Code decoder
Error codes by maker
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
E1 (flashing)Perlick Bar Refrigerator Error Code E1: Compartment Probe ProblemPerlickE2 (flashing)Perlick Bar Refrigerator Error Code E2: Evaporator Probe ErrorPerlickOPd (flashing)Perlick Bar Refrigerator Error Code OPd: Door Open AlarmPerlickDRAINING / TURN OFFPitco Commercial Fryer Error Code DRAINING: Turn OffPitcoDrn tUrn oFFPitco Commercial Fryer Error Code drn tUrn oFF: Drain Valve OpenPitcoHEAt FAILPitco Commercial Fryer Error Code HEAt FAIL: Digital ControlPitcoHEAT FAIL / IGNITION FAILUREPitco Commercial Fryer Error Code HEAT FAIL: No Heat FeedbackPitcoHIPitco Commercial Fryer Error Code HI: Oil Too HotPitcoProb HIPitco Commercial Fryer Error Code Prob HI: Probe ShortPitcoProbPitco Commercial Fryer Error Code Prob: Probe Open CircuitPitcoPROBE OP / OPENPitco Commercial Fryer Error Code PROBE OP: Open CircuitPitcoSYSTEM FAILUREPitco Commercial Fryer Error Code SYSTEM FAILURE: Probe ShortPitcoGreen and yellow-left lights come on then go off at power-upPitco Commercial Fryer: Green and Yellow Lights Go Off at Power-UpPitcoNo lights at power-upPitco Commercial Fryer: No Lights at Power-UpPitcoCOMMUNICATION ERRORPolar King Walk-In Alarm COMMUNICATION ERROR: No Controller LinkPolar KingDEFR TERM ON TIMEPolar King Walk-In Cooler Alarm DEFR TERM ON TIME: Timed Defrost EndPolar KingDOOR SWITCHPolar King Walk-In Cooler Alarm DOOR SWITCH: Door Open and Room WarmPolar KingEXCESS DEFROSTPolar King Walk-In Cooler Alarm EXCESS DEFROST: Three Quick DefrostsPolar KingHIGH AIR TEMPPolar King Walk-In Cooler Alarm HIGH AIR TEMP: Room Too WarmPolar KingHIGH SUPERHEATPolar King Walk-In Cooler Alarm HIGH SUPERHEAT: Above Upper LimitPolar KingLOW AIR TEMPPolar King Walk-In Cooler Alarm LOW AIR TEMP: Room Too ColdPolar KingLOW SUPERHEATPolar King Walk-In Cooler Alarm LOW SUPERHEAT: Below Lower LimitPolar KingPRESSURE SENSORPolar King Walk-In Cooler Alarm PRESSURE SENSOR: Out of RangePolar KingT1 SUCTION SENSORPolar King Walk-In Cooler Alarm T1 SUCTION SENSOR: Shorted or OpenPolar KingT2 AIR SENSORPolar King Walk-In Cooler Alarm T2 AIR SENSOR: Shorted or OpenPolar KingT3 COIL SENSORPolar King Walk-In Cooler Alarm T3 COIL SENSOR: Shorted or OpenPolar KingT4 AUX SENSORPolar King Walk-In Cooler Alarm T4 AUX SENSOR: Shorted or OpenPolar KingEmail failurePolar King Walk-In Cooler Error Code email failure: Alert Not SentPolar KingEXT ALARMPolar King Walk-In Cooler Error Code EXT ALARM: Input ActivePolar KingFTP communication alarmPolar King Walk-In Cooler Error Code FTP Alarm: No Server LinkPolar KingSNTP Communication alarmPolar King Walk-In Cooler Error Code SNTP Alarm: No Time Server LinkPolar KingE00Rancilio Espresso Machine Error Code E00: CPU DiagnosisRancilioE01Rancilio Espresso Machine Error Code E01: Boiler Fill Time-OutRancilioE02Rancilio Espresso Machine Error Code E02: Boiler Pressure Time-OutRancilioE03Rancilio Espresso Machine Error Code E03: Pressure Sensor ShortRancilioE04Rancilio Espresso Machine Error Code E04: Pressure Sensor Wire BrokenRancilioE05Rancilio Espresso Machine Error Code E05: IDS Connection MissingRancilioE09Rancilio Espresso Machine Error Code E09: Group 1 24 V Short CircuitRancilioE10Rancilio Espresso Machine Error Code E10: Group 2 24 V Short CircuitRancilioE11Rancilio Espresso Machine Error Code E11: Group 3 24 V Short CircuitRancilioE12Rancilio Espresso Machine Error Code E12: Group 4 24 V Short CircuitRancilioE13Rancilio Espresso Machine Error Code E13: General Function ShortRancilioE14Rancilio Espresso Machine Error Code E14: Level Sensor ShortRancilioE15Rancilio Espresso Machine Error Code E15: Pressure Sensor 12 V ShortRancilioE16Rancilio Espresso Machine Error Code E16: Flowmeter 12 V ShortRancilioE17Rancilio Espresso Machine Error Code E17: External 5 V ShortRancilioE18Rancilio Espresso Machine Error Code E18: Power Board 12 V ShortRancilioE19Rancilio Espresso Machine Error Code E19: Boiler Over PressureRancilioE00-E19 / W01-W04 (offset numbering)Rancilio Espresso Machine Error Codes: Classe 9 Numbering DiffersRancilioE06Rancilio Espresso Machine Log Entry E06: Softener RegenerationRancilioE07Rancilio Espresso Machine Log Entry E07: Maintenance RequestedRancilioE08Rancilio Espresso Machine Log Entry E08: Cleaning InterruptedRancilioW01Rancilio Espresso Machine Warning W01: No Flowmeter Signal, Group 1RancilioW02Rancilio Espresso Machine Warning W02: No Flowmeter Signal, Group 2RancilioW03Rancilio Espresso Machine Warning W03: No Flowmeter Signal, Group 3RancilioW04Rancilio Espresso Machine Warning W04: No Flowmeter Signal, Group 4RancilioW05Rancilio Espresso Machine Warning W05: iSteam Sensor Short CircuitRancilioW06Rancilio Espresso Machine Warning W06: iSteam Sensor Wire BrokenRancilioW07Rancilio Espresso Machine Warning W07: Check DataRancilioW08Rancilio Espresso Machine Warning W08: Maintenance RequestedRancilio
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Code not listed, or no code at all?
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