FILE NO. SVM-03008

10-5. Judgment of Trouble by Every Symptom

10-5-1. Indoor unit (Including remote contro)

(1) Power is not turned on (Does not operate entirely)

<Primary check>

1.Is the supply voltage normal?

2.Is the normal voltage provided to the outdoor unit?

3.Is the crossover cable connected properly?

4.Is the fuse (F01) blown?

 

 

 

Operation

 

 

 

Check Item

 

 

 

Considerable principle cause

Turn off power supply once, and

 

Measures

5 second later, turn it on again.

 

 

 

 

 

NO

 

 

Item by symptoms

Is OPERATION lamp flashing?

 

 

 

YES

 

 

 

Is it possible to turn on

NO

Does transmission mark

NO

power supply by pushing

on remote control flash

 

Remote control is defective.

[START/STOP] button

 

normally, and is its signal

 

 

on remote control?

 

transmitted properly?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer to (5)

Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit operates normally.

 

 

 

 

 

 

 

 

 

 

 

 

for remote control .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is fuse (F01)

YES

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

Parts (R01, R04, DB01, C01,

 

 

 

 

motor connector

 

 

 

 

 

 

 

 

 

 

of indoor control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C03, IC01 and T01) are defective.

 

 

 

 

between 1 and 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

board blown?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

short-circuit?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

(DC12 V or 5 V)

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

indicated on rear of

 

 

 

 

 

 

 

 

 

 

 

 

Microcomputer

 

 

 

 

 

 

 

 

 

Replace main

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

indoor control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is defective.

 

 

 

 

 

 

 

 

 

P.C. board

 

 

 

board normal?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is DC310-340 V

NO

 

 

Refer to <Primary check>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

supplied to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

or this problem is one step

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

primary side of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

short of power P.C. board block.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

transfer switch?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Are DC15 V, 12 V

NO

 

 

 

 

 

 

 

 

 

 

Are DC15 V, 12 V

NO

 

 

 

Transfer swith,

 

 

 

 

 

 

 

 

 

 

 

Turn off breaker once

 

 

 

 

IC (IC01) for

 

 

 

 

 

 

 

 

 

 

 

and 7 V supplied to

 

and 7 V supplied to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

secondary side of

 

 

 

and turn it on again

 

secondary side of

 

 

 

 

power supply or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

after removing motor.

 

 

 

 

 

fan motor is

 

 

 

 

 

 

 

 

 

 

 

transfer switch?

 

 

 

 

transfeor switch?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

defective.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace motor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of damage of the motor.

– 58 –

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Toshiba RAS-13UKV-E2, RAS-13UAV-E2 service manual Judgment of Trouble by Every Symptom, Check Item
Page 58 Page 60

RAS-13UAV-E2, RAS-13UKV-E2 specifications

The Toshiba RAS-13UKV-E2 and RAS-13UAV-E2 air conditioning units represent a significant step forward in both comfort and energy efficiency. Designed for residential and light commercial use, these models are packed with features that cater to diverse climate control needs while adhering to modern standards of sustainability.

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