Most oven explosions occur due to a failure of at least three or more components of a safety system such as the electromechanical and electronic controls or limits -- and the human interface.
Most oven explosions occur due to a failure of at least three or more components of a safety system. Included in the components of the system are the electromechanical and electronic controls or limits, and the human interface. The human interface can involve not only the actual operator of the equipment, but also those that were involved in the design and construction. As the operator of an oven, furnace or kiln that has shut down, the most important thing to do is not become the last item in a string of failures that will cause an unscheduled oven or furnace incident or explosion. In the end, it is the person who takes the final action of pushing the button to start the equipment who is responsible for ensuring that all of the controls installed to provide a safe operating environment are in good operating condition. The operator should know how the equipment operates and why the controls function the way they do.
When a lockout on safety occurs, the flame safeguard control often is seen as the problem because most often it generates the alarm signal. There are two sides to every control: the input and the output. The actual problem could be any device in the control system.