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E:30/-20

E:30/-20 — Solenoid valve defective

Bosch · Washing Machines

What does E:30/-20 mean?

This error code points to a malfunction with the solenoid valve, a critical component for controlling water flow into the appliance. This issue typically requires professional service.

Common Causes

  • Solenoid valve defective.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Switch the appliance off, wait a few minutes, then switch it back on.

  2. 2

    If the error persists, contact the after-sales service for assistance.

  3. 3

    Avoid attempting to repair the solenoid valve yourself due to risk of electric shock and further damage.

Browse all codes in this manual (95)
Verified technical data. Last updated: April 2026

Related Faults

All other error codesAny other error codes displayed - Appliance malfunctionAppliance not workingAppliance is not working - No power or programme not startedAppliance odoursUnpleasant odours in the appliance - Bacterial growth
Source: Bosch Washing Machines
Open Manual (Page 38)Search more codes in this manual