What a Coffee Machine Error Code or Warning Symbol Means

What it
usually means.

A fully automatic machine checks a long list of things before and during every cup: whether the tank is in and has water, whether the flowmeter sees water moving, whether the heater reaches its temperature, whether the grinder turns and the brew unit reaches its positions, whether the tray and grounds container are in, and on many models how long ago the milk system, the filter and the descaling were done. When one of those checks fails or comes due, it shows a code or a symbol. A good part of them are reminders and modes rather than failures: descale, clean, change the filter, rinse, energy save and even a demonstration mode on a floor model. Makers use different symbols for the same thing, and one number can mean different things on two brands, so the model number is what decides. Our code pages group every make's signals into families such as water and tank, grounds and drip tray, brew unit, grinder and beans, heating, milk system and the board. None of them call for opening the housing or pulling a built-in out of its cabinet.