Samsung LT-M1775 Specifikace stáhnout pdf (Strana 29)

Samsung Electronics28

6-4 Fault Diagnosis of Major Parts

• Indoor "Temp.Sensor"

• Indoor "Heat ex. Sensor"

• Outdoor "Temp.Sensor"

• Outdoor "Deice Temp. Sensor"

• Outdoor "Discharge

Temp.Sensor"

• Outdoor "OLP Temp.Sensor"

Indoor Fan Motor

Outdoor Fan Motor

Stepping Motor

Measure resistance with a tester.

Normal

Abnormal ∞, 0Ω … open or short

Normal

Abnormal ∞, 0Ω … open or short

Measure the resistance between terminals of the connector(CN72) with a tester.

Normal At the normal temperature (10°C ~ 30°C)

Abnormal ∞, … open or short

Measure the voltage between motor wires with a tester.

Normal At the normal temperature (10˚C ~ 30˚C)

✳ SH09BWHX only (AC Motor)

Abnormal ∞, … open or short

Measure the resistance between the red wire and each terminal wire with a tester.

Normal About 300Ω at the normal temperature (20˚C ~ 30˚C)

Abnormal ∞, … open or short

DiagnosisPart

Ambient temperature 15°C20°C25°C30°C35°C40°C

Resistance of

14.68 12.09 10 8.31 6.94 5.83

thermistor[KΩ]

Ambient temperature 0°C10°C20°C30°C40°C50°C

Resistance of

553 362 242 166 165 82

thermistor[KΩ]

Compare terminal Resistance(Ω) Remark

Yellow, Blue 460Ω±10 Main

Yellow, Red 314Ω±10% Sub

Compare terminal Resistance(Ω) Remark

Black, Red 255Ω±10% Main

Black, Yellow 415Ω±10% Sub

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