Code decoder
Rancilio Espresso machines error codes
Pick the maker and the equipment, or type the code. Each page says what the code means on that control, what is safe to check and when to stop.
- Codes
- 2,442
- Makers with codes
- 98
- Updated
- November 2026
E00Rancilio Espresso Machine Error Code E00: CPU DiagnosisE01Rancilio Espresso Machine Error Code E01: Boiler Fill Time-OutE02Rancilio Espresso Machine Error Code E02: Boiler Pressure Time-OutE03Rancilio Espresso Machine Error Code E03: Pressure Sensor ShortE04Rancilio Espresso Machine Error Code E04: Pressure Sensor Wire BrokenE05Rancilio Espresso Machine Error Code E05: IDS Connection MissingE09Rancilio Espresso Machine Error Code E09: Group 1 24 V Short CircuitE10Rancilio Espresso Machine Error Code E10: Group 2 24 V Short CircuitE11Rancilio Espresso Machine Error Code E11: Group 3 24 V Short CircuitE12Rancilio Espresso Machine Error Code E12: Group 4 24 V Short CircuitE13Rancilio Espresso Machine Error Code E13: General Function ShortE14Rancilio Espresso Machine Error Code E14: Level Sensor ShortE15Rancilio Espresso Machine Error Code E15: Pressure Sensor 12 V ShortE16Rancilio Espresso Machine Error Code E16: Flowmeter 12 V ShortE17Rancilio Espresso Machine Error Code E17: External 5 V ShortE18Rancilio Espresso Machine Error Code E18: Power Board 12 V ShortE19Rancilio Espresso Machine Error Code E19: Boiler Over PressureE00-E19 / W01-W04 (offset numbering)Rancilio Espresso Machine Error Codes: Classe 9 Numbering DiffersE06Rancilio Espresso Machine Log Entry E06: Softener RegenerationE07Rancilio Espresso Machine Log Entry E07: Maintenance RequestedE08Rancilio Espresso Machine Log Entry E08: Cleaning InterruptedW01Rancilio Espresso Machine Warning W01: No Flowmeter Signal, Group 1W02Rancilio Espresso Machine Warning W02: No Flowmeter Signal, Group 2W03Rancilio Espresso Machine Warning W03: No Flowmeter Signal, Group 3W04Rancilio Espresso Machine Warning W04: No Flowmeter Signal, Group 4W05Rancilio Espresso Machine Warning W05: iSteam Sensor Short CircuitW06Rancilio Espresso Machine Warning W06: iSteam Sensor Wire BrokenW07Rancilio Espresso Machine Warning W07: Check DataW08Rancilio Espresso Machine Warning W08: Maintenance RequestedW12Rancilio Espresso Machine Warning W12: Softener RegenerationW16Rancilio Espresso Machine Warning W16: Coffee Cleaning RequestedW18Rancilio Espresso Machine Warning W18: Fill Valve Short CircuitW19Rancilio Espresso Machine Warning W19: Fill Valve Wire BrokenW32Rancilio Espresso Machine Warning W32: Check the Message FileW33Rancilio Espresso Machine Warning W33: Check the USB ConnectionW34Rancilio Espresso Machine Warning W34: Purge the iSteam
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Code not listed, or no code at all?
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