LG TD-C70040E - Moisture Sensor Check

26
DIAGOSTIC TEST
11
Test 6 Thermister check
Trouble Symptom : Poor drying performance(over-drying or no drying). Abnormal
thermistor operation.
Measurement condition :
• When measuring "TH-Heater"
Thermistor, they range Table
data ?
YES
NO
NO
YES
• When measuring "TH-Drum "
Thermistor, they range Table
data ?
• Check Harness
YES
NO
Dryer
Temperature
Resistance
TH-Heater TH1 TH2TH-Drum
Dryer
Temperature
Resistance
Remark
10°C
20~30°C
30~40°C
40~50°C
50~60°C
60°C
250~180kΩ
180~113kΩ
113~75kΩ
75~50kΩ
50kΩ
5~4kΩ
4~2.5kΩ
2.5kΩ
19~111kΩ
11~8kΩ
8~5kΩ
4 3
2
GN1(RD4) GN4(WH4)
1
4 3
21
With CN1(RED4), CN4(WH4) disconnected
from Controller, check
TH-Heater
CN4
- CN4 resistance ranges table
data according to surrounding temperature?
TH-Drum
CN1 - CN1 resistance ranges table
data according to surrounding temperature?
• Check and replace
Controller
• Replace "TH-Heater"
Thermistor
• Replace "TH-Drum "
Thermistor