Keurig
Keurig Coffee Makers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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ADD WATER
Display alternates between “ADD WATER” and normal screen; brewer sometimes starts but stops mid-brew.
Intermittent Water Level Sensor Signal
ADD WATER
Display shows “ADD WATER” even though the reservoir is full; brewer will not start a brew cycle.
Water Reservoir Level Detection Failure
ADD WATER (PLUMBED MODE)
On Keurig commercial/plumbed models, “ADD WATER” appears even though the unit is connected to a water line.
Plumbed Water Supply Detection Failure
ADD WATER / HEATING
Display alternates between “ADD WATER” and “HEATING”; unit never reaches ready state.
Control Board Sensor Conflict
ADD WATER / PRIME
Alternating “ADD WATER” and “PRIME” messages; unit will not brew even with full reservoir.
Combined Water Level and Inlet Detection Fault
AUTO OFF
“AUTO OFF” or power icon appears and brewer shuts down unexpectedly during or between brews.
Unintended Auto-Off Activation
BREWING
Display stuck on “BREWING” but no water comes out; pump may run briefly then stop.
Brew Cycle Flow Interruption
CALL FOR SERVICE
Commercial Keurig displays “CALL FOR SERVICE” and will not brew.
Critical System Fault Lockout
DESCALE
“DESCALE” light or message stays on even after running a descale cycle; brewer continues to prompt for descaling.
Descale Indicator Reset Failure
DESCALE
“DESCALE” message appears frequently, sometimes within weeks of a previous descale.
Premature Scale Detection or Flow Meter Miscalibration
ERROR 1
Display shows “ERROR 1” and brewer will not operate.
Internal Temperature Sensor Error
ERROR 2
Display shows “ERROR 2” and brewing is disabled.
Heater Circuit Fault
ERROR 3
Display shows “ERROR 3”; unit may partially power but will not brew.
Water System Sensor Error
ERROR 4
Display shows “ERROR 4”; brewer may shut down or refuse to start.
Internal Communication or Memory Error
ERROR 5
Display shows “ERROR 5”; brewer may beep and stop.
Overpressure or Pump Control Error
HEATING
Display stuck on “HEATING” and never proceeds to “READY”; no hot water dispensed.
Water Heater Not Reaching Temperature
HEATING
“HEATING” message appears frequently between cups and takes unusually long to reach ready state.
Reduced Heating Efficiency
LIFT TO BEGIN
Display shows “LIFT TO BEGIN” even after lowering the handle; brew buttons remain disabled.
Brew Head Lid Position Switch Failure
NOT READY
Display shows “NOT READY – ADD WATER” or “NOT READY” even though water is present and unit is powered.
System Initialization Failure
PRIME
Display shows “PRIME” and brewer will not brew; pump sounds strained or runs dry.
Airlock or Inlet Blockage in Water System
PRIME
“PRIME” message appears intermittently; brewer sometimes brews but often stops with little or no water output.
Intermittent Water Supply Restriction
WATER UNDER PRESSURE
Display shows “WATER UNDER PRESSURE – REMOVE POD” or similar; brewer refuses to start a new brew.
Overpressure Detection in Brew Chamber
WATER UNDER PRESSURE
“WATER UNDER PRESSURE” appears mid-brew and cycle aborts; coffee output is very small.
Brew Chamber Overpressure During Extraction
Symptom
Brew size is much smaller than selected; cups are only partially filled.
Restricted Flow or Incorrect Volume Measurement
Symptom
Brewer dispenses too much water, overflowing the cup.
Overfilling Due to Flow Meter or Control Error
Symptom
Brewer displays ready, but no water comes out when brewing; only a humming sound is heard.
Pump Running Without Flow
Symptom
Brewer does not power on at all; no lights or display.
No Power Condition
Symptom
Brewer emits a burning smell during operation.
Overheating or Electrical Insulation Breakdown
Symptom
Brewer emits a plastic or chemical smell in the coffee.
Off-Gassing or Residue Contamination
Symptom
Brewer is extremely loud during brewing, with strong vibration felt on the counter.
Excessive Vibration Transmission
Symptom
Brewer leaks water from the bottom onto the counter or inside the machine.
Internal Water Leak
Symptom
Brewer makes loud grinding or rattling noises during brewing.
Pump or Mechanical Drive Noise
Symptom
Brewer overflows the internal drip tray or leaks from the front.
Drip Tray or Internal Drainage Overflow
Symptom
Brewer powers on but will not brew when the brew button is pressed; no error message displayed.
Brew Start Input or Safety Interlock Failure
Symptom
Brewer shuts off mid-brew and leaves a partial cup.
Mid-Cycle Interruption
Symptom
Brewer turns on but immediately shuts off or resets when starting a brew.
Power Supply Instability Under Load
Symptom
Coffee is not hot enough even immediately after brewing.
Insufficient Brew Temperature
Symptom
Coffee tastes bitter or burnt.
Over-Extraction or Stale Residue
Symptom
Coffee tastes weak or watery even on normal settings.
Under-Extraction
Symptom
Display is on but very dim or flickering.
Display Power or Backlight Issue
Symptom
Touchscreen is unresponsive or registers random touches.
Touch Panel Failure or Contamination
Symptom
Water drips continuously from the spout even when not brewing.
Brew Valve Not Sealing
Symptom
Water leaks from around the top of the K-Cup holder during brewing.
Brew Head Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| ADD WATER |
Display alternates between “ADD WATER” and normal screen; brewer sometimes starts but stops mid-brew.
|
Intermittent Water Level Sensor Signal | View Details |
| ADD WATER |
Display shows “ADD WATER” even though the reservoir is full; brewer will not start a brew cycle.
|
Water Reservoir Level Detection Failure | View Details |
| ADD WATER (PLUMBED MODE) |
On Keurig commercial/plumbed models, “ADD WATER” appears even though the unit is connected to a water line.
|
Plumbed Water Supply Detection Failure | View Details |
| ADD WATER / HEATING |
Display alternates between “ADD WATER” and “HEATING”; unit never reaches ready state.
|
Control Board Sensor Conflict | View Details |
| ADD WATER / PRIME |
Alternating “ADD WATER” and “PRIME” messages; unit will not brew even with full reservoir.
|
Combined Water Level and Inlet Detection Fault | View Details |
| AUTO OFF |
“AUTO OFF” or power icon appears and brewer shuts down unexpectedly during or between brews.
|
Unintended Auto-Off Activation | View Details |
| BREWING |
Display stuck on “BREWING” but no water comes out; pump may run briefly then stop.
|
Brew Cycle Flow Interruption | View Details |
| CALL FOR SERVICE |
Commercial Keurig displays “CALL FOR SERVICE” and will not brew.
|
Critical System Fault Lockout | View Details |
| DESCALE |
“DESCALE” light or message stays on even after running a descale cycle; brewer continues to prompt for descaling.
|
Descale Indicator Reset Failure | View Details |
| DESCALE |
“DESCALE” message appears frequently, sometimes within weeks of a previous descale.
|
Premature Scale Detection or Flow Meter Miscalibration | View Details |
| ERROR 1 |
Display shows “ERROR 1” and brewer will not operate.
|
Internal Temperature Sensor Error | View Details |
| ERROR 2 |
Display shows “ERROR 2” and brewing is disabled.
|
Heater Circuit Fault | View Details |
| ERROR 3 |
Display shows “ERROR 3”; unit may partially power but will not brew.
|
Water System Sensor Error | View Details |
| ERROR 4 |
Display shows “ERROR 4”; brewer may shut down or refuse to start.
|
Internal Communication or Memory Error | View Details |
| ERROR 5 |
Display shows “ERROR 5”; brewer may beep and stop.
|
Overpressure or Pump Control Error | View Details |
| HEATING |
Display stuck on “HEATING” and never proceeds to “READY”; no hot water dispensed.
|
Water Heater Not Reaching Temperature | View Details |
| HEATING |
“HEATING” message appears frequently between cups and takes unusually long to reach ready state.
|
Reduced Heating Efficiency | View Details |
| LIFT TO BEGIN |
Display shows “LIFT TO BEGIN” even after lowering the handle; brew buttons remain disabled.
|
Brew Head Lid Position Switch Failure | View Details |
| NOT READY |
Display shows “NOT READY – ADD WATER” or “NOT READY” even though water is present and unit is powered.
|
System Initialization Failure | View Details |
| PRIME |
Display shows “PRIME” and brewer will not brew; pump sounds strained or runs dry.
|
Airlock or Inlet Blockage in Water System | View Details |
| PRIME |
“PRIME” message appears intermittently; brewer sometimes brews but often stops with little or no water output.
|
Intermittent Water Supply Restriction | View Details |
| WATER UNDER PRESSURE |
Display shows “WATER UNDER PRESSURE – REMOVE POD” or similar; brewer refuses to start a new brew.
|
Overpressure Detection in Brew Chamber | View Details |
| WATER UNDER PRESSURE |
“WATER UNDER PRESSURE” appears mid-brew and cycle aborts; coffee output is very small.
|
Brew Chamber Overpressure During Extraction | View Details |
| – |
Brew size is much smaller than selected; cups are only partially filled.
|
Restricted Flow or Incorrect Volume Measurement | View Details |
| – |
Brewer dispenses too much water, overflowing the cup.
|
Overfilling Due to Flow Meter or Control Error | View Details |
| – |
Brewer displays ready, but no water comes out when brewing; only a humming sound is heard.
|
Pump Running Without Flow | View Details |
| – |
Brewer does not power on at all; no lights or display.
|
No Power Condition | View Details |
| – |
Brewer emits a burning smell during operation.
|
Overheating or Electrical Insulation Breakdown | View Details |
| – |
Brewer emits a plastic or chemical smell in the coffee.
|
Off-Gassing or Residue Contamination | View Details |
| – |
Brewer is extremely loud during brewing, with strong vibration felt on the counter.
|
Excessive Vibration Transmission | View Details |
| – |
Brewer leaks water from the bottom onto the counter or inside the machine.
|
Internal Water Leak | View Details |
| – |
Brewer makes loud grinding or rattling noises during brewing.
|
Pump or Mechanical Drive Noise | View Details |
| – |
Brewer overflows the internal drip tray or leaks from the front.
|
Drip Tray or Internal Drainage Overflow | View Details |
| – |
Brewer powers on but will not brew when the brew button is pressed; no error message displayed.
|
Brew Start Input or Safety Interlock Failure | View Details |
| – |
Brewer shuts off mid-brew and leaves a partial cup.
|
Mid-Cycle Interruption | View Details |
| – |
Brewer turns on but immediately shuts off or resets when starting a brew.
|
Power Supply Instability Under Load | View Details |
| – |
Coffee is not hot enough even immediately after brewing.
|
Insufficient Brew Temperature | View Details |
| – |
Coffee tastes bitter or burnt.
|
Over-Extraction or Stale Residue | View Details |
| – |
Coffee tastes weak or watery even on normal settings.
|
Under-Extraction | View Details |
| – |
Display is on but very dim or flickering.
|
Display Power or Backlight Issue | View Details |
| – |
Touchscreen is unresponsive or registers random touches.
|
Touch Panel Failure or Contamination | View Details |
| – |
Water drips continuously from the spout even when not brewing.
|
Brew Valve Not Sealing | View Details |
| – |
Water leaks from around the top of the K-Cup holder during brewing.
|
Brew Head Seal Failure | View Details |
No matching codes found
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