10 Victoria Arduino — Board Communication Fault / External Boards Not Responding
At a glance
- Severity
- WARNING THEN STOP
- Domain
- ESPRESSO_MACHINE_SYSTEM
- Reference standard
- EN 60335-1 (Electrical appliance safety)
- Product / context
- Com. External Board (Eagle One, subcode per group display 1-3)
What it means
The main board does not communicate with one of the external boards (group displays, keyboards, peripheral modules): the affected controls or display do not respond.
Probable causes
- Communication cable connector loose or oxidized.
- Signal cable interrupted or disturbed.
- Missing supply to the peripheral board.
- Failed peripheral board.
Where to start
Switch off the machine, wait 10 seconds and switch it on again. If the alarm remains, inspect the communication cable and connectors between the main board and the reported board: are they intact, seated and free of oxidation?
Full guided diagnosis in the app
The diagnostic tree for this fault has 3 guided steps with measurements, checks and resolutions. You'll find it in HorecaIQ, one of the four IndexOS apps: free, works offline.
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The same fault on other brands
More Victoria Arduino codes
- 15 — Water Main Pressure Below Threshold / No Water Supply
- 16 — Boiler Overpressure / Safety Valve Release
- 2 — Boiler Heating Timeout / Temperature or Pressure Not Reached
- 3 / 4 — Espresso Boiler/Group Probe Fault — Short Circuit or Open Circuit
- 9 — Group Head Dispensing Timeout / Flowmeter Error
- 1 — Boiler Fill Timeout / Water Missing