LG D5988B, Service Manual, Page: 24 / 42

23
Test 4
Moisture sensor
Caution
Trouble Symptom
Measurement Condition
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.
Normal Condition
Damping cloth
Metal or Wire
Table 2. IMC Ratio and Display Value / Voltage (IMC : Initial Moisture Content)
IMC
70% ~ 40%
40% ~ 20%
10% ~ Dried clothes
50 ~ 130
100 ~ 20
205 ~ 240
2.5V
2.0V ~ 4.0V
Over 4.0V
Weight after removing from
Washing Machine
Damp Dry
Completely-dried clothes
Display Value Voltage(DC) (between 6Pin terminal
)
Remark
Short with metal to 6pin connector’s Pin
(BLUE wire) and Pin
(ORANGE wire)
to Controller.
When measuring resistance in Electric load,
is resistance below 1Ω?
YES
NO
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 (ORANGE wire)?
YES
NO
• Replace Control
and Check.
• Check Electro Load
and
• Harness Connector.
• Check Harness-
linking connector.
Take 6pin Connector from
the Controller.