Toshiba RAS-3M23YACV-E, Service Manual

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Checking procedure
Disconnect the connector and measure the resistance value with tester.
(Normal temp.)
To item of How to judge whether remote control is good or bad of the
Judgment of trouble by symptom.
Measure the resistance value of each winding coil by using the tester.
(Under normal temp. 25°C)
Since judgment of DC motor is difficult on the single motor, refer to 11-
5-1. (3).
No. Part name
1 Room temp. (TA) sensor
Heat exchanger (TC) sensor
2 Remote control
3 Louver motor
MP
24G A
4 Indoor fan motor
Position Resistance value
1 to 4
1 to 6
130 ± 10
Ω
2 to 3
2 to 5
Temperature
10°C 20°C 25°C 30°C 40°C
Sensor
TA, TC (k
Ω
) 20,7 12,6 10,0 7,9 4,5
No. Part name
1 Compressor
(Model : DA130A1F-21F)
2 Outdoor fan motor
(Model : ICF-140-40-8)
3 Compressor thermo.
Bimetal type
(Model : PW - 2AL)
4 Outdoor temperature sensor
(TO), pipe temperature sensor
(TGa, TGb, TGc), discharge
temperature sensor (TD)
Checking procedure
Measure the resistance value of each winding by using the tester.
Measure the resistance value of winding by using the tester.
For details, refer to Section 11-9.
Check conduction by using the tester.
Disconnect the connector, and measure resistance value with the
tester. (Normal temperature)
Temperature
10°C 20°C 30°C 40°C 50°C
Sensor
TD (k
Ω
) 105 64 41 27 18
TO, TGa, TGb, TGc (k
Ω
) 20,7 12,6 10,0 7,9 4,5
Position Resistance value
Red - White 0,51 to 0,57
Ω
White - Black 0,51 to 0,57
Ω
Black - Red 0,51 to 0,57
Ω
Under 20°C
Position Resistance value
Yellow - Pink 5 to 20 k
Ω
Red
White Black
Red
1 Yellow
4 Pink
5 Gray
White Black
1 0 -8-3. Indoor Unit (Other Parts)
11-8-4. Outdoor Unit
1
2
3
4
5
White
Yellow
Yellow
Yellow
Yellow