Test 4 Moisture Sensor - LG DLE5977W Service Manual

Test 4
Moisture sensor
Caution
Trouble Symptom
Measurement Condition
Take 6pin Connector from
the Controller.
Metal or Wire
Damping cloth
Table 2. IMC Ratio and Display Value / Voltage (IMC : Initial Moisture Content)
IMC
70% ~ 40%
40% ~ 20%
10% ~ Dried clothes
Before measuring resistance, be sure to turn Power off, and do voltage discharge.
(When discharging, contact the metal plug of Power cord with earth line.)
Degree of dryness does not match with Dry Level.
Turn the Dryer's Power Off, then measure resistance.
Short with metal to 6pin connector's Pin
(BLUE wire) and Pin
to Controller.
When measuring resistance in Electric load,
is resistance below 1Ω?
When contacting cloth to Electro load:
1. Is the measurement within the range of Table 2
during Diagnostic Test?
2. Is the measurement within the range of Table 2
when measuring the voltage in 6pin connector's
Pin (BLUE wire) and Pin
Normal Condition
Display Value Voltage(DC) (between 6Pin terminal
50 ~ 130
100 ~ 20
205 ~ 240
(ORANGE wire)
YES
(ORANGE wire)?
YES
2.5V
2.0V ~ 4.0V
Over 4.0V
23
• Check Electro Load
and
NO • Harness Connector.
• Check Harness-
linking connector.
• Replace Control
NO
and Check.
)
Remark
Weight after removing from
Washing Machine
Damp Dry
Completely-dried clothes