E18 Error in Bosch Washing Machine

The E18 or F18 error on the display of a Bosch washing machine is one of the most common problems. It means that the washing machine cannot drain the water within the allotted time.

Usually, you can solve this problem yourself in a few minutes!

Main Causes of the E18 Error:

1. Clogged drain filter. The most frequent cause. Small items (coins, buttons, threads) get stuck in the filter, blocking the water outflow.
2. Kink or blockage in the drain hose. If the hose is pinched, the water physically cannot leave the tub.
3. Clogged siphon. If the machine is connected to a sink, the problem might be in the siphon itself.
4. Faulty drain pump. If the pump has burned out or is blocked, it will need to be replaced.

How to Fix the Problem Yourself?

Try using our interactive assistant for quick diagnostics:

Step-by-Step Guide to Cleaning the Filter:

1. Unplug the washing machine from the power outlet.
2. Open the bottom panel (usually located at the bottom right).
3. Place a container to catch the water or put down a rag.
4. Carefully unscrew the filter counterclockwise.
5. Clean the filter from debris and wash it under running water.
6. Check the pump impeller (located behind the filter) — it should rotate freely.
7. Screw the filter back in and close the panel.

If the error persists after cleaning the filter, check the drain hose for kinks. If this doesn’t help either, the pump might have failed, and you will need the help of a specialist.