Anti-vacuum valve

Replace the anti-vacuum valve

This valve lets air in as the steam boiler cools and shuts as it heats. Owners replace it when it stops sealing; cleaning sometimes works. This is owner practice, not a Lelit method.

1. Unplug, let it go cold and take the top panel off.
2. Find the valve on top of the steam boiler. On this version a hose runs from it to the drip tray.
3. Pull the hose off and unscrew the valve.
4. Wrap the new valve's thread with PTFE tape. One owner was told no sealant was needed, and it leaked until taped.
5. Fit it, push the hose back on, heat up and listen.

To confirm the fault first: with the machine hot and unplugged, pinch this valve's hose, then the safety valve's hose, and watch which one stops the hiss.

Lelit Elizabeth: every job