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Error Code

Kenmore Range 4d/51 Error Code

Plain-language guidance for Kenmore code 4d/51 on Range — symptoms, safe checks, and when to call a technician.

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At a glance

Error code overview

A plain-language snapshot of 4d/51 for Kenmore Range — confirm the model series before you act.

Lena Hart Written by Lena Hart Appliance Repair Content Specialist Published October 20, 2026

Content status Verified

Error code 4d/51
Appliance Range
Quick answer

4d/51 is a door-versus-lock switch disagreement code on the Kenmore 665 model freestanding range.

Model compatibility

Kenmore reuses codes across series and model years, so 4d/51 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Plain language

What this code means

Oven door and oven door lock switches disagree.

Meaning of 4d/51

A 4d/51 display means the oven door switch and the door lock switch do not agree with each other. On the Kenmore 665 model freestanding range this pair sits in one manual entry with 4d/11, 4d/12 and 4d/52.

How the manual sorts it out

Watch the oven light while opening and closing the door. A light that fails to follow the door means the door switch is replaced. A light that works leads to the next step: disconnect power or unplug the range, reconnect any loose wires on the lock assembly’s wire harness, replace the harness if damaged, and replace the lock assembly when it is visibly damaged.

Similar codes

  • 4d/52: shares the disagreement meaning
  • 4d/11: another entry for the same condition
  • 9d/21: oven door lock assembly defective
  • 3d/22: defective oven temperature sensor

Range repair help in Los Angeles

For 4d/51 on a Kenmore range in Los Angeles, phone (310) 554-8899. Tell the person on the line the code shown, the model number from the range and any steps already attempted. The Kenmore range service page has the wider picture.

Source: Sears PartsDirect – Kenmore 665 model freestanding range error codes (slash format)

Caution

Safety warning

Important safety warning

Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.

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(310) 554-8899
Phone (310) 554-8899
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