Montpellier Electrical / Relay or Transformer Noise

Oven emits a buzzing or humming noise from the control area when heating.

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

Noisy control board relays, Vibrating transformer on PCB, Loose mounting screws, Mains interference filter vibration

Safety first: Turn off power before removing the control panel or accessing the control board.

Steps to check:

Panel removal: Remove the front control panel to access the main PCB.
Inspect components: Identify any relay or transformer that vibrates excessively when the oven is on (requires careful live testing by a competent person).
Tighten mounts: Tighten screws or add insulating washers to reduce vibration.
Replace board: If the noise is excessive or accompanied by malfunction, replace the main control board.

Hard 4/5

Main Control Board

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