Code decoder
BUNN 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
Fill Time Too LongBUNN Coffee Brewer Message Fill Time Too Long: Check Water SupplyHeating Time Too LongBUNN Coffee Brewer Message Heating Time Too Long: Service RequiredTemp Sensor Out Of Range, Check For Bad ConnectionsBUNN Coffee Brewer Message Temp Sensor Out Of Range: Check ConnectionsTemp Sensor Out Of Range, Check Wire For ShortsBUNN Coffee Brewer Message Temp Sensor Out Of Range: Check Wire For ShortsTemperature Too LowBUNN Coffee Brewer Message Temperature Too Low: Tank HeatingFILTER NEEDS !!!CLEANING!!!Bunn Slush Machine FILTER NEEDS !!!CLEANING!!!: Freezing StoppedFILTER NEEDS CLEANINGBunn Slush Machine FILTER NEEDS CLEANING: Refrigeration Running Hot!! FILTER NEEDS CLEANING !!BUNN Slush Machine Message !! FILTER NEEDS CLEANING !!: Compressor Too HotCHECK RIGHT/LEFT SIDE PRODUCT MIX OR DRIVE SYSTEMBUNN Slush Machine Message CHECK PRODUCT MIX OR DRIVE SYSTEMCLEAN DUE NOWBUNN Slush Machine Message CLEAN DUE NOW: Cleaning OverdueCLEAN DUE TODAYBUNN Slush Machine Message CLEAN DUE TODAY: Daily Cleaning ReminderDEFROST - LEFT/RIGHT BARREL(S) IN PROCESS OF DEFROSTINGBUNN Slush Machine Message DEFROST: Barrel In Process of DefrostingHOPPER LIGHTS FLASHINGBUNN Slush Machine Message HOPPER LIGHTS FLASHING: Low ProductLEFT/RIGHT REFILL ERROR (Hopper Lights Flashing)BUNN Slush Machine Message LEFT/RIGHT REFILL ERROR: Hopper Lights FlashingLEFT/RIGHT TEMPERATURE SENSOR SHORTED/OPENBUNN Slush Machine Message LEFT/RIGHT TEMPERATURE SENSOR SHORTED/OPENNIGHT MODEBUNN Slush Machine Message NIGHT MODE: Overnight ThawSHAFT SEAL MAINTENANCE DUEBUNN Slush Machine Message SHAFT SEAL MAINTENANCE DUEMONTHLY FILTER CLEAN REQUIREDBunn Slush Machine MONTHLY FILTER CLEAN REQUIRED: Cleaning ReminderTEMPERATURE SENSOR OPENBunn Slush Machine TEMPERATURE SENSOR OPEN: Low Product or SensorTEMPERATURE SENSOR SHORTEDBunn Slush Machine TEMPERATURE SENSOR SHORTED: Thermistor CircuitTORQUE SENSOR OPENBunn Slush Machine TORQUE SENSOR OPEN: No Signal from SensorTORQUE SENSOR SHORTEDBunn Slush Machine TORQUE SENSOR SHORTED: Impossible Sensor Reading
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Code not listed, or no code at all?
A unit that shows nothing often points to power or the control. Call us with the maker and model number and we talk it through.