Table of Contents
Advertisement
Test 2 Thermistor Test --- Measure with Power Off
Caution
Trouble Symptom
Measurement Condition
ake NA8 Connector from
T
the Controller.
Table 1. Resistance for Thermistor Temperature.
Air TEMP. [°F( )]
50°F (10
)
60°F (16 )
80°F (21 )
70°F (27 )
Before measuring resistance, be sure to turn the power off and discharge voltage.
(When discharging, contact the metal plug of power cord with the ground.)
During diagnostic test, tE1 and tE2, an error occurs.
During operation, the heater does not turn off.
Difference between actual and sensed temperature is significant.
After turning power off, measure the resistance.
Measure the resistance between the
NA8-③(BL) and NA8-②(YL) Does the
resistance measured match the temperature
of the thermistor in the chart? (Use room
termistor is warm from running the dryer.)
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. [KΩ]
Air TEMP. [°F( )]
18.0
90°F (32°C)
14.2
100°F (38°C)
11.7
110°F (43°C)
9.3
120°F (49°C)
NO
YES
RES. [KΩ]
7.7
6.2
5.2
4.3
34
• Check if control
and the 8 Pin
connector are
YES
properly
connected.
• Replace
controller
• Replace
NO
thermistor.
RES. [KΩ]
Air TEMP. [°F( )]
130°F (54
)
140°F (60
)
150°F (66
)
160°F (71
)
2.9
3.0
2.5
2.2
Hide quick links:
Advertisement
Table of Contents
