LG DLEY1701 E Series Service Manual page 21

Test 2
Thermistor Test --- Measure with Power Off
Caution
Trouble Symptom
Measurement Condition
Take the NA6 Connector
from the Controller.
Table 1. Resistance for Thermistor Temperature.
■
℉
Air TEMP. [ ( )]
50 (10 )
℉
60 (16 )
℉
80 (21 )
℉
70 (27 )
℉
efore measuring resistance, be sure to turn power off, and do voltage discharge.
(When discharging, contact the metal plug of power cord with the ground.)
During Diagnostic Test, tE1 and tE2 error occur.
During operation, heater would not turn off, or remains on.
Difference between actual and sensed temperature is significant.
After turning power off, measure the resistance.
Short with metal to the NA6 connector’s
Pin (Yellow Wire) and
Pin ( lue Wire) to controller
⑤
Check if resistance is in the range of Table 1
when measuring resistance between
terminals after separating harness
from thermistor assembly connector.
Check harness-linking connector.
RES. [K
Air TEMP. [
18.0
90 (32
℉
14.2
100 (38
℉
11.7
110 (43
℉
9.3
120 (49
℉
O
YES
℉
RES. [K
( )]
7.7
)
℃
6.2
)
℃
) 5.2
℃
)
4.3
℃
21
Check if control
·
and the 6 pin
connector are
YES
properly
connected.
Replace
·
controller
Replace
O
·
thermisto r.
℉
RES.
Air TEMP. [
( )]
130 (54 )
℉
140 (60 )
℉
150 (66 )
℉
160°F (71 )
2.9
3.0
2.5
2.2