Bosch Washing Machine E18 Not Draining

Introduction

The dreaded E18 error code on your Bosch washing machine signifies a drainage problem. This means your washing machine isn’t emptying water properly after a wash cycle. It’s a frustrating issue that can leave your clothes soaking wet and your laundry room a mess. Addressing it promptly is crucial to prevent further damage to your appliance and potential water damage in your home. Let’s explore how to troubleshoot and resolve this common problem.

Common Causes of bosch washing machine e18 not draining

Several factors can contribute to a Bosch washing machine displaying the E18 error and failing to drain:

Clogged Drain Pump Filter: This filter catches lint, hair, and small objects that can obstruct water flow.
Blocked Drain Hose: A kinked, twisted, or blocked drain hose prevents water from exiting the machine.
Faulty Drain Pump: The drain pump is responsible for pumping water out. If it’s malfunctioning, it won’t drain effectively.
Clogged Drainpipe: The drainpipe where your washing machine empties can become clogged with debris.
Overuse of Detergent: Excessive detergent can lead to suds buildup, hindering drainage.
Air Lock in Drain Hose: An air lock can prevent the pump from functioning correctly.
Pressure Sensor Malfunction: A faulty pressure sensor might incorrectly signal that the machine is still full of water, preventing drainage.
Control Board Issues: In rare cases, a problem with the washing machine’s control board can cause drainage issues.

Symptoms Checklist

Here’s how to confirm if your Bosch washing machine is experiencing a drainage issue:

The washing machine displays an “E18” error code.
Water remains in the drum after a wash cycle.
The machine stops mid-cycle and won’t proceed.
You hear unusual noises during the draining phase.
Water drains very slowly or not at all.

How to Fix bosch washing machine e18 not draining Step-by-Step Guide

Follow these steps to troubleshoot the E18 error on your Bosch washing machine:

Unplug the Washing Machine: Disconnect the power cord from the outlet for safety.
Locate the Drain Pump Filter: This is typically located at the bottom front of the machine, behind a small access panel. You may need a flathead screwdriver to open the panel.
Prepare for Water Spillage: Place a shallow pan or towels under the access panel to catch any water that spills out.
Open the Drain Pump Filter: Carefully unscrew the filter cap. Be prepared for water to gush out.
Clean the Drain Pump Filter: Remove any lint, hair, coins, or other debris from the filter. Rinse it thoroughly with water.
Inspect the Drain Pump Housing: Shine a flashlight into the drain pump housing and remove any visible obstructions.
Reinstall the Drain Pump Filter: Screw the filter cap back on tightly. Ensure it’s properly sealed to prevent leaks.
Check the Drain Hose: Inspect the drain hose for kinks, twists, or blockages. Straighten any kinks and detach the hose from the drainpipe.
Flush the Drain Hose: Run water through the drain hose to dislodge any debris. You can use a garden hose for this.
Inspect the Drainpipe: Make sure the drainpipe where the hose connects isn’t clogged. You can use a plumbing snake to clear any obstructions.
Reconnect the Drain Hose: Reattach the drain hose to the drainpipe, ensuring a secure connection.
Check for Air Lock: Make sure the drain hose isn’t pushed too far down into the drainpipe, as this can create an air lock. The hose should be loosely inserted.
Reduce Detergent Use: Try using less detergent in future washes to minimize suds buildup.
Plug in the Washing Machine: Reconnect the power cord to the outlet.
Run a Test Cycle: Select a short wash cycle and observe if the machine drains properly.

Fix the Issue Without Buying Parts

Before considering replacement parts, try these free and simple fixes:

Reset the Machine: Unplug the washing machine for 5-10 minutes, then plug it back in. This can sometimes clear error codes.
Deep Clean the Washing Machine: Run an empty wash cycle with a washing machine cleaner to remove buildup.
Regular Maintenance: Clean the drain pump filter regularly (every 1-3 months) to prevent clogs.
Inspect Hoses Regularly: Check the drain hose and inlet hoses for cracks or damage periodically.

When Replacement Might Be Necessary

If the above steps don’t resolve the issue, the drain pump itself might be faulty and require replacement. A drain pump replacement can cost between $80 and $250, including the part and labor if you hire a technician. Another part that sometimes fails is the pressure sensor ($50-$150 for part and labor). While rare, a faulty control board could also be the culprit, but this is usually more expensive to replace ($200-$500). Consult with a qualified appliance repair technician for diagnosis and repair.

Safety Warning

Always unplug the washing machine before performing any maintenance or repairs.
Be careful when dealing with water, as it can create a slip hazard. Clean up any spills immediately.
If you’re not comfortable performing electrical repairs, consult a qualified appliance repair technician.

Tools You May Need

Flathead Screwdriver
Pliers
Shallow Pan or Towels
Flashlight
Plumbing Snake (optional)

FAQ

Here are some frequently asked questions about Bosch washing machine drainage problems:

Q: How often should I clean the drain pump filter?
A: It’s recommended to clean the drain pump filter every 1-3 months, depending on usage.
Q: Can I use bleach to clean the washing machine?
A: While bleach can disinfect, it can also damage some washing machine components. Use it sparingly and follow the manufacturer’s instructions. A washing machine cleaner is generally safer.
Q: My washing machine is still under warranty. What should I do?
A: Contact Bosch customer support or an authorized service provider for warranty repairs.
Q: How do I know if the drain pump is broken?
A: If you’ve cleared all clogs and the pump still doesn’t drain water, it’s likely faulty and needs to be replaced. You may also hear a buzzing or grinding sound from the pump.

Conclusion

Troubleshooting a Bosch washing machine with an E18 error might seem daunting, but by following these steps, you can often resolve the issue yourself. Remember to start with the simplest solutions, such as cleaning the drain pump filter and checking the drain hose. If you’ve exhausted all troubleshooting steps and the problem persists, it’s best to consult with a qualified appliance repair technician. Don’t hesitate to try these steps first to potentially save yourself time and money!