Keurig Coffee Maker Error Codes

Complete diagnostic guide for Keurig coffee makers and K-Cup machines in the United States.

Important Note

Keurig coffee makers use various error codes that may vary by model. Some models like the Supreme Plus Smart have additional or more specific error codes. Always refer to your specific model's user manual for model-specific information.

Regular maintenance including descaling and needle cleaning can prevent many common errors. Follow the manufacturer's recommended maintenance schedule for optimal performance.

Pressure and Brewing Errors

Error codes for Keurig coffee makers related to pressure problems, brewing issues, and K-Cup perforation problems.

Error Code / Indicator	Meaning	Possible Causes	Solutions
Code 1	Over pressure / Pressure buildup	Bottom needle clogged or blocked K-Cup not properly perforated Pressure buildup due to blockage Top needle blocked Brew chamber obstruction	Clean top and bottom needles thoroughly Ensure K-Cup is properly inserted Check that K-Cup is correctly perforated Remove any blockages from brew chamber Run descaling cycle if needed Restart the machine
Code 6	Brew time error / Brew cycle interrupted	Pump problem Sensor malfunction Too much pressure Brewing process interrupted Water flow restricted	Descale the machine Clean needles thoroughly Check if pump is working Ensure water reservoir is properly seated Check for blockages in water path Restart the machine

Temperature and Heating Errors

Error codes for Keurig coffee makers related to temperature sensors, overheating, and heating element problems.

Error Code / Indicator	Meaning	Possible Causes	Solutions
Code 2	Over heat / Temperature exceeded	Temperature sensor defective or showing incorrect values Temperature setting too high Heating element malfunction Thermostat failure	Turn off machine and allow to cool Reduce temperature setting Unplug machine for 30 minutes Check temperature sensor Contact service if sensor needs repair
Code 10	Temp sensor bad / Temperature sensor error	Temperature sensor outside measurement range Temperature sensor defective Sensor connection problem Control board error	Check sensor connections Unplug and restart machine Allow machine to cool completely Contact Keurig support Sensor may need replacement
FR	Too cold / Temperature below operating range	Machine temperature below operating range Machine stored in cold environment Heating system not working	Move machine to warmer room Allow machine to warm up for 30-60 minutes Ensure room temperature is above minimum operating temperature Check heating system

Water Supply and Pump Errors

Error codes for Keurig coffee makers related to water detection, pump failures, and water supply problems.

Error Code / Indicator	Meaning	Possible Causes	Solutions
Code 4	No water / Water not detected	Water level sensor defective Water reservoir not properly seated Water reservoir empty Sensor not detecting water	Ensure water reservoir is properly inserted Fill water reservoir Clean water level sensor Check water reservoir for proper seating Remove and reinsert water reservoir
Code 8	Pump failure / Pump not working	Pump defective or blocked Power supply problem Pump motor failure Water path blocked	Check pump for function Inspect power connection Descale machine to clear blockages Check water path for obstructions Contact service for pump replacement Check warranty coverage
Code 11	Brewer dry / More water please	Vacuum in reservoir lid Lid needs to be vented Water filter blocked Water not flowing properly	Vent the reservoir lid Clean or replace water filter Remove lid and reinstall properly Restart the machine Ensure lid is not sealed too tightly

Maintenance and Prevention Tips

Regular maintenance procedures to prevent common Keurig coffee maker errors and ensure optimal performance.

Error Code / Indicator	Meaning	Possible Causes	Solutions
Descaling Required	Mineral buildup / Machine needs descaling	Hard water mineral deposits Lime scale buildup Infrequent descaling Water quality issues	Run descaling cycle with Keurig descaling solution Use white vinegar as alternative descaling solution Follow manufacturer descaling instructions Descale every 3-6 months depending on usage Use filtered or distilled water to reduce buildup
Needle Cleaning Required	Needles clogged / Need cleaning	Coffee grounds blocking needles K-Cup material stuck in needles Infrequent cleaning Debris accumulation	Use Keurig cleaning tool or paperclip to clean needles Turn off and unplug machine before cleaning Remove K-Cup holder and clean needles Run water-only brew cycle after cleaning Clean needles regularly to prevent blockages
Water Filter Replacement	Filter needs replacement / Filter expired	Water filter has reached end of life Filter not replaced on schedule Filter clogged or ineffective	Replace water filter according to schedule Use genuine Keurig water filters Soak new filter before first use Reset filter indicator if available Check filter installation instructions

Need More Help?

If you are experiencing problems with your Keurig coffee maker that are not covered by these error codes, or if the provided solutions do not resolve your issue, we recommend:

Consult your Keurig coffee maker user manual for model-specific information
Visit the official Keurig support page: keurig.com/support
Contact Keurig customer service in the United States
Perform regular maintenance: descale every 3-6 months and clean needles regularly
Use only genuine Keurig water filters and descaling solution
Seek help from a qualified appliance repair technician
Check warranty coverage if your coffee maker is still under warranty

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