Wolf 24-inch E Series Code E18: Break or loose contact in food probe or wiring

What E18 means

E18 on a Wolf 24-inch E Series wall oven, such as the SO24 and SO2450 families, reports a break or loose contact in the food probe or its wiring. The control no longer sees the probe as a complete circuit, so probe-based cooking stops and E18 shows on the display. Plain Bake and Roast without the probe normally keep working.

Common causes of E18

A probe cable that is cracked or broken inside
A plug that is not fully seated in the socket
A loose contact in the probe wiring

✓ One safe check you can try

1. Let everything cool, then pull the probe out and look at the cable for kinks. 2. Push the plug fully into the socket and try again. 3. Test with a different cooking mode that does not use the probe. 4. If E18 stays on, call us and leave the oven walls closed.

! Why to stop there

A cracked probe cable is hard to see from outside.
Telling a bad probe from a bad socket needs testing.
You get the price in writing before we do anything.

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.

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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 1B21Wolf M Series Code 1B21: Cooling fan triac shorted (1B21) 3521Wolf M Series Code 3521: Upper door open or unlocked in clean 1C21Wolf M Series Code 1C21: Both upper bake element DLbs open

E18E18 questions

Is E18 a bad probe?

It might be, since probe cables wear out. It can also be a plug that is not seated or a loose contact in the wiring. Always check the cable for a kink before you replace anything.

Why does E18 only appear sometimes?

A loose contact connects and breaks as the cable moves or heats up, so the code can come and go. That is the typical pattern for a failing cable.

Can I cook without it?

Yes in most cases. Skip the probe and use time-based cooking until the circuit is checked. Regular Bake and Roast do not need it. That keeps dinner on track.