LG Induction Cooktop Whistling Noise: Troubleshooting and Repair Guide

Is your LG induction cooktop making a high-pitched noise? Find out why and learn how to easily fix this common issue with our expert guide.

Frequently Asked Questions

How do I identify induction-compatible cookware?

Induction-compatible cookware will typically have a flat bottom and be made of a magnetic material such as cast iron or stainless steel. A simple test is to see if a magnet sticks firmly to the bottom of the cookware.

What voltage should I expect at the cooktop terminal block?

For most LG induction cooktops in the US, you should expect 240V AC between the two hot wires, and 120V AC between each hot wire and the neutral wire.

How do I safely discharge capacitors before working on the electronics?

Capacitors can store a dangerous charge even after the appliance is disconnected. Use a high-wattage resistor (e.g., 1000 ohms, 5 watts) with insulated leads to safely discharge the capacitors. Touch the resistor leads to the capacitor terminals for several seconds. Always verify with a multimeter that the capacitor is fully discharged before proceeding.

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