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Category Symptom Possible Reasons & Soluons
Vacuum Breaker Normal for the VB to spuer unl the steam tank is near full pres-
sure
If spuering connues, replace it
Volumetric
System
VMUFO# Error The ow meter has detected ow when not brewing a shot. this can
indicate a leak in the brew system. Check brew valves and visually
inspect brew system
General Coee Crema is
Thin with Large
Bubbles & Tastes
Astringent
Grinder burrs are dull. Replace immediately
Coee is old
Brew temperature may be set too low
Beeping Machine Low Water error (STLW01). See page 37 and 42 “steam tank not ll-
ing” cycle power to clear 5 minute me out if required
Portalter Portalter “ears” will wear over me allowing the handle to swing
further before the basket is fully engaged. Use of taller gaskets
(8.5mm or even 9.0mm) will extend the usable life of the portalter.
Ask your dealer, service provider, or the Synesso™factory for more
info
Diffuser Screen is
Loose
This is most likely caused by over filling the portafilter basket with
coffee. This causes the expanding coffee puck to push against the
diffuser and bend the screw contact point away from the screw