Component 3: Function Selector Switch
The function selector switch is connected to a wire distribution module which channels the different wire connections to all the other components of the oven such as the fan and the heating element.
Over time, these wires may become loose or dislodged, causing the oven to short circuit by coming into direct contact with the neutral terminal. This may cause a spark and a ‘pop’ sound too.
When encountering such an issue while using the oven, it would be advisable to call in a reliable oven repair service engineer to check and replace the faulty component as it is not safe to continue using the oven.
Foreign objects or pests in the oven
There have been numerous cases of pests found interfering with the circuit of an oven causing it to short-circuit. Such occurrences can happen if pests such as lizards or cockroaches are a common sight in the household.
If the oven is not used often, some insects may find their way into the oven and even lay eggs at the power distribution module.