Service Manual
Table Of Contents
- Smart All-In-One Washer/Dryer
- Table of Contents
- Section 1: General Information
- Washer & Dryer Safety
- Introduction
- Features
- Options
- Accessories
- Control Panel & Features
- Control Panel - Tools
- Load & Go Bulk Dispenser
- Theory of Operation - Dry Cycle
- Product Specifications
- Wiring Diagram & Model/Serial Number Location
- Model & Serial Number Nomenclature
- All-In-One Washer/Dryer Maintenance
- Cleaning the Drain Pump Filter/Draining Residual Water
- How to Manually Open a Locked Door
- Section 2: Diagnostics & Troubleshooting
- Section 3: Component Testing
- Component Testing Safety
- Wiring Diagram
- TEST #1: Appliance Control Unit (ACU) Power Check
- TEST #2: Human-Machine Interface (HMI)
- TEST #3: Motor Circuit
- TEST #4: Door Lock System
- TEST #5: Inlet Valve
- TEST #6: Pressure Switch
- TEST #7: Drain/Recirculation Pump
- TEST #8: Wash Heating Element
- TEST #9: Wash Temperature Sensor
- TEST #10a: Dispenser Sensing
- TEST #10b: Dispenser Metering Pumps
- TEST #11: Supply Connections
- TEST #12a: Dry Heating Element
- TEST #12b: Dry Temperature Sensor
- TEST #13: Dry Fan Motor
- Section 4: Component Access
- Removing the Door Assembly
- Removing the Top Panel
- Replacing the Human-Machine Interface (HMI)
- Removing the Front Panel & Bulkhead
- Removing the Rear Access Panel
- Removing the Inlet Valve Assembly
- Removing the Pressure Switch
- Removing the Metering Pumps
- Removing the Detergent Dispenser
- Removing the Dryer Heating Channel Assembly
- Removing the Condenser Duct Assembly
- Removing the RFI Filter
- Removing the Door Lock Assembly
- Removing the Appliance Control Unit (ACU)
- Removing the Motor Control Unit (MCU)
- Removing the Heater & Thermistor
- Removing the Drain & Recirculation Pumps
- Removing the Direct Drive Motor
- Removing the Tub Assembly
- Section 5: Connectivity
- Product Specifications & Warranty Information Sources
COMPONENT TESTING
Whirlpool Smart All-In-One Washer & Dryer
n
3-11
L1
ACU
DRAIN/RECIRCULATION PUMP
J1-2
ACU
J6-2
J4-5
DRAIN PUMP
P
1
2
L2
J1-1
RECIRCULATION PUMP
J22-1
J22-2
P
1
2
RFI-L
RFI-N
Lorem ipsum
For Service Technician Use Only
TEST #7: Drain/Recirculaon Pump
Perform the following checks if washer/dryer does not drain.
1. Check for obstrucons in the usual areas. Clean and then
perform step 2.
2. Check the pump and electrical connecons by performing
the Service Diagnosc Mode Tests on page 2-3. The following
procedures assume that this step was unsuccessful.
3. Unplug washer/dryer or disconnect power.
4.
Gently lay washer/dryer on its right side to access the
ACU. Remove AC shield and ACU cover.
5. Visually check that the J4, J6, and/or J22 connector is
inserted all the way into the ACU.
¾ If visual check passes, go to step 6.
¾ If connectors are not inserted properly, reconnect J4,
J6, and/or J22 and repeat step 2.
6. Drain Pump: Remove connectors J4 and J6 from the ACU.
With an ohmmeter, measure the resistance across J4, pin
5 and J6, pin 2. (Connue to step 7.)
Recirculaon Pump: Remove connector J22 from the
ACU. With an ohmmeter, measure the resistance across
J22, pin 1 and J22, pin 2. (Connue to step 7.)
7. Resistance should be: Drain Pump (45–65 Ω) and
Recirculaon Pump (150–190 Ω) when at room temperature.
¾ If the reading is innite (open), go to step 8.
¾ If the reading is correct, go to step 12.
8. Remove the rear panel to access drain & recirculaon
pump. Verify that pump, pump lter, drain hose, and air
trap are free from obstrucons.
9. Visually check the electrical connecons at the drain and
recirculaon pumps.
¾ If visual check passes, go to step 10.
¾ If connecons are loose, reconnect the electrical
connecons and repeat step 2.
10. With an ohmmeter, check harness for connuity between
the pump assembly and ACU.
¾ If there is connuity, go to step 11.
¾ If there is no connuity, replace the lower machine
harness and repeat step 2.
11. With an ohmmeter, measure the resistance across the
two drain and recirculaon pump terminals. Resistance
should be: Drain Pump (45–65 Ω) and Recirculaon Pump
(150–190 Ω).
¾ If the reading is far out of range or open, replace the
pump assembly.
¾ If the reading is correct, go to step 12.
12. If the preceding steps did not correct the drain or
recirculaon problem, replace the ACU.
¾ Unplug washer/dryer or disconnect power.
¾ Replace the ACU.
¾ Reassemble all parts and panels.
¾ Perform the Service Diagnosc Mode Tests on page 2-3
to verify repair.
DRAIN/RECIRCULATION PUMP
Figure 1 - Drain/Recirculation Pump
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.
Figure 2 - Drain/Recirculation Pump Strip Circuit
45-65 W
Drain Filter
Drain
Pump
Recirculaon
Pump
150-190 W