Wolf M Series Code 1C21: Both upper bake element DLbs open

What 1C21 means

On Wolf M Series wall ovens, code 1C21 says that both DLB circuits on the upper oven's bake elements are read as open at the same time. The control sees no path to either bake element. You see the code and the upper oven may not heat from the bottom at all. Owners tend to notice that part of the oven simply stays cool.

Common causes of 1C21

Both upper bake element DLB circuits are open on the board
A shared wiring or connector problem feeding both bake elements
A failed element on the circuit

✓ One safe check you can try

1. Switch the oven off and leave it until fully cool. 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 the code comes back, stop using the oven and call us. Do not reach behind the oven or handle its wiring.

! Why to stop there

A wrong guess means a second visit and a second charge, so we measure first.
On this code the cause may also be a shared wiring or connector problem feeding both bake elements, or a failed element on the circuit, 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 1D21Wolf M Series Code 1D21: Both upper broil element DLbs open 3721Wolf M Series Code 3721: Upper door lock switch position invalid 2030Wolf M Series Code 2030: Relay board ambient thermistor circuit

1C211C21 questions

Why does 1C21 mention both bake elements?

This code covers both upper bake element DLB circuits reading open together, which hints at a shared cause such as a common connection or the relay board. One failed element would normally give a single-element code, so we trace the shared path.

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.