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Error code · Range

Whirlpool Range Code 3D12: Heat Sensing Alert for the Oven

A Whirlpool freestanding or slide-in range, gas or electric, such as the WFG515S0ES, may flash 3D12 when the oven's heat sensing looks wrong to the control. The cause could be the oven temperature sensor, the control…

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Code
3d12
Appliance
Range
Brand
Whirlpool
Warranty
30-day workmanship

What 3d12 means

A Whirlpool freestanding or slide-in range, gas or electric, such as the WFG515S0ES, may flash 3D12 when the oven's heat sensing looks wrong to the control. The cause could be the oven temperature sensor, the control or the wiring running between them. Often the first sign is a bake that never gets hot enough, or a cycle that quits, followed by 3D12 in the display.

Common causes of 3d12

  • The oven temperature sensor
  • The control board
  • Harness wiring to the sensor
✓ One safe check you can try

1. Switch the range off at the breaker for a full minute. 2. Switch it on again. 3. Look the screen over a minute later. 4. Run a short bake at a modest temperature. 5. If 3D12 comes back, let the oven stay unused until we have looked at it.

! Why to stop there
  • The reset does not reveal where in the sensing circuit the trouble sits.
  • We measure the circuit with the range disconnected and compare it to what the control should see.
  • We write the price down first, and our repair carries a 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

PUSH or PSHWhirlpool Range PUSH or PSH: Start Was Not Pressed Sabbath ModeWhirlpool Range Sabbath Mode: Why the Oven Stays On Sabbath, Sab, 5Ab, or 5A7Whirlpool Range Sabbath, Sab, 5Ab or 5A7: Canceling the Mode 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 Lo or PreWhirlpool Range Lo or Pre: Low Temperature and Preheating
3d123d12 questions
Does 3D12 differ from 3D11?

They are separate codes within one group and point to the same three places. Which exact code shows helps us plan the order of checks.

What if the oven only gets lukewarm?

A weak or missing temperature reading can lead the control to hold back heat. We read the sensor to confirm this before replacing any part.

Will you tell me if the oven is not worth repairing?

Yes. Plenty of older ranges are worth the repair, but we will say honestly when the cost goes past the oven's value. That comparison is part of our written estimate.

Book a visit

Still seeing 3d12?

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

(713) 589-6107