The coffee machine only makes half a cup of coffee

Possible reasons why an automatic coffee machine only produces half a cup of coffee include: malfunctioning sensors, clogged filters, insufficient water supply and clogged flow channels.

Non-functioning sensors can be caused by dirt or other debris on the sensor probes, improper calibration settings, or damage to internal wiring. A faulty sensor may not be able to accurately measure the correct amount of coffee needed to brew a full cup.

The filter can become clogged when used coffee grounds build up over time and the size of the holes in the basket decreases, which impedes the flow of water. As a result, only half of the cup can be made because there is not enough pressure to push the water through the filter.

Insufficient water supply can be caused by a leaking reservoir or a blocked pipe, for example due to mineral deposits. It can also lead to a loss of pressure and produce only half a cup of coffee.

Finally, clogged flow channels can prevent hot water from reaching the coffee grounds, leading to blockages. This can reduce the flow rate and produce only half a cup of coffee.

Regular cleaning, maintenance and checking of your automatic coffee machine should help to identify any such problems before they cause undue disruption. If you are experiencing these problems on a regular basis, it may be time to take your coffee machine in for repair or consider replacing it with a new one.

If your automatic coffee machine is only producing half a cup of coffee, it is important to identify the root cause and take corrective action as soon as possible. Regular maintenance and checking should help prevent major problems in the future.