO

Press RESET button

on remote control with tip of pencil.

Is there any

Does indoor unit

NO

NO

operate when

thyristor fluorescent

moving remote control

light nearly?

near receiver or

YES

indoor unit?

Press [

]

button.

YES

Batteries are

exhausted.

NO

Does indoor unit

Is transmission mark NO

start to operate by

automatic restart

indicated?

function?

YES

YES

NO

Does indoor unit

beep and operate?

YES

Does radio sound

is affected by

NO

remote control when

a signal is transmitted

at distance of 5 cm

from radio?

YES Remote control

is defective.

P.C. board is

defective.

Avoid direct	Keep indoor unit	Replace
sunlight.	away from	P.C. board.
	thyristor
	fluorescent light.

Replace	Normal	Replace
batteries.	operation	remote control.

Note : After replacing batteries, press the RESET button with a tip of a pencil.

– 69 –

Contents

Page SAFETY PRECAUTIONS SPECIFICATIONS REFRIGERANT R410A CONSTRUCTION VIEWS WIRING DIAGRAM 1. SAFETY PRECAUTIONS CAUTION DANGER DANGER: HIGH VOLTAGE WARNING 2. SPECIFICATIONS 2-1.Specifications 2-2.Operation Characteristic Curve 3. REFRIGERANT R410A 3-1.Safety During Installation/Servicing 3-2.Refrigerant Piping Installation 3-2-1.Piping Materials and Joints Used 3-2-2.Processing of Piping Materials Fig. 3-2-1Flare processing dimensions Table 3-2-3Dimensions related to flare processing for R410A Outer A (mm) Nominal Table 3-2-6Flare and flare nut dimensions for R22 Fig. 3-2-2Relations between flare nut and flare seal surface 2.Flare Connecting Procedures and Precautions Table 3-2-7Tightening torque of flare for R410A [Reference values] Tightening torque 3-3.Tools 3-3-1.Required Tools 3-4.Recharging of Refrigerant 3-5.Brazing of Pipes 3-5-1.Materials for Brazing 3-5-2.Flux 3-5-3.Brazing Never use gas other than Nitrogen gas 4. CONSTRUCTION VIEWS 4-1.Indoor Unit 4-2.Outdoor Unit 5. WIRING DIAGRAM 5-1.Indoor Unit 5-2.Outdoor Unit 6-1.Indoor Unit 6-2.Outdoor Unit (RAS-10SAV-E, RAS-10SAV-A) Rating 7. REFRIGERANT CYCLE DIAGRAM 7-1.Refrigerant Cycle Diagram Operation Data 8. CONTROL BLOCK DIAGRAM 8-1.Indoor Unit 8-2.Outdoor Unit (Inverter Assembly) MICRO-COMPUTERBLOCKDIAGRAM For INDOOR UNIT 9. OPERATION DESCRIPTION 9-1.Outline of Air Conditioner Control Operation Description Auto Restart Function Remote Controller and Its Fuctions 9-2.Operation Description Page Indication Fan speed (Table 1) Indoor fan and air flow rate Page Page Page Page Page Page Page Page Page Page Page Page 9-3.Auto Restart Function 9-3-1.How to Set the Auto Restart Function 9-3-2.How to Cancel the Auto Restart Function 9-3-3.Power Failure During Timer Operation 9-4.Remote control 4.DRY OPERATION (COOLING ONLY) 5.Hi-POWEROPERATION 6.ECO OPERATION Note: 7.TEMPORARY OPERATION 9.PRESET OPERATION 10.AUTO RESTART OPERATION Setting 11.QUIET OPERATION 12. COMFORT SLEEP OPERATION 9-4-3.Name and Functions of Indications on Remote Controller 10. INSTALLATION PROCEDURE 10-1-2.Optional installation parts Part Parts name Q'ty Code 10-1-3.Accessory and installation parts Others Name 10-1-4.Installation/Servicing Tools <Changes in the product and components New tools for R410A Applicable to R22 model Changes 10-2.Indoor Unit <When the installation plate is directly mounted on the wall 10-2-3.Electrical work CAUTION NOTE 10-2-4.Wiring connection <How to connect the connecting cable 10-2-5.Piping and drain hose installation <Piping and Drain Hose Forming 1. Die-cuttingFront panel slit <How to fix the Drains Cap <In case of right or left piping <Left-handconnection with piping Bend the connection pipe within a radius of 30 mm (∅ 6.35) 40 mm (∅ 9.52) <In case of bottom right or bottom left piping 10-3.Outdoor Unit (Unit : Nám) 10-3-3.Evacuating Tightening torque Tightening torque of flare pipe connections <Shaping pipes AIR PURGE <Packed valve handling precautions Hexagonal wrench is required <Stripping length of connection cable 10-3-4.Wiring connection Information <How to set the auto restart 11. HOW TO DIAGNOSE THE TROUBLE 10-1.First Confirmation 11-2.Primary Judgment 11-3.Judgment by Flashing LED of Indoor Unit 11-4. Self-Diagnosisby Remote Controller (Check Code) 11-4-1.How to Use Remote Controller in Service Mode 11-4-2.Caution at servicing Page 11-5.Judgement of Trouble by Every Symptom Page (3)Only the indoor fan does not operate. <Check procedure (4)Indoor fan motor starts rotating by turning on power supply alone. <Cause <Confirmation procedure (5) Troubleshooting for remote control 11-5-2.Wiring Failure (Interconnecting and serial signal wire) (1)Outdoor unit does not operate 11-6.Check Code 1C (Miswiring in indoor/outdoor units) and 1E 11-7.How to Diagnose Trouble in Outdoor Unit 11-8.How to Check Simply the Main Parts (3) Checking procedure Procedure Check Point (Symptom) Causes <Sensor characteristic table 11-8-3.Indoor unit (Other parts) Part name Checking procedure 11-8-4.Outdoor unit 11-8-5.Checking Method for Each Part 11-9.How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 12. PART REPLACEMENT 12-1.Indoor Unit No Part name No. Part name 12-2.Microcomputer Solder side 12-3-1.Outdoor Unit Be careful when checking the inverter because high-voltage circuit is incorporated in it This capacitor has mass capacity Therefore, it is dangerous that a Page Page Requirement: Perform the work on a corrugated cardboard, cloth, etc. to prevent scratches to the product Q’ty 13. EXPLODED VIEWS AND PARTS LIST 13-1.Indoor Unit (E-PartsAssy)