Nespresso Machine Flashing Orange? Here's What It Means And How To Fix It

To new Nespresso owners still figuring out all of the buttons and functions on their machine, a persistent flashing orange light may seem like something to be alarmed about. Indeed, this light does flash for a number of different reasons, such as an empty water tank, a stuck capsule, or an unlocked lever. But most often, this light is a clear signal that it is time for a specific type of routine maintenance: descaling. Over time, naturally occurring minerals like calcium and magnesium present in tap water gradually build up inside a machine's interior heating and water nozzles. When enough of this mineral deposit accumulates, it restricts water flow, which reduces your machine's heating efficiency. A built-in descaling sensor within the machine is timed to go off periodically — hence the orange warning light. And descaling your machine when this light goes off is essential. Ignoring this alert can eventually lead to permanent internal clogging, compromising machine performance and leading to inconsistent brewing temperatures.

Descaling, a part of the Nespresso cleaning process, is the act of running a specialized solution through the system to break down and flush away these stubborn mineral deposits. To begin the descaling cycle, start by completely emptying the drip tray, used capsule container, and remaining water from the reservoir. Next, fill the water tank with fresh water combined with one packet of Nespresso descaling liquid or a non-abrasive, manufacturer-approved descaling solution (some owners have also vouched for a diluted water and vinegar solution, but be cautious when using vinegar because improper dilution could actually harm your machine due to its strong acidity). Place a large container capable of holding at least 34 fluid ounces directly under the coffee outlet to catch the rinsing fluid as it cycles through.

Entering the descaling mode may require a different button combination depending on your specific Nespresso model (fancier versions may make this descaling process easier, as a touchscreen or connection to the Nespresso app will digitally take you through this descaling process step by step). For most Vertuo line models, holding down the main button or lever for a few seconds initiates the descaling sequence. Press the button or push down on the handle to pump the descaling mixture through the internal piping, allowing the solution to break down mineral build-up inside the heater and spout. Once the solution tank drains, rinse the reservoir thoroughly with clean water, refill it fully, and run a full cycle of fresh water to ensure no residual solution remains inside the machine.

Once the final rinse cycle finishes, exiting descaling mode resets the machine's descaling counter and turns off the flashing orange light. Typically, you should be descaling your machine every three to six months, and the machine's built-in sensor will remind you to do so; regular descaling should help to lengthen the overall lifespan of your Nespresso machine and ensure that the quality of your coffee remains optimal. Ultimately, by keeping up with routine maintenance whenever the orange light appears, you can ensure that your Nespresso machine will continue to operate efficiently and deliver quality coffee every time you need a cup of caffeinated brew. Now that you know how to properly descale your machine, you might want to read up on what the numbers on the exterior of your coffee capsules actually mean.