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Error code · Range

Door Signal Concern: Whirlpool Range Code 4D12

4D12 on a Whirlpool freestanding or slide-in range, gas or electric, for instance the WFG525S0HV, concerns the oven door latch assembly, the door switch and the wiring they share. The control keeps checking that the door…

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Code
4d12
Appliance
Range
Brand
Whirlpool
Warranty
30-day workmanship

What 4d12 means

4D12 on a Whirlpool freestanding or slide-in range, gas or electric, for instance the WFG525S0HV, concerns the oven door latch assembly, the door switch and the wiring they share. The control keeps checking that the door state makes sense. When it does not, you may find the oven will not begin baking, the cycle stops, or 4D12 appears on the display without warning.

Common causes of 4d12

  • The oven door latch assembly
  • The door switch
  • Wiring between the latch, switch and control
✓ One safe check you can try

1. Shut the oven door properly and make sure nothing blocks it. 2. Switch the range off at its breaker for a minute. 3. Switch it back on. 4. See whether 4D12 returns within a minute. 5. Start a short bake to check normal operation.

! Why to stop there
  • The code names a group of parts, not a single one.
  • We look at how the latch moves and what the switch signals as the door closes.
  • You receive a written price first, and the repair has our 30-day workmanship warranty.
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
→Same appliance

Other Range codes

Sabbath, Sab, 5Ab, or 5A7Whirlpool Range Sabbath, Sab, 5Ab or 5A7: Canceling the Mode PUSH or PSHWhirlpool Range PUSH or PSH: Start Was Not Pressed Sabbath ModeWhirlpool Range Sabbath Mode: Why the Oven Stays On FEE6Whirlpool Range Code FEE6: Bake Element Circuit FEE7Whirlpool Range Code FEE7: Checking the Broil Element Circuit FEE8Whirlpool Range Code FEE8: Oven Reset, No Part Named Indicator FlashingWhirlpool Range Indicator Flashing: Stuck Key or Control Setting Indicator or Hot Light OnWhirlpool Range Hot Light On: Control Still On or Surface Hot
4d124d12 questions
Is 4D12 a self-clean message?

The code names the door parts and wiring but not one particular cycle, so we test the whole door circuit instead of guessing. That saves you from paying for an unneeded part.

Why did the oven stop mid-bake?

If the door signal changes during a cycle, the control may stop to be safe. A worn latch or switch can cause this. That stop is the control playing it safe, not a random shutdown.

Do you repair older ranges with latch trouble?

Yes. Latch and switch repairs are common on ranges of any age, and we say plainly if the cost is not worth it. Many of these repairs are modest compared with a new range.

Book a visit

Still seeing 4d12?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 589-6107