JennAir Wall Oven Code 3d12: temperature sensor check

What 3d12 means

JennAir wall ovens like the JJW2427DS and JJW8530DDS show 3d12 when there may be a problem with the oven temperature sensor, the control, or the wiring. It sits next to 3d11 in the list, and the suspects are the same. You will see 3d12 on the screen and the oven may shut off or run cold. The preheat bar may freeze partway across the screen.

Common causes of 3d12

Temperature sensor failing
Oven control with a sensing problem
Wiring to the sensor loose

✓ One safe check you can try

1. Cancel the cycle and let the oven cool. 2. Remove any foil lining from the oven floor and walls. 3. Cut power at the breaker for two minutes, then restore. 4. If 3d12 comes back, do not keep trying. Call us.

! Why to stop there

Foil on the oven floor can also upset temperature readings, so ruling it out helps.
Sensor testing needs a meter and cavity access.
The price is stated before work, and our repair is warranted for 30 days.

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 Wall Oven codes

FC E9JennAir Wall Oven Code FC E9: Wi-Fi power module wiring Feature Not AvailableJennAir Wall Oven Message "Feature Not Available": Follow the Prompt on the Display Flashing Time, Clock, 12:00, Power Loss or Enter TimeJennAir Wall Oven Display Flashing Time or 12:00: Set the clock after power loss Locked, Lock or LocJennAir Wall Oven Display Locked, Lock or Loc: Controls and door are locked Press Cancel to ResetJennAir Wall Oven Message "Press Cancel to Reset": Clear and power cycle Probe or Insert ProbeJennAir Wall Oven Display Probe or Insert Probe: Meat probe needed PUSH or PSHJennAir Wall Oven Display PUSH or PSH: Press start Sabbath, Sab, 5Ab, or 5A7JennAir Wall Oven Display Sabbath, Sab, 5Ab or 5A7: Sabbath mode is on

3d123d12 questions

What does 3d12 look like in use?

The display shows the code, and the oven may stop heating or fail to reach temperature. Sometimes it starts a bake and quits partway. Because it may happen during a long roast, the first sign can be a cold oven mid-recipe.

Could the wrong rack position cause 3d12?

A pan touching the sensor probe can disturb the reading, so keep cookware away from the back wall. A code that persists with a clear cavity still needs testing.

Is 3d12 expensive to fix?

Sensors are usually a modest part, but the total depends on whether the control or wiring is involved. You get a written price before we begin.