Synesso Espresso Machine

Technical Manual 35
● If the steam wand constantly drips warm water and is warm to the touch
even after an extended time without use, the valve will require a new
seal. Obtain and install a steam valve rebuild kit from your dealer, service
representative, or the Synesso factory.
● Steam and/or water bubbling out from around the steam wand pivot
ball indicates that the steam wand ball o-ring needs to be replaced. This
o-ring is included in a steam valve rebuild kit. Machines produced before
#510 will likely benet from the new teon o-ring, which provides an im-
proved seal and wear resistance.
● If water leaks from the space between the steam wand handle as-
sembly and the side panel, o-rings on the brass pusher rod are worn
and need to be replaced. These o-rings are included in the steam valve
rebuild kit. The pusher rod can be accessed by removing the side panel
and pulling the pusher out from the steam valve.
Brew Groups ● A Leaking diffuser indicates the brew valve is not sealing properly.
Open the valve and clean the sealing faces with a soft cloth. Inspect the
valve for scale and calcium buildup.
● If water bypasses the portalter gasket and leaks out around the porta-
lter when properly engaged and brewing, the portalter gasket will need
to be cleaned. Use a soft brush and scrub any grounds from the surface
of the gasket. Rinse with hot water. If the issue persists, replace the por-
talter gasket.
General / Nonde-
script
● Dirty / brown water under the machine indicates the drain box is
clogged or overloaded. Remove the right side panel and clear any ob-
structions in the drain box. Be sure the drain hose has an even, steady
slope toward the oor drain. Kinks, dips, or at runs will slow or stop the
ow of waste water from the machine drain.
● A small amount of water may splash between frame panels during a
steam wand purge, or when rinsing the drip pan. The water will then drip
onto the countertop or frame of the machine. This is normal.
● Clean water under the machine or on top of the electrical box indicates
an internal leak. Remove the side panels and facias until the source of
the leak is determined. Contact your dealer, service representative, or the
Synesso factory for more info on xing your specic leak.
General Coffee Crema is
Thin with Large
Bubbles & Tastes
Astringent
● Grinder burrs are dull. Replace immediately
● Coffee is old
● Brew temperature may be set too low
Vacuum breaker ● See Vacuum Breaker Explanation
Portalter ● Portalter “ears” will wear over time 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 portalter. Ask your dealer, ser-
vice provider, or the Synesso factory for more info.
Diffuser Screen is
Loose
● This is most likely caused by over lling the portalter basket with cof-
fee. This causes the expanding coffee puck to push against the diffuser
and bend the screw contact point away from the screw.
TROUBLESHOOTING