Wolf induction cooktops (CI Transitional / Contemporary and older CT series): quick sheet

Covers: Wolf built-in induction cooktops: current CI series in 15, 24, 30 and 36-inch sizes, Transitional framed and unframed and Contemporary (for example CI304T/S, CI304TF/S, CI365T/S, CI365TF/S, CI365C/B, CI243C/B, CI152TF/S), plus the older CT series induction cooktops (for example CT30I/S, CT36I/S, CT30IU, CT36IU). Wolf induction ranges (IR30450, IR36550) share many code meanings but are a separate product. Read the rating label under the cooktop or on the burner box for model and serial.

Cross-checkedBrands: Wolf7 components

Glass-top induction cooktops built around separate induction generators (inverter boards) that each drive one or two coils, a control / communication board, and a touch user interface with per-zone sensors. A 36-inch five-zone model runs on 240/208 V with a 50 A dedicated circuit. Wolf's support pages give each E-code a short cause (for example E8 / E10 communication failure between the control board and a generator, E40 burner sensor shorted, E44 burner sensor open, E43 generator failure) and the same first step: breaker off 30 seconds and retest. F7 is electronics overheating past about 158°F (70°C), which is usually an installation or ventilation problem.

Safety first

240/208 V, 50 A circuit: both breaker legs off and verified dead before lifting the cooktop (caution).
Generator boards store a high DC voltage on capacitors: wait and measure before touching; board work is trained-tech only (caution).
Users with pacemakers or implanted devices should follow their doctor's advice about induction.
Never operate with cracked glass.

How it works

Power path: 240/208 V enters at the junction box, feeds a filter / supply section and then the induction generators. Each generator powers its own coil or coils at high frequency; Wolf's codes number the generators (generator 1, generator 3 and so on), so the code tells you which board to check.

Each zone has a temperature sensor under the glass on its coil. Wolf logs E40 when a burner sensor is shorted and E44 when it is open; the zone shuts down to protect the glass and the generator.

The control (communication) board links the touch interface to the generators. E8 and E10 are communication failures with a specific generator; Wolf notes a burn mark or a blown fuse trace on the board as a possible cause. E4 is an implausible configuration (control board).

Bridge: on CI models two zones can be joined to heat a large griddle, roaster or fish poacher as one area. Boost raises a zone above its normal rating for a short time (on the CI365TF/S two 2,100 W zones boost to 3,700 W and the 2,600 W zone boosts to 3,700 W).

Cooling: a fan under the glass cools the generators. If the electronics pass about 158°F (70°C), the cooktop shows F7; Wolf asks to check installation and ventilation, run the hood if there is one, let it cool and reset the breaker.

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Official manufacturer documentation

Always confirm values against the tech sheet for the exact model.

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Large stainless refrigerator set flush between kitchen cabinets by Alex Qian, Pexels License

Diagnostic guides for this appliance

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Oven keeps heating when turned off or overheats past setpoint

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