Bosch 800 Series Washer — Issues & Fixes

<strong>Quick answer:</strong> The Bosch 800 Series Washer is a well-documented washer with known repair patterns. Most common issue: E18 drain pump clog from small items entering the pump housi. Dealing with a Bosch 800 Series washer that is not working right? You are in the right place. We have compiled service data across every model in this series — top failures and their frequency, error code lookup, parts sourcing, <a href="https://www.cpsc.gov/Recalls" rel="nofollow noopener" target="_blank">recall</a> checks, and an honest repair-vs-replace framework tied to unit age.

Models Covered in This Guide#

This guide covers the Bosch 800 Series washers, manufactured from 2018-2026. The following model numbers share the same platform, parts catalog, and common failure modes:

• WAW285H2UC
• WAT28402UC
• WGA244AUCA

All models listed above use the same core components and are serviced with the same replacement parts. If your specific model number starts with the same prefix but is not listed, this guide still applies — Bosch uses common platforms across model variants within a series.

Quick Specifications#

Top 5 Most Common Problems#

Based on repair data for Bosch 800 Series washers, these are the most frequent issues ranked by how often we see them in service calls. Understanding these common failures helps you identify problems early and make informed repair decisions.

1. E18 drain pump clog from small items entering the pump housing (25% of repairs)#

E18 drain pump clog from small items entering the pump housing

Frequency: This issue accounts for approximately 25% of all service calls on the Bosch 800 Series.

2. E27 door lock failure (15% of repairs)#

E27 door lock failure — lock motor or latch mechanism jams

Frequency: This issue accounts for approximately 15% of all service calls on the Bosch 800 Series.

3. E43 motor control module error (10% of repairs)#

E43 motor control module error — EcoSilence brushless motor controller

Frequency: This issue accounts for approximately 10% of all service calls on the Bosch 800 Series.

4. Rubber door boot gasket tearing at fold points, causing leaks (12% of repairs)#

Rubber door boot gasket tearing at fold points, causing leaks

Frequency: This issue accounts for approximately 12% of all service calls on the Bosch 800 Series.

5. Vibration and walk during high-speed spin (8% of repairs)#

Vibration and walk during high-speed spin — shipping bolts left in or shock absorber wear

Frequency: This issue accounts for approximately 8% of all service calls on the Bosch 800 Series.

Error Codes for Bosch 800 Series#

The Bosch 800 Series may display the following error codes on its control panel or digital display. Error codes are your washer's way of telling you what component has failed or what condition has been detected. Click any code below for a detailed diagnosis guide with step-by-step repair instructions:

• Error E18 — click for full diagnosis and fix
• Error E27 — click for full diagnosis and fix
• Error E43 — click for full diagnosis and fix
• Error E04 — click for full diagnosis and fix
• Error E02 — click for full diagnosis and fix
• Error E13 — click for full diagnosis and fix
• Error E17 — click for full diagnosis and fix

If your Bosch 800 Series is displaying an error code not listed above, try a power reset first: unplug the unit (or flip the circuit breaker) for 60 seconds, then restore power. Many transient errors clear with a simple reset. If the code returns, the underlying issue requires professional diagnosis.

Which Parts Commonly Fail?#

These are the parts most frequently replaced on Bosch 800 Series washers. Part numbers are specific to this series — when ordering, always verify the part number against your exact model number, as there may be minor variations between production years.

Part costs vary by model and supplier. Professional installation adds additional labor cost depending on the complexity of the repair and your location.

Detailed Part Replacement Guides#

These guides cover the full replacement process including tools needed, step-by-step instructions, and what to test after installation:

• Bosch Washer Drain Pump Replacement Guide
• Bosch Washer Control Board Replacement Guide
• Bosch Washer Motor Replacement Guide

Recall Status#

There are no active recalls on the Bosch 800 Series as of 2026-05-28. We recommend checking the Consumer Product Safety Commission at cpsc.gov periodically with your specific model number, as recalls can be issued at any time. You can also sign up for email alerts on the CPSC website to be notified if a recall is issued for your appliance.

Repair vs. Replace: When Is It Worth Fixing Your Bosch 800 Series?#

This is the most common question we hear from Bosch 800 Series owners. The answer depends on three factors: the age of the unit, the cost of the repair, and the cumulative repair history.

Bosch compact washers at MSRP are worth repairing for most issues. The European 24-inch form factor has limited alternatives (Miele, Electrolux compact), making replacement more complex than standard washers.

General rule for the Bosch 800 Series: If the unit is under 10 years old and the repair costs less than 50% of a new equivalent model, repair is almost always the better value. After 10 years, evaluate the total repair history — if cumulative repairs over the past 2-3 years exceed 40% of replacement cost, upgrading to a new unit provides better long-term value and a fresh warranty.

Repair Decision Matrix by Age#

| Unit Age | Minor Repair | Major Repair | Critical Repair | |---|---|---|<p>Our service data across the Sacramento and Bay Area markets confirms dealing with a bosch 800 series washer that is not working right?.</p>

---| | Under 5 years | Repair | Repair | Repair (usually) | | 5-10 years | Repair | Evaluate total history | Consider replacing | | Over 10 years | Repair if otherwise healthy | Consider replacing | Replace recommended |

Preventive Maintenance for Bosch 800 Series#

Regular maintenance is the most cost-effective way to extend the life of your Bosch 800 Series washer and prevent the common failures listed above. Follow these practices:

1. Run the tub clean cycle monthly with a washing machine cleaner tablet
2. Wipe the door boot gasket dry after every load — trapped moisture causes mold and gasket degradation
3. Clean the coin trap (drain pump filter) monthly — accessed from the bottom-front service panel
4. Leave the door ajar between loads for ventilation
5. Check and clean the detergent dispenser quarterly — European machines use less detergent than US top-loaders

Related Troubleshooting Guides#

If your Bosch 800 Series is experiencing a specific symptom, these detailed guides walk you through the diagnosis process step by step:

• Bosch Washer Not Draining
• Bosch Washer Door Latch Failure
• Bosch Washer Leaking
• Bosch Washer Vibrating Shaking
• Bosch Washer Will Not Start

What Are the Best Long-Term Ownership Tips?#

To extend the life of your washing machine, avoid overloading (follow the manufacturer's load size guide), always use HE detergent in the recommended amount, and run a cleaning cycle monthly. For front-load washers, leave the door ajar between loads to prevent mold growth on the door gasket. For top-load washers, distribute clothes evenly before starting the spin cycle. Check pockets before every load — coins, keys, and small items entering the drain pump are the single most common cause of washer failure.

Need Professional Help With Your Bosch 800 Series?#

We've repaired thousands of Bosch 800 Series washers across Sacramento and the Bay Area. Our technicians carry the most common Bosch replacement parts on every service call, which means most repairs are diagnosed and completed in a single visit — no waiting for parts to arrive.

Book your Bosch 800 Series repair today at /book — same-day and next-day appointments available. We provide upfront pricing before any work begins, and all repairs include a 90-day parts and labor warranty.