If an air vent is continually venting steam, what does this signify?

When an air vent is continually venting steam, it indicates a potential issue with the air vent itself, suggesting that it may be faulty and in need of replacement. An air vent is designed to allow air to escape while preventing steam from venting unnecessarily. If steam is continuously escaping, it means the vent is failing to properly seal or close when it should, which can lead to inefficiencies in the heating process and improper operation of the kettle.

In a properly functioning kettle, the air vent should primarily release trapped air during the initial heating phase and then close once steam begins to form. Continuous steam venting can compromise the kettle's ability to maintain the proper pressure and temperature, disrupting its intended function. Therefore, replacing the faulty air vent would be essential to restore proper operation.

Understanding this helps technicians diagnose and resolve issues efficiently, ensuring the equipment operates safely and effectively.