What happens if the low pressure switch detects low pressure in a gas appliance?

When the low pressure switch detects low pressure in a gas appliance, the burner will shut down as a safety mechanism. This is crucial because low pressure conditions may indicate a fault in the gas supply, such as a gas leak or a blockage. The shut-down of the burner ensures that unburned gas is not allowed to accumulate, which could lead to dangerous situations such as an explosion or fire.

This function is a key part of the appliance's safety features, intended to protect both the appliance and the individuals using it. The burner’s automatic shutdown helps prevent further operation under unsafe conditions until the issue is resolved and the system can return to normal operation safely.