Wolf Legacy E Series Code Error 03 x 9: Oven light not detected

What Error 03 x 9 means

On the Wolf Legacy E Series wall ovens, including the SO30TE/S/TH, Error 03 x 9 means No Oven Light Detect. The control checks the oven light circuit and finds no light responding. Baking is usually unaffected, and the main thing you notice is a dark cavity and the code on the display. Read the digit that replaces the x as the cavity number.

Common causes of Error 03 x 9

Oven light bulb burned out
Bulb not seated tightly in its socket
Light wiring or socket connection loose

✓ One safe check you can try

1. Take any food out once it is safe, then turn the oven off and wait. 2. Remove the bulb cover and bulb with dry hands, following the use and care guide. 3. Install a new bulb rated for the oven and refit the cover. 4. Reset the breaker for one minute and restore power.

! Why to stop there

If a new bulb does not help, the cause is in the socket or wiring behind the cavity wall.
Sockets sit near high heat and live power, so replacing them is not an owner job.
We give the price in writing before any work.
Thirty days of workmanship warranty come with every completed repair.

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 1C21Wolf M Series Code 1C21: Both upper bake element DLbs open 3621Wolf M Series Code 3621: Upper door locked, not in clean 1D21Wolf M Series Code 1D21: Both upper broil element DLbs open

Error 03 x 9Error 03 x 9 questions

Does this stop the oven from cooking?

Usually not. The light is a convenience item, though the control reports it, so the code can show while baking still works. We advise fixing it so the display is clear.

Which bulb do I need?

Use the exact bulb type named in your use and care guide for the model. A wrong type can burn out quickly or fail to light.

Why did a new bulb not clear the code?

The code may stay until the next oven cycle, or the socket or wiring may be at issue. If it stays after a breaker reset, we can test the light circuit.