11. HOW TO DIAGNOSE THE TROUBLE

The pulse motor circuits are mounted to both indoor and outdoor units.

Therefore, diagnose troubles according to the trouble diagnosis procedure as described below.

(Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)

Table 11-1

No.

Troubleshooting Procedure

Page

 

 

 

1

First Confirmation

70

 

 

 

2

Primary Judgment

71

 

 

 

3

Judgment by Flashing LED of Indoor Unit

71

 

 

 

4

Self-Diagnosis by Remote Controller

72

 

 

 

5

Judgment of Trouble by Every Symptom

75

 

 

 

No.

Troubleshooting Procedure

Page

 

 

 

6

How to Check Simply the Main Parts

80

 

 

 

7

Troubleshooting

81

 

 

 

8

How to Diagnose Trouble in Outdoor Unit

82

 

 

 

9

How to Check Simply the Main Parts

83

 

 

 

10

How to Simply Judge Whether Outdoor

88

Fan Motor is Good or Bad

 

 

 

 

 

KPrecautions when handling the new inverter (3DV Inverter)

CAUTION: HIGH VOLTAGEN

The high voltage circuit is incorporated.

Be careful to do the check service, as the electric shock may be caused in case of touching parts on the P.C. board by hand.

The new inverter (3DV inverter) will be incorporated starting with this unit.

(3DV: 3-shunt Discrete Vector control)

KThe control circuitry has an uninsulated construction.

 

 

G-Tr

Compressor

 

 

FET

Fan motor

 

Photocoupler

 

 

 

(6IN1)

 

Separated potential

MCU

 

 

 

 

Hall device

 

 

 

 

 

 

Photocoupler

Shared potential

JAVP-E series (insulated type)

 

 

 

IGBT × 6

Compressor

 

 

 

 

Fan motor

 

Driver

Amplifier

FET × 6

 

MCU

Driver

 

 

 

 

 

 

 

 

Amplifier

 

 

 

SAVP-E, SAVP-ND, GAVP-E, EAVP-E series (uninsulated type)

Fig. 11-1

– 68 –

Page 68
Image 68
Toshiba RAS-10SAVP-E, RAS-B13SKVP-E Precautions when handling the new inverter 3DV Inverter, JAVP-E series insulated type

RAS-10SAVP-E, RAS-B10SKVP-E, RAS-B13SKVP-E specifications

Toshiba has established itself as a leader in the HVAC market, known for its innovative technologies and reliable performance. Among its range of air conditioning units, the Toshiba RAS-B10SKVP-E, RAS-10SAVP-E, and RAS-B13SKVP-E models stand out for their efficiency and advanced features.

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