Whirlpool Dishwasher Error UO
⚡ Quick Answer: The Whirlpool Dishwasher error code UO typically indicates a water supply issue, often resulting in the appliance failing to fill properly. This may l... ✅ DIY Fixable
What Does Error UO Mean?
The Whirlpool Dishwasher error code UO typically indicates a water supply issue, often resulting in the appliance failing to fill properly. This may lead to unusual sounds during operation or a complete halt. If you encounter this error, it is essential to verify the model-specific error code and consult Whirlpool support for further assistance.
Possible Causes
- Water inlet valve failure
- Clogged water supply line
- Faulty float switch
How to Fix Error UO
DIY Fix Verify model‑specific error code and consult Whirlpool support
- Check the exact display format (lights, letters, numbers) against your specific Whirlpool dishwasher model’s manual or error code list.
- Search the exact model number on Whirlpool’s official support site to find documented error interpretations.
- If the code persists and is not recognized, note any simultaneous symptoms (no start, pauses, unusual noises, lights flashing) to provide context to support.
Technician Only Contact Whirlpool professional support for an undocumented code
- Provide the model and serial number to Whirlpool support and describe the exact display and symptoms.
- Have the technician run diagnostics with official tools; undocumented codes might require internal diagnostic mode entry.
- If needed, schedule a service visit to inspect control board communication and sensors.
- If the error continues after basic verification and reset attempts.
- If the dishwasher is non‑functional and no documented meaning can be found in official Whirlpool sources.
Next step
Choose the next step for UO
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Water Inlet Valve
Controls the flow of hot and cold water into the appliance.
- Typical part-only price
- $25 - $60
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Float Switch
Detects the maximum water level to prevent overflow and potential flooding.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 15W |
|---|---|
| component | Water Inlet Valve |
| resistance | 3-5 ohms |
| part_number | W10882836 |
| voltage_rating | 120V AC |
Common Questions
What does UO error mean on Whirlpool Dishwasher?
UO error indicates a potential water supply issue, often leading to failure in filling.
Can I fix Whirlpool Dishwasher UO error myself?
Yes, verify the model-specific error code and consult Whirlpool support for troubleshooting.
How much does it cost to fix UO error?
Repair costs vary by model and region; consult a technician for an estimate.
When should I call a technician for UO?
Call a technician if the error persists after verification and reset attempts.
Sources & References
Data last verified: 2026-07-22
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