Toshiba RAS-10SA-E, RAS-10SKX, RAS-10SAX, RAS-10SK-E service manual There is no beep from

Page 43

9-4. How to Check the Remote Control (Including the Indoor PC Board)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

There is no beep from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the indoor unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Push the START/STOP button. The operation lamp of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the air conditioner main

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

unit does not light.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does the transmission

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

indicator flash?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short-circuit the metal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

terminal at the side of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is there direct

 

NO

 

 

 

 

 

 

 

 

 

 

battery compartment

 

 

sunlight on the

 

 

 

 

 

 

 

 

 

 

 

(all-clear terminal) with a pencil.

receptor of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(wait about 10 seconds)

 

 

air conditioner?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is there any

 

NO

 

 

NO

possible when the

 

 

 

 

 

 

 

 

 

 

 

thyristor

 

 

 

transmitter is moved

 

 

 

 

 

 

 

 

 

 

fluorescent light

 

 

 

 

 

 

nearer to the infrared

 

 

 

 

 

 

 

 

 

 

 

near by?

 

 

 

 

 

 

signal receiver of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

air conditioner?

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

Push the START/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

STOP button

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Battery life

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does the

NO

 

 

 

 

 

 

 

 

 

 

Is operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

transmission

 

 

 

 

 

 

 

 

 

possible when setting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

indicator light?

 

 

 

 

 

 

 

the temporary switch of the

 

 

 

 

 

 

 

 

 

 

 

 

 

air conditioner main unit to

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"TEST RUN" or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"TEMPORARY AUTO"?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

NO

 

Is there any

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

beep and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

operation?

 

 

 

 

 

 

 

 

 

 

 

Can any signal tone

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

be heard in a transistor

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

radio when transmitting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

within 5cm distance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

from the radio?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Avoid direct sunlight.

Keep the air

conditioner away

from thyristor fluorescent light.

PC Board is failure.

 

 

 

 

 

 

 

 

 

 

 

 

Replace

 

 

 

 

Replace the

 

 

 

Normal

 

PC board.

 

 

 

 

batteries

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

After battery replacement,

 

 

 

 

 

shortcircuit the metal terminal at

 

 

 

 

the side of the battery compartment

 

 

 

 

(all-clear terminal) with a pencil.

Remote control is failure.

Replace remote control.

– 43 –

Image 43
Contents R C O Contents What to be Prechecked First Troubleshooting FlowchartsPrimary Judgement of Trouble Sources RAS-10SK-E/10SA-E RAS-10SKX/10SAX Cooling SpecificationsCondition JIS C9612-1994 Temperature Cooling Indoor Unit Construction ViewsRAS-10SA-E RAS-10SAX Outdoor UnitMain P.C. Board Wiring DiagramParts name Type Specifications Specifications of Electrical PartsRAS-10SK-E / RAS-10SA-E RAS-10SKX / RAS-10SAX Refrigerant Cycle DiagramAUTO, COOL, DRY, FAN only MICRO-COMPUTER Block DiagramM3/h Operation DescriptionsFAN only Operation Cool OperationLouver Control DRY OperationTemporary Auto Auto OperationLow-Temperature Limit Control Cooling Operation ECONO. ModeCooling Auto Restart Function How to Set the Auto RestartCase of Power Failure during the Timer Operation How to Cancel the Auto RestartSafety Cautions For general public use Installation ProcedureUK Plugs and Sockets etc Safety Regulations SI Number Attach Installation Diagram of Indoor and Outdoor UnitsInstallation Parts InstallationOptional Parts Mounting the installation plate Installation placeCutting a Hole and Mounting Installation Plate Remote controlElectrical Work When the installation plate is directly mounted on the wallTaking out the power cord Wiring ConnectionHow to remove the front cabinet How to open the screw capHow to install the front cabinet on the indoor unit Stripping length of connecting cableLeft-hand connection with piping Piping and Drain Hose InstallationCase of rightward piping Case of downward pipingDrainage Indoor Unit InstallationStrong wind Tightening connection Refrigerant Piping ConnectionVacuum Pumping FlaringA5 mm hexagon wrench is required Packed Valve Handling PrecautionsGas Leak Test Auto Restart SettingHow to set the Auto Restart OthersIncorrect Cable Connection between Indoor and Outdoor Units Troubleshooting ChartPower Supply Voltage What to be Prechecked FirstOperation of air-conditioner Description Misleading but Good Operations Program Controlled OperationRole of Indoor Unit Controller Primary Judgement of Trouble SourcesBlock display Selecting ordinary mode Self-diagnosis with remote controlOperating key Indication after operation Self-diagnosis by check codesCondition Code Status Power can not be Turned on No Operation at All Troubleshooting FlowchartsPreliminary checks Checking Procedure Power can not be Turned on after Replacing Indoor PC BoardOutdoor Unit does not Operate Only Compressor does not Operate Only Outdoor Fan does not Operate Only the Indoor Fan does not Operate Check procedureThere is no beep from Main PC board part How to Check the PC BoardOperating precautions Inspection proceduresProcedure Check Point Symptom Causes Top View Bottom View PC Board LayoutSensor How to Reduce the Operation Time of the Anti-Restart TimerIndoor Unit RAS-10SK-E, RAS-10SKX Part ReplacementPart name Procedure Remarks Microcomputer RAS-10SK-E, RAS-10SKX Outdoor Unit RAS-10SA-E, RAS-10SAX OFF Part Description Exploded Views and Parts ListIndoor Unit Capillary Tube