Wolf 24-inch E Series Code E38: Electronics area too high in temperature

What E38 means

Wolf 24-inch E Series wall ovens (SO24 and SO2450 lines) show E38 when the electronics area has become too hot. The listed causes match E35: heat from another appliance nearby, an exhaust fan failure, or a power failure during baking. The control stops the cycle to protect itself, so you will see E38 and a cooling oven. Owners usually see it after a long roast or when the kitchen is already warm.

Common causes of E38

Exhaust fan failure
Another appliance heating the cabinet area
A power failure during a bake

✓ One safe check you can try

1. Leave the door cracked open and let the oven cool for half an hour. 2. Check that the cabinet vents are not covered or crowded. 3. Restore power through the breaker and try a short, gentle Bake. 4. If E38 returns during normal use, schedule service.

! Why to stop there

A cooling fan problem will keep tripping the oven.
Heat built up near the board can shorten its life.
A written price comes first, with a 30-day warranty after.

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 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

E38E38 questions

Why does E38 appear after long cooking?

Heat builds in the electronics area. If the fan is not clearing it, the oven stops itself. Heat from a nearby appliance can add to it.

Will it clear once the oven cools?

Often yes, but it will return if the cause remains. That is why we check the fan and the installation. Check that vents are clear, and tell us what is installed next to it.

Can the surrounding cabinet matter?

Yes. A hot appliance placed close by, or blocked vents, can add heat to the electronics area. We look at the whole installation, not only the oven.