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Error code reference

Kenmore Dishwasher Error Code Uo

General malfunction error code displayed when the dishwasher malfunctions or gives poor performance.

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What the Uo error code actually means

The Uo code means your Kenmore dishwasher has detected something is wrong but the problem is too general to point to one specific part. Your dishwasher may not be cleaning well, may stop mid-cycle, or may simply not be performing as it should. Kenmore recommends calling their customer support line to get help diagnosing and fixing the issue.

Diagnostic procedure

The full Uo procedure

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1
First diagnostic step
Call the Kenmore Customer Care Center at 1-800-4MY-HOME for troubleshooting assistance and/or locating an authorized service technician.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of Uo

Ranked by how often they cause this code
  1. 1Control Board Fault
  2. 2Poor Wash Performance
  3. 3Water Supply Issue
  4. 4Sensor Malfunction
  5. 5Intermittent Wiring or Connection Problem

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Questions people ask about Uo

What does Uo mean on a Kenmore dishwasher?
Uo is a general malfunction error code indicating that the dishwasher has experienced a fault or a period of poor performance that does not correspond to a more specific error. The control board uses this code as a catch-all when it detects something is wrong but cannot isolate it to a single component. Kenmore recommends contacting their Customer Care Center at 1-800-4MY-HOME for further guidance.
Is it safe to keep using my dishwasher when the Uo code is showing?
Running the dishwasher with an active Uo code is generally not recommended until the root cause is identified. Continuing to operate a malfunctioning appliance can worsen the underlying problem or result in unsatisfactory wash results. If you notice any water leaks, burning smells, or electrical irregularities alongside the code, stop use immediately and contact a technician.
How much does it cost to repair a Kenmore dishwasher showing a Uo error?
Repair costs vary widely depending on the root cause. Simple fixes like clearing a clogged spray arm or adjusting a water supply valve may cost little to nothing, while replacing a faulty control board or sensor can range from roughly $150 to $400 or more including parts and labor. Getting a diagnostic assessment from an authorized technician will provide a more accurate estimate for your specific situation.
Can I fix the Uo error code myself?
Some underlying causes of Uo, such as a clogged spray arm, restricted water supply valve, or basic maintenance issues, can be addressed without professional help. However, because Uo is a non-specific code, pinpointing the exact problem often requires diagnostic tools and technical knowledge. If basic checks do not resolve the issue, contacting Kenmore support or scheduling a service visit is the recommended path.
Will resetting the dishwasher clear the Uo error code?
A power reset, typically done by unplugging the dishwasher or turning off the circuit breaker for a few minutes, may temporarily clear the Uo code. However, if the underlying fault is still present, the code is likely to return during or after the next cycle. A reset alone does not fix the root cause and should only be used as an initial troubleshooting step.

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