Glass induction cooktop with marked cooking zones

Generic photo: Erik1980 at Dutch Wikipedia · CC BY-SA 3.0

Induction coil and IGBT power board (trained techs)

Induction boards rectify line voltage to a high DC bus and switch it at high frequency through IGBT transistors into a copper coil. Field work is limited to pan check, codes, input power, coil resistance and visual inspection; board-level repair is not a field job.

Single source ~60 min advancedBrands: All

Before you start

Trained technicians only
The DC bus capacitors stay charged after power-off: turn off the breaker, wait, and verify near 0 V before touching the board
Live-voltage tests: use a CAT III-rated meter, insulated probes and one hand; keep the other hand away from the chassis
Glass cooktop is heavy and fragile; support it when lifting

Diagnostic steps

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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.

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