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
DIAGNOSTICS & TROUBLESHOOTING
Whirlpool Smart All-In-One Washer & Dryer
n
2-7
For Service Technician Use Only
Connued on following page . . .
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.
Fault codes are displayed by showing F#E#. The F# indicates
the suspect System/Category. The E# indicates the suspect
Component system.
The fault codes below may be indicated under various
condions and can be accessed through Service Diagnoscs.
Load in drum during Clean Washer cycle Remove load and re-start Clean Washer cycle.
Oversuds Excessive suds in washer. Washer is running a suds reducon
roune. If the washer is unable to correct the problem, this
may indicate:
• Not using HE detergent.
• Excessive detergent usage.
• Check pressure hose connecon from tub to main
control. Is hose pinched, kinked, plugged, or leaking air.
High temp error, dry cycle, no air ow Detected dryer fan not funconing properly. Try recycling
power to washer/dryer.
• Check thermal cut-o. See TEST #12a: Dry Heang
Element, pg. 3-19.
• Check dry NTC. See TEST #12b: Dry Temperature Sensor
(NTC), pg. 3-20.
• Check dry fan motor. See TEST #13: Dry Fan Motor, pg.
3-21.
High temp error, wash cycle Washer water too hot. May have water inlet hose
connected to hot water faucet.
• Make sure inlet hose is connected to a cold water faucet.
• Check wash heat element. See TEST #8: Wash Heang
Element, pg. 3-12.
• Check wash temperature sensor. See TEST #9: Wash
Temperature Sensor, pg. 3-13.
O Balance Load Load could be unbalanced or too large. Avoid ghtly packing
the load. Avoid washing single items.
MCU over- or under-voltage error MCU malfuncon, voltage out of range.
• See TEST #3: Motor Circuit, page 3-7.
Main relay open or shorted Main relay issue. Try recycling power to washer/dryer.
• See TEST #1: ACU Power Check, pg. 3-4.
Pressure switch signal missing or out of range See TEST #6: Pressure Switch, pg. -10.
Wash NTC open or shorted See TEST #9: Wash Temperature Sensor, pg. 3-13.
See TEST #12b: Dry Thermistor Sensor, pg. 3-20.