Salter Switch-Mode Power Supply Noise

Unit emits a high-pitched electronic whine or buzzing from the control panel area.

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 transformer or inductor on PCB, Age-related capacitor issues, Loose PCB mounting screws

Safety first: Unplug the cooker before opening the housing.

Tighten PCB mounts: Ensure the control board is firmly screwed to its mounting posts.
Inspect components: Look for loose coils or transformers; gently press with an insulated tool (while powered, only if you are qualified) to confirm the noise source.
Acceptable noise: Mild coil whine can be normal, but loud or changing noise may indicate failing components.

If the noise is accompanied by malfunction, replace the main control PCB.

Hard 4/5

Main Control PCB

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