A Cuisinart coffee maker may not pump water due to clogged tubes, defective water pump, airlock and mineral buildup in the internal components.
In this post, we will mention the possible things that are generally responsible for the issue. Besides, we will discuss their quick and easy solutions.
Read and learn.
Common Reasons for the Coffee Maker Not Pumping Water
These common reasons usually prevent the coffee maker from pumping water. Also, You can read to find all Cuisinart Coffee Maker Troubleshooting.
1. Clogged Water Line and Filter
Coffee grounds and impurities can gradually clog the coffee maker’s water line and filter. They are two common reasons that create obstructions and let the coffee machine not pump water.
How to fix:
Depending on the models, if your Cuisinart coffee maker’s filter is washable, rinse it well to remove the blockage. Otherwise, you have to replace it with a new one.
In the case of a clogged water line, you need to remove the water tank and check if any blockage exists in the line. Clean the line with a pipe cleaner and brush if the line is clogged. After removing the blockage, flush your coffee maker with water cycles.
Fixing Tips: Why Is My Cuisinart Coffee Maker Not Brewing?
2. Faulty Water Pump
A defective water pump can be an invisible reason that also causes the issue. In a coffee machine, the pump plays a major role in creating necessary pressure and running water through the system. When it becomes faulty, it fails to generate sufficient force, which can result in insufficient water pumping.
How to fix:
If you have the relevant skills and necessary tools, you can repair a faulty pump after inspecting it or replace it with a similar one. However, contacting Cuisinart customer care is advised first for necessary suggestions and warranty policies.
3. Mineral Deposits or Scale Buildup
If you notice carefully, the mineral buildup is a common reason that causes many problems in coffee makers. Minerals like calcium and magnesium in water form over time and create a layer that clogs many components of a coffee machine. As a result, the water cannot flow properly and the pump fails to generate the required pressure.
How to fix:
Cleaning and descaling a coffee maker routinely is the easiest solution to prevent the trouble. Moreover, it can help restore water flow and functionality by breaking the mineral layers.
4. Airlock in the System
Airlocking is another reason your coffee machine may not pump water as usual. Sometimes, it occurs in espresso machines due to a lack of proper priming. Airlock obstructs the path of water, similar to debris blockage. As a result, the coffee machine cannot pump water with optimal pressure.
How to fix:
There are several techniques to eliminate the airlock in Cuisinart coffee maker. But the plastic bag method and direct blowing are two common techniques you can try at home.
In the plastic bag method – find the spot where the water goes into the coffee machine. Fill a plastic bag with water and place it on the spot. Firmly press so it creates a seal. Now squeeze the bag gently, generating pressure to push out the trapped air. After releasing the air, run a brew cycle with fresh water to break any remaining air bubbles.
You can also directly blow the trapped air. Similarly, find the water passing spot and place your mouth on it. Blow forcefully into the tube so the air bubble goes out. You can repeat the process if necessary.
5. Faulty Control Board
A control board can be called the brain of an electric coffee machine. It controls various functions, including the water-pumping mechanism. Unfortunately, the control board can malfunction for many reasons, which will not perform properly. This is also a notable cause behind your Cuisinart coffee maker not pumping water.
How to fix:
As mentioned above, many things can be responsible for a faulty control board. So, you must inspect it first and take the necessary steps to restore its functioning.
How Can You Prevent the Issue?
A coffee maker can stop pumping water suddenly, even without any reason. So, early identification of any abnormality relevant to it is difficult. Whatever, you can follow these tips to keep your Cuisinart machine safe.
- Use clean filtered water to brew coffee. Ensure that water contains no visible debris which can block the water tubes.
- Descale your coffee machine using commercial descaling liquid or homemade water-vinegar solution each month. This will prevent the mineral layer buildup inside the machine.
- Use electrical safety devices to protect the pump and circuit boards from short circuits or power surges.
- If you have a Cuisinart espresso machine, properly prime it according to the manufacturer’s instructions to prevent air bubbles.
When Should You Meet a Professional?
You can fix minor problems at home, including airlock, mineral buildup and clogged water lines. However, professionals must inspect and fix critical issues, such as faulty water pumps and control boards.
Contact a technician if your coffee maker makes noise and overheats without water pumping. Also, check if your Cuisinart coffee machine still has a warranty so you can fix technical issues free of cost.
Frequently Asked Questions
Some common signs indicating your coffee machine is not pumping water include slow extraction, no water during brewing and a gurgling sound without water movement.
Hard water contains high mineral content. It can develop a mineral layer if used longer and clog the water pump, tubes, and other components.
Yes, it is possible. A faulty or stuck check valve can block the water flow, resulting in abnormal pumping action in the coffee maker.
