LG DLG1102W Service Manual

21
Test 2
Thermistor Test --- Measure with Power Off
Disconnect the thermistor
from the harness connector
and measure the resistance
of the thermistor. Does the
resistance measured match
the temperature of the
thermistor in the chart? (Use
room temperature unless the
thermistor is warm from
running the dryer.)
•Measure resistance of all wires. Resistance should be < 0 Ω.
•Check all thermistor harness connectors for corrosion, loose/bent pins,
broken wires, etc.
•Check all harness wires for cuts, or broken wires.
Measure the resistance between
the NA6-1 (RD) and NA6-4 (BL).
Does the resistance measured
match the temperature of the
thermistor in the chart? (Use
room temperature unless the
thermistor is warm from running
the dryer.)
Disconnect the NA6
connector from the main
PCB.
Measure the resistance
between the NA6-6 (GN) pin
and a chassis ground screw.
Is the resistance <1 Ω ?
•Replace the
main PCB
•Check all wiring
harness
connections,
wires and
ground screws.
•Replace the
thermistor
YES
NO
YES
NO
NO
YES
Thermistor temperature/resistance chart (±5%)
Air TEMP.
50 10
18.0
14.2
11.7
9.3
60
16
70 21
80 27
90 32
100 38
110 43
120 49
130 54
140 60
150 66
160 71
7.7
6.2
5.2
4.3
2.9
3.0
2.5
2.2
Air TEMP. Air TEMP.RES.
kΩ
RES.
kΩ
RES.
kΩ

LG DLG1102W Specifications

General

Brand	LG
Model	DLG1102W
Category	Dryer
Language	English