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Stap 4
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Preliminary Power tests with Boiler and Pump
  • 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.

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