Wolf M Series Code 1231: Upper bake element DLB open

What 1231 means

This M Series code means the DLB circuit for the upper oven's bake element is read as open on Wolf wall ovens. The lower oven reports 1232. The control sees no completed path through the DLB when it calls for bake heat. Owners see the code, and the upper oven may not bake or may stop heating mid-cycle. Heating may drop out partway through a cycle, which is easy to mistake for a thermostat problem.

Common causes of 1231

The upper bake element DLB circuit is open on the board
A broken or loose connector in the bake element wiring
The bake element has opened internally

✓ One safe check you can try

1. Turn the oven off and let it cool completely. 2. Switch the breaker off for one minute, then on again. 3. Try a short bake or broil to see whether the code returns. 4. If it does, stop and call us. Do not reach behind the oven or handle its wiring.

! Why to stop there

An open DLB circuit can come from the board, a connector, or the element, and only testing separates them.
On this code the cause may also be a broken or loose connector in the bake element wiring, or the bake element has opened internally, so we rule each out before we quote.

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

0121Wolf M Series Oven Code 0121: upper right convection relay shorted 0221Wolf M Series Code 0221: Upper Bake Element DLB Shorted 0321Wolf M Series Oven Code 0321: Broil Relay Shorted on the Upper Element 0421Wolf M Series Code 0421: upper left convection relay shorted 0630Wolf M Series Oven Code 0630: Auxiliary DLB Shorted 2820Wolf M Series Code 2820: Relay board door lock relay circuit 0021Wolf M Series Code 0021: Bake Element Relay Shorted 2A30Wolf M Series Code 2A30: Microprocessor communication failure

12311231 questions

Will 1231 clear after the oven cools?

Sometimes a code clears after a power reset, but 1231 is an open DLB circuit on the upper bake element, so it usually returns when baking starts again. If it does, leave the oven off and call us for testing.

Can I keep baking while this DLB code shows?

It depends on the code. Heating on the affected circuit will be missing or unreliable, so results suffer. The oven will not run away from this, but we would limit use and book a test soon.

What is the price for a DLB repair?

We test first, then give you a written price before any work. The result might be a connector, a board, or an element, and we say which. Repairs carry our 30-day workmanship warranty.