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Nespresso Troubleshooting: Descaling, Blinking Lights, and No Flow Fixes
Fix common Nespresso problems: no coffee flow, blinking orange descaling light, cold coffee, leaking, airlocks, and stuck capsules.
Most Nespresso problems come from three causes: scale buildup, air trapped in the lines, or a part not seated correctly. Work through these fixes in order before assuming the machine is broken. Descaling solves more 'broken' machines than any repair.
No coffee flow or only a few drops
First check the water tank is full and fully seated; a tank sitting a millimeter high starves the pump. If the tank is fine, run two or three cycles without a capsule to purge air from the lines. Persistent weak flow after that usually means scale: run the descaling cycle with Nespresso descaler, not vinegar, which can damage seals.
Orange light blinking: descaling alert
The blinking orange light means the machine has counted enough brews to need descaling. Enter descaling mode per your model's manual, run the full cycle with descaler solution, then rinse with two full tanks of fresh water. The light clears when the cycle completes; interrupting it leaves the alert active.
Coffee comes out lukewarm
Preheat the cup first: run a lungo-sized hot water cycle without a capsule into the cup, discard it, then brew. Cold ceramic steals enormous heat from a 1.35 oz shot. If coffee is cold even in a warm cup after full heat-up, scale on the thermoblock is the likely cause; descale.
Water leaking from the machine
Check three spots: the water tank seating (remove and reseat firmly), the drip tray (empty it; overflows run down the front), and the capsule chamber (a damaged or double-fed capsule breaks the seal). Leaks from the base after those checks suggest an internal hose or seal, which needs service.
Loud pump or sputtering after refilling
That is air in the lines, common after the tank runs dry. Fill the tank, lift and reseat it to burp trapped air, then run water-only cycles until the flow steadies. Never let the tank run completely dry mid-brew if you can avoid it; the pump dislikes running dry.
Capsule stuck or won't eject
Open the lever fully, then close it firmly in one motion; hesitant half-closes jam capsules. Check the used capsule container is not overflowing, which blocks ejection on every model here. If a capsule is visibly deformed in the chamber, power off, let the machine cool, and remove it with the machine unplugged.
Questions, answered
How often should I descale my Nespresso?
When the machine tells you, typically every few months with regular use. Hard water shortens the interval; filtered water lengthens it. Waiting past the alert risks permanent thermoblock damage.
Can I use vinegar to descale?
Nespresso advises against it: vinegar can damage internal seals and leaves odors that take many rinses to clear. Use the manufacturer's descaler or a citric-acid descaler rated safe for espresso machines.
Why does my coffee taste weak?
Usually a clogged or scaled system under-extracting, or the wrong cup size for the pod. Try the programmed volume first; if a normally strong pod brews weak, descale. Stale pods past their best-by date also taste flat.
How do I factory reset my machine?
Most models reset by holding the lungo button while powering on, but the sequence varies by model: Vertuo machines use the single button with specific press patterns. Check your model's manual; a reset restores programmed cup volumes to factory defaults.