Error Code: DU Difficulty: Easy
Problem: The lid is unable to unlock.
How to Fix DU Error (Step-by-Step)
- Ensure the cycle is complete and the ‘Lid Locked’ light is off.
- Wait for a few minutes to allow the lock mechanism to disengage.
- Gently try to lift the lid without forcing it and confirm the error stays cleared during a full test cycle.
- Unplug the appliance from the power outlet for one minute.
- Plug the appliance back in and listen for the lock to disengage.
- If the lid remains locked, there may be an issue with the lock assembly requiring professional service.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
What to Check Next on This Amana Refrigerator
Focused repair path: refrigerator door, airflow, thermistor, defrost, fan, compressor start, and control checks. Do not treat a returning fault as a reset-only problem; use the point in the cycle where the fault appears to choose the next check.
- Confirm the doors seal, the interior lights shut off, and vents are not blocked before replacing sensors or boards.
- Look for frost pattern clues, stalled fans, warm compartments, water or ice symptoms, and recent power interruptions.
- For temperature faults, inspect the evaporator fan, thermistor, defrost path, damper, condenser airflow, and board connectors.
- Use the complete Amana refrigerator model number before ordering sensors, fans, boards, dampers, valves, or start components.
Check, inspect, clean, test, measure, remove, reconnect, clear, and replace parts only when the symptom supports that path. If these checks point toward a part, verify the complete Amana model number from the appliance tag before ordering. Similar error wording can use different valves, sensors, pumps, motors, heaters, locks, switches, fans, or control boards depending on the exact model.
Recommended Parts to Check
No exact official OEM part number is listed here because the correct Amana refrigerator part can vary by complete model number. These are targeted part-category searches, not universal fit claims.
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Whirlpool refrigerator thermistorCommon replacement category: Temperature sensor / thermistorFit note: Exact OEM part number varies by complete Amana refrigerator model number. Confirm compatibility before buying.Why this category can matter: temperature, cooling, or alarm symptoms after vent and setting checks.
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Whirlpool refrigerator evaporator fan motorCommon replacement category: Evaporator fan motorFit note: Exact OEM part number varies by complete Amana refrigerator model number. Confirm compatibility before buying.Why this category can matter: airflow and uneven-cooling symptoms after frost and obstruction checks.
Search Amazon for Whirlpool refrigerator evaporator fan motor
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Whirlpool refrigerator control boardCommon replacement category: Electronic control boardFit note: Exact OEM part number varies by complete Amana refrigerator model number. Confirm compatibility before buying.Why this category can matter: repeating electronic or cooling-control faults after power and wiring checks.
Before ordering: match the part to the complete Amana refrigerator model number on the appliance tag.
When It’s Better to Replace Than Repair
Refrigerator repairs can become costly when sealed-system, control, defrost, fan, or ice-maker issues repeat.
Confirm width, height, depth, door swing, counter-depth needs, water line, and delivery path before ordering.
For repair parts, verify exact fit with the full refrigerator model number before buying; these links are general replacement-appliance shopping options.
- [OK]Water inlet valve, ice maker, or fan failures keep returning
- [OK]Defrost heater, thermostat, or sensor faults stack up
- [OK]Compressor or sealed-system repair is not economical
- [OK]Food-loss risk is becoming a pattern
Recommended Refrigerator Replacement Options
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Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
More options (for a better recommendation)
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Amana error codes: Amana Error Codes
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