How to Check Simply the Main Parts | Toshiba RAS-16GAVP-E instruction

Diagnosis/Process flowchart

Item

Contents

Summary

Check

Check winding resistance

between phases of compres-

sor, and resistance between

outdoor frames by using a

tester.

• Is not grounded.

→

OK if 10MΩ

or more

Replace control

board assembly.



→ OK if 0.51Ω

→ 0.57Ω

• Is not short-circuited



between windings.



(Check by a digital tester.)

Check

• Winding is not opened.

compressor

winding

resistance.

Operation

Remove connector CN300 of

the outdoor fan motor, turn

on the power supply breaker,

Replace

and perform the operation.

control board.

compressor.

(Stops though activation is

prompted.)

Check operation within 2 minutes 20 seconds after activation stopped.

11-9. How to Check Simply the Main Parts

11-9-1. How to Check the P.C. Board (Indoor Unit)

(1)Operating precautions

1)When removing the front panel or the P.C. board, be sure to shut off the power supply breaker.

2)When removing the P.C. board, hold the edge of the P.C. board and do not apply force to the parts.

3)When connecting or disconnecting the connectors on the P.C. board, hold the whole housing. Do not pull at the lead wire.

(2)Inspection procedures

1)When a P.C. board is judged to be defective, check for disconnection, burning, or discoloration of the copper foil pattern or this P.C. board.

2)The P.C. board consists of the following 2 parts

a.Main P.C. board part :

DC power supply circuit (5V, 12V, 15V), Indoor fan motor control circuit, CPU and peripheral circuits, buzzer, and Driving circuit of louver.

b.Indication unit of infrared ray receiving infrared ray receiving circuit, LED : To check defect of the P.C. board, follow the procedure described below.

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Toshiba RAS-16GAVP-E How to Check Simply the Main Parts, How to Check the P.C. Board Indoor Unit

Models: RAS-10GAVP-E RAS-16GAVP-E RAS-13GAVP-E RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E