Drive Motor Ohm Test; Pump Motor Continuity Test; Transformer Ohm Test; Water Temperature Sensor - Whirlpool CHW9050 Service Manual

PUMP MOTOR
CONTINUITY TEST
Pins
1 to 2 Normal = Approx. 12.3 ohms
Abnormal = Infinity or 0 ohms

DRIVE MOTOR OHM TEST

1. Unplug washer or disconnect power.
2. Disconnect the wire harness from the motor
and measure the resistance of the motor.
Use the following table:
Pins
1 To 2 Normal = Approx. 6.45 ohms
2 to 3
1 to 3
Result
Result
Abnormal = Infinity

TRANSFORMER OHM TEST

Primary 30-35 ohms
Blue to blue 1 ohm
White to white 2 ohms
Yellow to blue 0.5 ohms
WATER TEMPERATURE
1. Unplug washer or disconnect power.
2. Disconnect the wire harness from the
water temperature sensor and measure the
resistance of the sensor. Use the following
table. An abnormal condition is an open
circuit (infinite Ω). This reading can be taken
from the cable attached to the CCU terminal
TH2.
Temperature
32°F (0°C)
86°F (30°C)
104°F (40°C)
122°F (50°C)
140°F (60°C)
158°F (71°C)
203°F (96°C)
6-13
SENSOR
Results
35.9 kΩ
9.7 kΩ
6.6 kΩ
4.6 kΩ
3.2 kΩ
2.3 kΩ
1 kΩ