LG DLEC733W Training Manual page 21

THERMISTOR
Trouble Symptom : Poor drying performance(over-drying or no drying). Abnormal
Measurement condition : Power cord is unplugged.
Dryer
Temperature
TH-Heater
10°C
250~180kΩ
20~30°C
180~113kΩ
30~40°C
Series 33 Dryer Training
thermistor operation.
With CN1(RED4), CN4(WH4) disconnected
from Controller, check
TH-Heater
CN4 - CN4
data according to surrounding temperature?
TH-Drum
CN1 - CN1
data according to surrounding temperature?
• When measuring "TH-Heater"
Thermistor, they range Table
data ?
• When measuring "TH-Drum "
Thermistor, they range Table
data ?
• Check Harness
Resistance
Dryer
Temperature
TH-Drum
19~111kΩ 40~50°C
11~8kΩ 50~60°C
8~5kΩ 60°C
TROUBLESHOOTING
YES
resistance ranges table
resistance ranges table
NO
NO
YES
NO
YES
Resistance
TH1
113~75kΩ 5~4kΩ
75~50kΩ 4~2.5kΩ
50kΩ 2.5kΩ
21
• Check and replace
Controller
• Replace "TH-Heater"
Thermistor
• Replace "TH-Drum "
Thermistor
Remark
TH2
Troubleshooting