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6-12
n
Whirlpool 2014 CABRIO
®
Direct Drive Washer
TESTING
For Service Technician Use Only
TEST #5: Temperature Thermistor
This test checks valves, main control, temperature thermistor,
and wiring.
1. Check the cold valve by performing Cold Valve test under
Service Load Control Mode in Service Diagnostic Mode on
page 5-5.
¾
If cold water is being dispensed, proceed to step 2.
¾
If hot water is being dispensed, verify proper hose
connection.
2. Check the hot valve by performing Hot Valve test under
Service Load Control Mode in Service Diagnostic Mode on
page 5-5.
¾
If hot water is being dispensed, proceed to step 3.
¾
If cold water is being dispensed, ensure that household
hot water is present.
3. Unplug washer or disconnect power.
4. Remove console to access main control.
5. Remove connector J2 from the main control. With an
ohmmeter, measure the resistance of the temperature
thermistor between pins J2-1 and J2-2. Verify that the
approximate resistance, shown in the table below, is
within ambient temperature range.
THERMISTOR RESISTANCE
Approx. Temperature
Approx. Resistance
F°
C°
(K
W
)
32
0
163
41
5
127
50
10
100
59
15
79
68
20
62
77
25
50
86
30
40
95
35
33
104
40
27
113
45
22
122
50
18
131
55
15
140
60
12
149
65
10
¾
If the resistance is within the range shown in the table,
go to step 6.
¾
If the resistance is infinite or close to zero, replace the
valve assembly.
NOTE:
Most thermistor errors are a result of the
resistance being out of range. If the temperature
thermistor malfunctions, the washer will default to pre-
programmed wash settings.
6. If the thermistor is good, replace main control and
perform Service Diagnostics (see page 5-6) to verify repair.
Figure 1
MAIN BOARD
THERMISTOR
MAIN BOARD
J2-1
J2-2
T
VALVE THERMISTOR
RTN (VSS)
BK
BK
TEMPERATURE THERMISTOR
77°F (25°C) = 50k
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Failure to do so can result in death or
electrical shock.
Replace all parts and panels before operating.