Wolf Induction Cooktop Codes E39-E43: Induction hardware needs generator replacement

What E39-E43 means

On Wolf CI induction cooktops with the touchscreen control, such as the CI30460T/S and CI36560T/S, the codes E39 through E43 all mean induction hardware failure, and the stated remedy is to replace the generator. The generator is the power electronics that drive the induction coils. The display shows one of these codes and the affected zones will not heat. Owners cannot repair this at home.

Common causes of E39-E43

Induction generator that has failed
Power electronics for one or more coils no longer working

✓ One safe check you can try

1. Turn all zones off and let the cooktop cool. 2. Drop the breaker for a minute, then raise it again. 3. If the code clears, use one zone briefly. 4. If any of E39 to E43 returns, stop using the cooktop and call us with the exact code and your model number.

! Why to stop there

Generators carry high power and are sealed assemblies, so this is not a home repair.
We confirm the code and give a written price before ordering the part.
A written quote precedes any work here, and the repair carries a 30-day workmanship warranty.

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 Cooktop codes

E7Wolf Induction Cooktop Code E7: Keyboard Diode Configuration Error E8Wolf CT Induction Code E8: no communication with generator 1 E9Wolf CT Cooktop Code E9: Generator 2 Communication Error E00Wolf CI Touchscreen and Integrated Module Cooktops Code E00: Overvoltage or No Error E5Wolf CT Induction Code E5: open ambient thermistor and lock mode E1Wolf CT Induction Code E1: ambient temperature too high around the cooktop E50Wolf Induction Code E50: Open Heat Sink Thermistor on a Generator E10Wolf Induction Code E10: generator 3 not responding to the control

E39-E43E39-E43 questions

Why is one page covering five codes?

They share one meaning, induction hardware failure with generator replacement as the remedy. Tell us which code you see, since it helps us identify the zone.

Is a new generator the only fix?

The stated remedy is to replace the generator. We run our own checks first, so we confirm it before quoting. The model label on the cooktop tells us which meaning applies.

Can a reset clear E39 to E43?

A single reset is harmless to try. If the hardware has failed, the code returns immediately, and the cooktop needs the replacement part. Most of this is settled on the first visit.