53
Tango 390-00322 7-2022
Startup - Operation:
Machine will not start up, displays:
“Warming up, please wait…”
Grounds Drawer not fully seated
Check switched, wires, and plug CN20
Water shut off during startup
Check water filters, water pressure switch, plug CN9
Turntable Turns full circle on startup, or doesn’t stop over Waste Drawer
ABS setting too high (set all the way to 40)
ABS is the braking system for the Turntable, normally leave at default setting of 0
Find in: settings; other setings; tamping & preinfusion - scroll to bottom of list
Steam and water buttons grey
& Drink Icon appears briefly on screen when selected, does not brew
Machine in Demo mode: #8 DIP top switch on CPU set to “1”, change to “0”
All Screen Buttons Grey and not functioning
Software versions in Display Screen and CPU are not compatible
Update both using the same USB
Turntable piled with wet coffee
Brew valve exhaust blocked by water in drain
Make sure machine is mounted with slight forward tilt so drain manifold empties.
Machine won’t switch ON;
Main contactor doesn’t engage. Toggle switch not lighted
Faulty ON/OFF Toggle switch
Faulty main 10A fuse
Machine won’t switch ON
;
Main contactor doesn’t engage. Toggle switch lighted
F3 Fuse, 24volts on board
F4 Fuse
Faulty contactor coil
Summary of Contents for UNIC TANGO ACE-ST DUO
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