Part One: Trouble code and trouble-shooting strategies for induction cooktops

Power phase shortage

Check with Magnetic table tool whether the power terminal is AC 380v. Power phrase shortage occurs If any measurement is about 200v. (Measure "ab" " ac" " bc" respectively .)

Bridge pile failure

Measure with Magnetic table tool, forward resistance of 1-2 and 1-3 angles should be 300-400Ω, reverse impassable. forward resistance of 2-3 angle should be around 600-700Ω, reverse impassable. 1-5 and 2-7 angles passable. symmetric upper and lower deviations of 4-5 and 6-7 angular resistance no greater than 10 Ω

IGBT failure

Magnetic table tool measurement of 1-2 1-3 angular forward resistance of 300-400 ohms, reverse 2-3 angle forward resistance of 600-700 ohms or so of 1-5 angle 2-7 angle conduction error of 4-5-6-7 angle resistance is not greater than 10 ohms.

Control board failure

Check the small components on the control board for any obvious shedding, damage phenomenon, if not obvious fall off, change the control board to identify its functional or not.

Drive wiring failure

Check for any obvious shedding, disconnection, or measure with millimeter if 2-terminals conducting.

Resistance plate failure

Check if there is any shedding, damage, or breakdown in the resistance panel. Or measure if 4-5 and 6-7 conducting with a Magnetic table tool.

Output transformer failure or wire disconnect

Check if there is false welding, virtual welding, wire breakage

Power overload

Use the submersible current meter to measure its current, whether there is a flash "intermittently heating" when the adjustment does not work.

Heat dissipation fan failure

Measure with Magnetic table tool, AC fan has resistance value, DC fan has no resistance value.

Resonant capacitance failure

Check from its appearance if there is any bulging or cracking, measure its capacity with Magnetic table detection tool if it is rated capacity.

The fan does not work ,coil sensor short-circuited.

Check if the fan work properly and the coil sensor short-circuited.

Coil sensor open circuit

Check if the coil sensor opens circuit.

Fan does not work properly, air access blocked, or aluminum plate sensor short-circuited.

Check if the fan of PCB box worker works properly, aluminum plate is short-circuit or the air access is blocked.

Aluminum sensor open circuit

Check if the aluminum sensor opens the circuit.