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11.0 TECHNICIAN GUIDES
11.1 Common Error Codes And Troubleshooting
ERROR CODE
SOLUTION
DOSER ERROR
1. Please check water supply is connected and turned on.
2. If coffee grind is too fine, water will be restricted through flow meters
which will show an error.
3. Please check 6mm bulkhead connectors for group heads are connected to
tubes in the correct orientation for group one, two and three.
4. Pump is plugged into position 5 UCU-E
N.C.
Please ensure 14P plug leading from the UCUH-H is properly connected to
position 4 UCU-E.
C.C.
Please ensure Wexus is plugged into back of UCU-E correctly. This error will
only occur if Wexus is plugged into port of UCU-H.
NEG.PRESSURE.
Steam boiler is overfilled, with caution release water from boiler. Valve is
located internally on the left hand side, front of UCU-H box.
Hexadecimal characters/
character anomalies
Please reset Nexus/Stylus using switch A, turning off for at least 10 seconds.
CTU screen blank
Please check connection of 32P plug from CTU into position 1 UCU-E.
- Lights not illuminating
(barista/switch/logo)
- Steam not activating
- Group switch flashing and
not activating
Please make sure switch C is in ON position on UCU-E.
Summary of Contents for NEXUS
Page 1: ...Nexus Stylus USER MANUAL NEXUS STYLUS USER MANUAL 2 GROUP 3 GROUP ENGLISH ...
Page 6: ...6 This page has been left intentionally blank ...
Page 14: ...14 4 0 IDENTIFYING COMPONENTS 4 1 Nexus Stylus ...
Page 51: ...51 8 0 OPERATING WEXUS NEXUS MODELS ONLY 8 2 1 Brewing Mode ...
Page 52: ...52 8 0 OPERATING WEXUS NEXUS MODELS ONLY 8 2 2 Target Set Mode ...
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