Electrolux Professional UNIC TANGO ACE-ST DUO, Manual

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Tango 390-00322 7-2022
No flow from spout when dispensing espresso drink:
Clog in coffee system (Gicleur Jet, brew valve, piston, or spout)
● Clog caused by improper cleaning tablets or cleaning in the morning instead of at
end of day.
● Wet grounds on turntable area falling back into piston brew chamber = drain mani-
fold blocked
(see full instructions for grounds spilling on turntable at end of document)
● Ensure machine is mounted with slight forward tilt so drain manifold empties.
● Scale in Gicleur Jet
No flow from water adding valve (Americano) and No coffee from spout
Check Flowmeter for clog
180-250 ml = Normal flow
150-200 ml = Slight restriction, run a
cleaning cycle and test again
Less than 150 ml = Piston clogged.
Remove piston to clean or replace.
Ace / STP:
20 Second Flow
~225 ml rinse
Drink Dispensing Flow Problems:
Reduced flow from spout when dispensing espresso drink
Piston Water Flow Test:
Remove and replace grounds drawer; spout rinses for 20 seconds
(see full instructions for water flow test at end of document)