Samsung
DMR78AHB/XAA-0000
Dishwasher
Samsung DMR78AHB/XAA-0000 — Error Code UC
Samsung DMR78AHB/XAA-0000 error code UC: Unbalanced — racks incorrectly loaded (specific models).
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Methodology: We combine manufacturer references with recurring service patterns, then review for safe, step-by-step repair guidance.
Sources: Manufacturer fault-code sheets, service manuals, and recurring field-repair patterns.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
Looking for the full diagnosis and repair guide? View complete Samsung Dishwasher error code UC guide →
Repair guidance: the symptoms and steps below come from the canonical Samsung Dishwasher UC guide and apply to DMR78AHB/XAA-0000 unless your manual says otherwise.
Symptoms on DMR78AHB/XAA-0000
- ⚠️ Error code on display
- ⚠️ Cycle not completing
- ⚠️ Machine stopping unexpectedly
How to Fix Error UC on DMR78AHB/XAA-0000
- 1 Unplug the dishwasher for 60 seconds then plug back in — this resets the control board and clears many temporary faults
- 2 If the error persists after basic troubleshooting, contact a qualified appliance technician
Questions People Also Ask for Error UC
What does Samsung Dishwasher error code UC mean? ▼
Error code UC on a Samsung Dishwasher means: Unbalanced — racks incorrectly loaded (specific models). The appliance detected this condition and has stopped or limited operation to prevent further damage.
How do I fix Samsung Dishwasher error code UC? ▼
First, unplug the dishwasher for 60 seconds to reset the control board. If error UC returns, the root cause (unbalanced — racks incorrectly loaded (specific models)) needs to be addressed — check connections, filters, and hoses before calling a technician.
Is it safe to use my Samsung Dishwasher with error code UC? ▼
It depends on the cause. Most UC errors mean the appliance has stopped itself as a safety measure. Check the 'Should I unplug it?' section above for specific guidance on this error.