Plug the machine into wall power (preferably a GFCI wall plug that will trip on any ground faults) and turn on the main power.

Main Power Switch On = The boiler should be heating. Note: If the GFCI circuit protector trips, or a circuit breaker blows, do not proceed with any of the tests below which require a working boiler circuit. Resolve those issues before proceeding.

Main Power On + Steam Valve On = The pump should run; the boiler should be heating, the Ready light should be Off. If the pump doesn’t run, it will be necessary to open the unit for closer inspection and troubleshooting – the problem could be a bad connection, blown thermal fuse on the pump, or a defective pump.

Note: If the pump runs but doesn’t pump water through the steam valve, do not proceed with any of the further tests until the issue is resolved. This is most likely a problem with the pump or pinched tubing. Testing without an operational pump can overheat the unit and damage components.

Note: Always use the Steam valve to prime the unit after cleaning (or running out of water) – this bypasses any back-pressure caused by the portafilter and fills the boiler with water. Once the pump is primed, run some additional water through the portafilter to verify it’s not clogged.

Main Power On + Pump On = The pump should run; the boiler should be heating, the Ready light should be Off while the water is heating.

Main Power On + Ready light On = The 95 deg. thermostat has tripped, turning on the Ready light.