Wolf M Series Code 1831: Upper door lock relay open

What 1831 means

Wolf M Series wall ovens log 1831 when the motorized door lock (MDL) relay for the upper oven is read as open, so the lock circuit is not completing when the control calls for it. The lower oven reports 1832. You see the code, and the upper door may not lock for a cleaning cycle. A door that behaves differently from normal is the first thing most owners notice.

Common causes of 1831

The upper MDL relay is open on the relay board
A loose connector or wire in the upper lock circuit
The door lock motor assembly has failed

✓ One safe check you can try

1. Let the oven cool completely, because heat keeps the lock closed. 2. Check that nothing blocks the door gasket or latch area. 3. Reset power at the breaker for about a minute. 4. Never force the door or open the control panel. If the code comes back, we handle the lock.

! Why to stop there

The relay board and lock motor show up alike, so testing is needed before buying a part.
On this code the cause may also be a loose connector or wire in the upper lock circuit, or the door lock motor assembly has failed, 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 2631Wolf M Series Code 2631: Relay board door switch circuit 3D20Wolf M Series Code 3D20: Input voltage frequency error 2720Wolf M Series Code 2720: Element or door lock watchdog failure

18311831 questions

Why will the upper oven not start a clean cycle with 1831?

A clean cycle needs the door locked, and 1831 says the upper lock relay is open. The control cannot finish the lock, so the cycle will not run. Close the door fully and try once. If the code returns, we repair it.

Is it safe to run a clean cycle with this code?

We recommend against it. A clean cycle relies on the lock holding the door shut at very high heat, and this code says the lock circuit is not behaving. Bake and roast are normally fine until we repair the lock.

What does a lock repair involve?

We test the relay output, the wiring, and the lock motor, then tell you which one failed and what it costs in writing. You approve before we start, and the work is covered for 30 days.