Bosch WTW87 (800 Series Heat Pump Dryer) Dryer Guide

<strong>Quick answer:</strong> The Bosch WTW87 (800 Series Heat Pump Dryer) Dryer Guide is a well-documented dryer with known repair patterns. Most common issue: Heat pump compressor failure. This is the definitive resource for Bosch WTW87 (800 Series Heat Pump Dryer) dryer owners facing a breakdown. Inside you will find ranked failure data, error code explanations, OEM part numbers, <a href="https://www.cpsc.gov/Recalls" rel="nofollow noopener" target="_blank">recall</a> alerts, and straightforward guidance on whether to repair or replace at every stage of the unit's life.

Models Covered in This Guide#

This guide covers the Bosch WTW87 (800 Series Heat Pump Dryer) series dryers, manufactured from 2019-2026. The following model numbers share the same platform, parts catalog, and common failure modes:

• WTW87NH1UC
• WTW87NH2UC
• WTW87NHUC

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 WTW87 (800 Series Heat Pump Dryer) dryers, 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. Heat pump compressor failure (8% of repairs)#

Heat pump compressor failure — most expensive compact dryer repair

Frequency: This issue accounts for approximately 8% of all service calls on the Bosch WTW87 (800 Series Heat Pump Dryer) series.

2. Self-cleaning condenser clogging despite auto-clean feature (18% of repairs)#

Self-cleaning condenser clogging despite auto-clean feature

Frequency: This issue accounts for approximately 18% of all service calls on the Bosch WTW87 (800 Series Heat Pump Dryer) series.

3. Condensate drain pump motor failure (12% of repairs)#

Condensate drain pump motor failure — water overflows in base

Frequency: This issue accounts for approximately 12% of all service calls on the Bosch WTW87 (800 Series Heat Pump Dryer) series.

4. AutoDry sensor strip oxidation (14% of repairs)#

AutoDry sensor strip oxidation — premature cycle end or clothes still damp

Frequency: This issue accounts for approximately 14% of all service calls on the Bosch WTW87 (800 Series Heat Pump Dryer) series.

5. Heat pump refrigerant line leak (6% of repairs)#

Heat pump refrigerant line leak — loss of drying efficiency over weeks

Frequency: This issue accounts for approximately 6% of all service calls on the Bosch WTW87 (800 Series Heat Pump Dryer) series.

Error Codes for Bosch WTW87 (800 Series Heat Pump Dryer)#

The Bosch WTW87 (800 Series Heat Pump Dryer) series may display the following error codes on its control panel or digital display. Error codes are your dryer'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 E01
• Error E04
• Error E08
• Error E32
• Error E63

If your Bosch WTW87 (800 Series Heat Pump Dryer) 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 WTW87 (800 Series Heat Pump Dryer) dryers. 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 Dryer Heating Element Replacement Guide
• Bosch Dryer Filter Replacement Guide

Recall Status#

There are no active recalls on the Bosch WTW87 (800 Series Heat Pump Dryer) 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 WTW87 (800 Series Heat Pump Dryer)?#

This is the most common question we hear from Bosch WTW87 (800 Series Heat Pump Dryer) owners. The answer depends on three factors: the age of the unit, the cost of the repair, and the cumulative repair history.

The WTW87 heat pump dryer has the highest repair ceiling in the compact dryer category due to the heat pump compressor.

General rule for the Bosch WTW87 (800 Series Heat Pump Dryer): 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>Based on our repair experience and customer feedback, the most important maintenance task for any dryer is keeping the lint path clean..</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 WTW87 (800 Series Heat Pump Dryer)#

Regular maintenance is the most cost-effective way to extend the life of your Bosch WTW87 (800 Series Heat Pump Dryer) dryer and prevent the common failures listed above. Follow these practices:

1. Clean the lint filter after every load — heat pump dryers are more lint-sensitive than conventional
2. Run the self-cleaning condenser verification monthly — check for lint accumulation despite auto-clean
3. Flush condensate drain line with warm water quarterly
4. Clean moisture sensor bars with rubbing alcohol monthly
5. Have heat pump refrigerant pressure checked annually for early leak detection

Related Troubleshooting Guides#

If your Bosch WTW87 (800 Series Heat Pump Dryer) is experiencing a specific symptom, these detailed guides walk you through the diagnosis process step by step:

• Bosch Dryer Not Heating
• Bosch Dryer Takes Too Long
• Bosch Dryer Noisy
• Bosch Dryer Leaking

What Are the Best Long-Term Ownership Tips?#

The most important maintenance task for any dryer is keeping the lint path clean. Clean the lint filter before every load, and clean the exhaust vent duct from the dryer to the exterior at least once per year. A restricted exhaust vent is the number one cause of both poor drying performance and dryer fires. If your dryer takes more than one cycle to dry a normal load, the exhaust vent is almost certainly restricted. Professional vent cleaning can prevent hundreds of dollars in repairs.

Need Professional Help With Your Bosch WTW87 (800 Series Heat Pump Dryer)?#

We've repaired thousands of Bosch WTW87 (800 Series Heat Pump Dryer) dryers 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 WTW87 (800 Series Heat Pump Dryer) 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.