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TROUBLESHOOTING GUIDE
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Have a technician perform further diagnostics.
Steam Pressure
Sudden Loss of Steam Pressure:
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Commonly caused from drawing large amounts of hot water while steaming milk or using the tea tap.
Allow the machine time to recover pressure. Check steam temperature set point to make sure it
’
s high
enough for your application. Watch the steam gauge when the pressure drops; allow the heating ele-
ments to heat the incoming cold water. When it reads above 1.1 bar, hot water and steam may be dis-
pensed again.
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Check the wired controller to make sure all temperatures, especially in the steam tank, are close to their
set points.
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Check the element breaker to make sure the heating elements are ON.
Steam Pressure is Set for 1.8 bar or Higher:
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The machine can be set for steam pressure at over 2.0 bar but there can be side effects in the brewing
process. A small amount of water is preheated in the steam tank for brewing. If the temperature in the
steam tank is set very high then this could allow for the preheated brew water to be too hot and cause
some erratic brew temperature spikes. There are ways to make this work if it is absolutely necessary to
have a very hot steam tank. Contact Synesso Technical Support for more details.
Steam Tank
Steam Tank is Not Filling:
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Check for STFV00, STFP00, and/or LOW H20 errors. Power cycle the machine.
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Check inlet hoses for kinks/pinches. Check filter is not clogged, change if needed.
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Have a technician perform further diagnostics.
Steam Tank is Overfilling:
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Water quality is not in spec. The water level probe requires a low level mineral content in order to detect
the water and relay information to the CPU. Do not use deionized water in the machine.
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Debris caught in fill valve. Have a technician inspect the valve.
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Level probes require inspection. Have a technician inspect the level probes.
Steam Has Undesirable Smell; Water from Tank is Discolored and/or Has Debris:
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The tank is contaminated. Have a technician perform a cleaning of the tank.
Steam Valve Stem Seal Leaks:
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Have a technician perform a steam valve rebuild.
