Ensure the machine's steam boiler is fully cooled before proceeding. Always disconnect the machine from the power source before performing any repairs.
Tools required:
phillips screwdriver
metal brush
19mm long socket & socket wrench
Unplug the machine, then remove the top panel.
Once the vacuum breaker is removed be sure to clean off the top of the boiler where the vacuum breaker sits and clean off the cup the vacuum breaker sits inside so that when installing a new vacuum breaker you can create a proper seal.