Wolf CT Cooktop Code E6: shorted ambient thermistor

What E6 means

With E6, a Wolf CT induction cooktop from the earlier CTI line, such as the CT30 and CT36 sizes, is reporting a shorted ambient thermistor, so the temperature sensor circuit reads as shorted. The cooktop goes into lock mode and shows the code in the timer display. The communication board takes part in that reading. Be aware that on CI cooktops the same E6 number points to an electrical supply error.

Common causes of E6

Ambient thermistor circuit shorted or its wiring damaged
Communication board misreading the sensor
Lock mode still active after the shorted reading

✓ One safe check you can try

1. Switch off every burner. 2. Turn the cooktop breaker off for a minute and restore power. 3. Check whether the timer display still shows E6 and the cooktop stays locked. 4. Keep liquids away from the controls and leave panels closed. 5. If E6 remains, call us and mention that it is a CT induction model.

! Why to stop there

A shorted sensor reading stays until the circuit is repaired.
Sensor and board checks need meter work behind the glass, which owners should not attempt.
You get a written price up front and 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.

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Other Cooktop codes

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E6E6 questions

Is E6 the same on every Wolf cooktop?

No. On these earlier CT induction cooktops E6 means a shorted ambient thermistor. On CI cooktops, E6 refers to an electrical supply error, so the model matters.

How is E6 different from E5?

E5 is an open ambient thermistor and E6 is a shorted one. Both lock the cooktop, but the circuit condition is opposite. The sooner it is looked at, the less likely a small problem becomes a bigger one.

Will a breaker reset fix E6?

It may clear the lock briefly, but if the sensor circuit is still shorted the code returns. We would test the circuit to confirm. We treat the model details as part of the diagnosis, since similar codes differ between lines.