66
Category Symptom Possible Reasons & Soluons
Steam
Pressure
Water level probe (auto ll) needs to be de-scaled or cleaned. This
probe is located behind the le side panel
Make sure level probe (auto ll) is working. See Test Level Probe
Water is too hard. The water level (auto ll) probe requires a low
level mineral content in order to detect the water and relay the in-
formaon to the CPU. Do not use deionized water in the machine
On machines built prior to 01-01-2011, adjustment can be made to
the level probe sensivity control on the power board in the elec-
tronics box. See Probe Sensivity Photo
Steam Valve Stem
Seals Leak
Replace O-Rings. Purchase Rebuild Kit. See Steam Valve Rebuild in-
strucons for more info
Auto Fill Valve
(Solenoid) is turn-
ing OFF and On
without Filling the
Steam Tank
Check that the water to the machine has not been cut o or
restricted
Conrm that auto ll delay is set to at least 5 seconds.
See Programming Guide
If the machine is installed on a boat or other mobile plaorm, in-
crease the autoll delay as the water may “slosh” inside the tank and
confuse the level probe
Working from a stac tank and there is no pressure available to ll
the steam tank. Dual inlet machines will need a line boost pump or
custom plumbing to operate from a stac tank with no line pressure
Machine is not level. Check to make sure the surface that holds the
machine is level. Slightly adjust leg height to create a level machine
The Sight Glass
Shows that the
Water Level in the
Steam Tank is ei-
ther too High or
too Low
Water level probe (auto fill) needs to be de-scaled or cleaned. This
probe is located behind the left side panel
On machines built prior to 01-01-2011, The manual ll switch locat-
ed on the front of the electrical box may have been depressed. Use
the hot water spout to drain the steam tank unl the ll solenoid
opens and the tank begins to rell
If you are working from a stac tank then you must use a line pres-
sure boost pump to provide the pressure needed to ll the steam
tank. Contact your dealer, service provider, or the Synesso™factory
for more informaon regarding stac tank installaons