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Bosch · Dryer

E2

Condenser Fault

Severity
Medium

Seeing E2 on your Bosch Dryer display means the appliance self-diagnostic detected "Condenser Fault". Before calling a technician, work through the steps in this guide — the fix is often simpler than you think.

Owner's Summary

Bosch condenser dryers use a heat exchanger instead of an outside vent, and it needs regular cleaning. A clogged condenser is the most common cause of poor drying on these models — pull it out and rinse it under the tap monthly.

Symptoms

Bosch condenser dryer poor drying performance, E2 error code

Common Causes

  • Heavily clogged condenser unit
  • Condenser fan failure
  • Blocked condensate drain
  • Lint accumulation in condenser fins

How to Fix

  1. 1 Remove and rinse the condenser unit under running water
  2. 2 Check condensate water tank and drain for blockages
  3. 3 Clean condenser fins with a soft brush
  4. 4 Test condenser fan motor if cleaning does not resolve the issue

Tools You'll Need

Towels / Bucket

These are simple, low-risk fixes most homeowners can do with tools already in a basic toolbox.

Technical Explanation

The condenser unit cools moist air and condenses water vapor for collection. E2 is triggered when the control board detects insufficient temperature differential across the condenser, indicating restricted airflow or fan failure.

Is It Safe to Keep Using?

No safety risk, but performance will continue to degrade until the condenser is cleaned.

Technician's Pro Tip

Bosch recommends rinsing the condenser unit monthly under normal use. If E2 appears despite regular cleaning, check the condensate pump or gravity drain for blockages — a full water tank can also trigger this code on some models.

Related Codes

E1 — Bosch Washing Machine

Water Intake Fault

High
E18 — Bosch Washing Machine

Drain Fault — Water Not Pumping Out

High
E17 — Bosch Washing Machine

Water Intake Too Slow

Medium

Frequently Asked Questions

What does error code E2 mean on a Bosch Dryer?
Code E2 on a Bosch Dryer indicates "Condenser Fault." In practice, the most common trigger is heavily clogged condenser unit. Severity is rated medium, and typical repair costs range from $0 to $180.
Can I fix E2 myself, or do I need a technician?
Many cases of E2 can be resolved without a technician. The first step to try: remove and rinse the condenser unit under running water. If that doesn't clear the code, work through the remaining steps in the "How to Fix" section above before assuming a part needs replacing.
Is it safe to keep using my dryer with code E2 showing?
No safety risk, but performance will continue to degrade until the condenser is cleaned.
How much does it cost to repair E2 on a Bosch Dryer?
Repair costs for code E2 typically range from $0 to $180. Condenser cleaning: $0 DIY; Condenser fan: $40–$180. Costs on the low end usually reflect a DIY fix with no parts required, while the high end reflects a part replacement plus professional labor.
Estimated Repair Cost USD
$0 – $180

Condenser cleaning: $0 DIY; Condenser fan: $40–$180