Emeril Lagasse Switching Power Supply / Coil Whine

Unit emits a high-pitched whine or electrical squeal during operation.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Vibrating inductor or transformer on control board, Loose mounting of power components, Aging capacitors causing noise

Safety first: Unplug the fryer before opening the control area.

Confirm source: Listen closely to determine if the noise comes from the control board area rather than the fan.
Inspect board: Look for loose inductors or transformers. Gently press on them (with power off) to see if they are loose.
Secure components: If safe and appropriate, apply a small amount of high-temperature silicone adhesive to secure vibrating components.
Board replacement: If noise is severe or accompanied by erratic operation, replace the main control board.

Medium 3/5

Main Control Board

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