Miele

Miele Coffee Makers Error Codes

Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.

Advertisements
F1
Machine will not start; display shows F1 shortly after power-on
Main Control Electronics Fault
F10
Machine displays F10; water tank appears full but machine reports no water
Water Tank Presence / Level Sensor Fault
F11
Display shows F11; machine reports a drainage or waste water fault (on plumbed-in models)
Drain Pump / Waste Water Fault
F12
Machine shows F12; no water intake from plumbed-in supply
Inlet Valve / Water Supply Fault
F13
Display shows F13; machine reports heating or temperature rise fault
Heating Time-Out / Insufficient Temperature Rise
F14
Machine displays F14; communication error between modules
Communication Bus Fault (Display to Main Board)
F15
Display shows F15; internal memory or configuration error
EEPROM / Configuration Data Fault
F16
Machine shows F16; brew unit not recognized or not in correct position
Brew Unit Position / Recognition Fault
F17
Display shows F17; milk system fault, milk not being drawn or frothed
Milk Pump / Milk Flow Fault
F18
Machine displays F18; internal pressure or pump overrun fault
Overpressure / Pump Run Time Fault
F19
Display shows F19; hot water or steam temperature fault
Hot Water / Steam Temperature Control Fault
F2
Machine displays F2 and will not heat or brew
Thermal Sensor / NTC Fault on Heater Block
F20
Machine shows F20; internal fan or ventilation fault
Cooling Fan Fault
F3
Display shows F3; machine may overheat or not reach correct temperature
Overheat Protection / Safety Thermostat Trip
F4
Machine shows F4 and stops brewing; may abort shortly after starting
Flow Meter / Water Flow Sensor Fault
F5
Display shows F5; machine does not pump water or stops mid-cycle
Water Pump Fault
F6
Machine displays F6; water may leak internally or machine refuses to brew
Leakage / Water in Base Tray Fault
F7
Display shows F7; brew unit will not move or machine jams during start-up
Brew Unit Drive Motor Fault
F8
Machine shows F8; steam or hot water functions may not work correctly
Steam Boiler / Steam Temperature Sensor Fault
F9
Display shows F9; grinder does not run or stops unexpectedly
Coffee Grinder Motor Fault
Symptom
Coffee is lukewarm or not hot enough
Low Brew Temperature
Symptom
Coffee is too strong or bitter even at normal settings
Over-Extraction / Brew Temperature or Grind Too High
Symptom
Coffee tastes weak or watery despite normal volume
Incorrect Grind or Dosing / Brew Pressure Too Low
Symptom
Display is very dim or backlight flickers
Display Backlight / Power Issue
Symptom
Display repeatedly shows 'Fill water tank' even when tank is full
Water Tank Detection Issue (No Error Code)
Symptom
Display shows 'Clean the brew unit' frequently or machine requests cleaning after few cycles
Brew Unit Contamination / Sensor Sensitivity
Symptom
Display shows 'Descale the appliance' soon after descaling was performed
Descaling Counter / Scale Sensor Issue
Symptom
Display shows 'Empty waste container' even when container is empty and reinserted
Waste Container Presence / Counter Fault
Symptom
Display shows 'Insert brew unit' even though brew unit is installed
Brew Unit Presence Detection Fault
Symptom
Display shows 'System lock' or child lock symbol; machine will not brew
Child Lock / System Lock Activated
Symptom
Grinder runs but no beans are ground (beans remain in hopper)
Grinder Feed / Hopper Blockage
Symptom
Machine frequently displays 'Refill beans' even when hopper is full
Bean Level Detection / Grinder Load Sensing Issue
Symptom
Machine leaks water under the unit during or after brewing
External Leak from Hydraulic Circuit
Symptom
Machine makes loud knocking or grinding noises during brewing
Mechanical Drive or Grinder Noise
Symptom
Machine turns on but buttons or touch display do not respond
User Interface / Touch Control Failure
Symptom
Machine vibrates excessively or moves on the counter during operation
Excessive Vibration / Pump or Grinder Imbalance
Symptom
Machine will not power on; display remains dark
No Power / Power Supply Failure
Symptom
Milk froth is too airy or too liquid
Incorrect Milk Frothing Performance
Symptom
Milk is not being drawn from the container during cappuccino/latte
Milk Suction Failure
Symptom
Moldy or stale smell from the machine or coffee
Hygiene / Residue Build-Up
Symptom
No coffee dispensed; coffee grounds end up in waste container
Brew Unit Outlet Blockage / Misalignment
Symptom
Steam wand or milk frother produces little or no steam
Steam Output Restriction
Symptom
Strong burnt smell during brewing or from inside the machine
Overheating or Electrical Burning
Symptom
Water collects inside the drip tray very quickly, even when not brewing
Internal Bypass Leak / Drain Valve Leak
Advertisements