Removing The Appliance Control Unit (Acu) - Whirlpool WED9500E SERIES Service Manual

Removing the Appliance Control Unit (ACU)

WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or
electrical shock.
To Remove the Appliance Control Unit (ACU)
IMPORTANT: Electrostatic Discharge (ESD) Sensitive Device.
Failure to follow the ESD precautions outlined at the
beginning of Section 3 "Testing" may destroy, damage, or
weaken the main control assembly.
1. Unplug dryer or disconnect power.
2. Perform the procedures on page 4-3, "Removing the Top
Panel" prior to performing the following steps.
3. Disconnect all connectors from the ACU (see Figure 1).
4. Using a 1/4" nut driver, remove the one (1) hex-head
screw securing the ACU to the control bracket (location
circled in Figure 2).
5. Reach under control bracket and locate release tab.
Depress tab and slide ACU towards front of dryer to
disengage from bracket. Remove Appliance Control Unit.
Depress tab under bracket and then slide ACU towards front of dryer.
Figure 2 - Appliance Control Board
J8-5 OPEN
J8-4 TAN DOOR SWITCH
J8-3 WHT NEUTRAL
J8-2 G/Y CHASSIS GND
J8-1 RED WATER VALVE
J14-4 BLK
(ON SOME MODELS) J14-5 BLK
J14-6 R/W
Appliance Control Unit (Figure 1)
Heater Relay #1
L1 – BLK
(Gas & Elect.)
Heater (E) – VLT
K2
Heater (G) – RED
K1
Heater Relay #2
(Elect. Only)
K3
L1 – BLK
Heater – VLT
J8
Figure 2 - ACU Connectors & Pinouts
Connector Component(s)
Heater Relay #1 Gas & Electric Heaters
Heater Relay #2 Electric Heater Only
J2 User Interface
J6 Drum LED
J8 Water Valve
Door Switch
Neutral & GND
J9 L1
Motor
J13 Moisture Sensor
J14 Inlet Thermistor
Outlet Thermistor
DO NOT REMOVE OR DESTROY
Model (Gas)
J23 Rear Moisture Sensor (some models)
Whirlpool & Maytag 9.2 Cu. Ft. Steam Dryer
J13-1 BLK
J13-2 RED
J14 – THERMISTORS
MODEL (GAS) J14-1 RED
COMPONENT ACCESS
MODEL RTN (GAS) J14-2 RED
OUTLET THERMISTOR J14-3 R/W
J23 – REAR MOISTURE SENSOR
(on some models)
J23-1 Y/R
J23-2 YEL
J9
Motor Relay
J6
MOISTURE SENSOR
MOISTURE SENSOR
INLET THERMISTOR
INLET THERMISTOR
OUTLET THERMISTOR
MOISTURE SENSOR
MOISTURE SENSOR
J23
(on some
models)
J13
J2
J14
4-5
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