What causes the Partial Brew code on a Keurig coffee maker?

Clogged exit needle: Pod grounds blocking the bottom puncture needle Clogged entrance needle: Coffee residue in the upper needle Scale in internal lines: Reduced flow through heater and tubing

Keurig · Coffee Maker Minor

Partial Brew — short cup volume

The brewer completes a cycle but dispenses less than the selected cup size. Almost always caused by clogged needles or scale restricting flow — not a hardware fault.

Keep using it?: Yes — fix when convenient
DIY difficulty: Easy
Typical cost: $6-10
Verified against: keurig.com ↗

The fix

Keurig needle cleaning tool

Clogged entrance/exit needle or scale restricting flow

$6-10 easy difficulty 10 min

Diagnose first: A straightened paper clip does the same job as the tool for a one-off clean. If short cup volume continues after clearing both needles, descale before assuming pump failure.

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Didn't resolve it? Next suspect: Keurig Descaling Solution ($10-15)

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How to fix it

Lift the handle and remove the pod
Straighten a paper clip and insert into each of the three holes on the exit needle to clear grounds
Insert the paper clip into the upper entrance needle (carefully — it's sharp)
Wipe the pod holder and reinstall
Run two water-only brew cycles to flush debris
If volume is still short, descale the unit

Why it happens

Typical signs: Cup volume less than selected size · Brew cycle ends early · Coffee comes out slowly · Coffee grounds in the cup

Clogged exit needle Pod grounds blocking the bottom puncture needle
Clogged entrance needle Coffee residue in the upper needle
Scale in internal lines Reduced flow through heater and tubing
Pump weakening Vibratory pump losing pressure with age

More Keurig coffee maker codes

Add Water Add Water Light — reservoir low or sensor fault All Lights Blinking All Lights Blinking — internal water flow or sensor fault Auto Off Auto Off — power-save shutdown Brewer Needs Reset Brewer Needs Reset — control board lockup Brew Interrupted Brew Interrupted — cycle aborted mid-brew Descale Light Descale Light — mineral buildup detected

All Keurig codes → All coffee maker codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: keurig.com.