Wolf E Series Wall Oven Code 4021: Bake element load missing

What 4021 means

On Wolf E Series wall ovens, including the SO3050TE/S/T and DO3050TE/S/T, code 4021 means the control found the bake element load missing. In plain words, it sent power to the bake element and could not see it draw any, as though it were disconnected or open. You will see 4021, and the oven may not preheat or may bake far slower than the set temperature.

Common causes of 4021

Open or burned-out bake element
Loose connection at the bake element terminals
Relay board output that feeds the bake element

✓ One safe check you can try

1. Hit Off, step back, and let the cavity release its heat. 2. Look through the window or open the door once cooled and see whether the bottom element glows red during a short Bake; do not touch it. 3. Cycle the breaker off for two minutes, then on. 4. If 4021 returns, call us.

! Why to stop there

Bake is the core heating mode, so the oven is of little use until it is repaired.
A missing load could be an element or a wiring connection, and a meter shows which.
Our written estimate is given before work, and every repair is covered 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

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 2030Wolf M Series Code 2030: Relay board ambient thermistor circuit 3821Wolf M Series Code 3821: Upper bake bank wiring error 2130Wolf M Series Code 2130: Relay board voltage calibration failed

40214021 questions

How can I tell if my bake element is dead?

During a short Bake, a healthy element glows orange. If it stays dark while the oven claims to heat, 4021 matches. Do not touch it. Tell us what you saw when you call.

Does 4021 mean the oven is unsafe?

The oven itself is not dangerous when it simply fails to heat. The risk is from loose wiring, so avoid repeated attempts and let a technician inspect the terminals.

Is this common on E Series ovens?

Element loads missing is a straightforward code that tracks to a heating part or its connection. It is a routine repair for us, and we normally carry the common elements.