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TROUBLESHOOTING GUIDE
This is a basic troubleshoong guide for some of the common issues that operators might encounter when
using their machine. For more detailed assistance with technical issues, contact your distributor, local service
agent, or Synesso Technical Support.
The machine may be reset by powering o for 10 seconds.
Brewing problems:
The Shot is Pouring Too Slowly:
• Tamp pressure was too rm
• Too much coee is in the basket
• The grind is too ne
• Diusion screens are clogged; clean or replace
• Pump pressure is too low. Ensure that it is set between 8-9.5 bar
• Brew jet is clogged; when operang properly, 60ml water should ow out within 8 seconds
The Shot is Pouring Too Quickly:
• Tamp pressure is too light
• Not enough coee in the basket
• Grind is too coarse
• Portalter baskets are worn or cracked; replace
• Brew temperature is too cold
Crema is Thin with Large Bubbles and Tastes Astringent:
• Coee is old
• Grinder burrs are dull
• Brew temperature may be set too low
Diuser Screen is Loose:
• This is most likely caused by over lling the portalter basket with coee. This causes the expanding
coee puck to push against the diuser and bend the screen-to-screw contact point away from the
screw.
No Pump Pressure When Water Flows from the Group:
• Check the programmed preinfusion me. The pump will not acvate unl the preinfusion me has com-
pleted.
• Pump relay may have failed. Have a technician perform further diagnoscs.
The Pump Comes On, Gauge Reads Full Pressure, but No Water Comes Out:
• Diuser screen/screw, or jet is clogged
• Soap residue not fully ushed aer cleaning has glued the valve closed (tap the valve body gently).
• Brew solenoid has been sealed shut by dried soap or has failed.
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