JennAir Wall Oven Code 4d31: oven control and wiring

What 4d31 means

JennAir built-in wall ovens including the JJW2830LL and JJW2427DS display 4d31 when there may be a problem with the oven control or its wiring. This belongs with the other control-board codes and not with the door or cooling fan codes that begin with 4d. The display shows 4d31, and the oven may stop heating. The same code is listed for microwave combination ovens.

Common causes of 4d31

Oven control not working correctly
Wiring problem connected to the control

✓ One safe check you can try

1. Hit Cancel once, then let the oven rest for a moment. 2. Turn the oven breaker off for two minutes, then restore it. 3. See whether the clock can be set. 4. If 4d31 comes back at the next cycle, leave the oven off and call us.

! Why to stop there

It is easy to confuse 4d31 with the nearby door and fan codes, but the repair is different.
Control boards need testing with the power on, which owners should not do.
The price is given in writing first, and the 30-day workmanship warranty applies.

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

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 FC E6JennAir Wall Oven Code FC E6: Wi-Fi power module FC E7JennAir Wall Oven Code FC E7: Oven did not connect to router FC E8JennAir Wall Oven Code FC E8: Registration error 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

4d314d31 questions

4d31 starts with the same digits as the door codes. Is it a door problem?

No. The listed meaning is the oven control and its wiring. The door and fan codes in this group have their own entries, so check the exact characters on your display.

Does 4d31 mean the oven is unsafe?

It means the control wants attention. The oven should not be used until it is tested, but it is not an emergency like a gas smell.

What does 4d31 cost to fix?

It depends on whether a connector, harness or the control itself is the cause. We tell you the price in writing after testing and before any work.