Bosch Dishwasher: error code E01, not draining

Professional Repair Guide

What is this symptom?

If your Bosch dishwasher displays error code E01 and is not draining, it may indicate an electrical issue hindering its operation. This problem can prevent the dishwasher from progressing through its wash cycle, leading to incomplete cleaning. Understanding the causes and solutions is crucial for effective troubleshooting.

Urgency: Medium

Important Tips for Bosch Models

  • Bosch official documentation defines E01 as a heat pump motor circuit fault at the main control board and recommends reset then professional assistance.

Possible Causes

Main control board / power module failure

How to Identify: E01 code persists after reset; no normal cycle progression; visible damage to board or burnt relays; other functions unresponsive

Part: Main control board / power module

Loose or damaged wiring/connections to control board or pump circuit

How to Identify: Intermittent error; visible loose connectors; error clears after reseating wiring

Part: Wiring harness / connectors

Faulty heat pump motor or related circuitry

How to Identify: Multimeter shows open/short conditions in pump motor; error persists even after board reset

Part: Heat pump motor / pump circuit

DIY Solutions

Hard reset the dishwasher

Easy 10 minutes
  1. Turn off the dishwasher circuit breaker or unplug the unit.
  2. Wait 5–10 minutes to allow the control board to discharge.
  3. Restore power and attempt to start a cycle.
⚠️ Safety First: Ensure power is fully disconnected before working on the unit.

Inspect and reseat wiring harness connections

Moderate 20–30 minutes
Tools Needed: Screwdriver, Flashlight
  1. Disconnect power to the dishwasher.
  2. Remove access panel to reach the control board area.
  3. Visually inspect and firmly reseat connectors to the board and pump circuitry.
  4. Restore panels and power, then test cycle.
⚠️ Safety First: Work only with power disconnected.

Professional Repairs

Replace main control board / power module

Estimated Cost: $150 - $400+

Replace heat pump motor or related circuitry

Estimated Cost: $100 - $300+

When to Call a Professional

E01 error persists after power reset and wiring checks
Visible damage to control board or electrical components
Uncertainty about safely accessing internal components

Preventive Maintenance

  • Periodically reset the dishwasher by power cycling: Transient electrical glitches
    Frequency: as needed when odd errors appear
  • Inspect wiring and connectors during regular service: Loose connections leading to control errors
    Frequency: annually

Frequently Asked Questions

Why is my Bosch Dishwasher Error code E01, not draining?
The E01 error indicates an electrical/control issue, often linked to a failed main control board or wiring problems.
How do I fix Bosch Dishwasher Error code E01, not draining myself?
Try a hard reset by unplugging the dishwasher for 5-10 minutes or inspect and reseat wiring connections.
How much does it cost to fix Error code E01, not draining?
Professional repairs can cost between $150 and $400+ for control board replacement or $100 to $300+ for heat pump motor issues.
When should I call a technician for Error code E01, not draining?
If DIY solutions do not resolve the issue, or if you're uncomfortable with electrical repairs, call a technician.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

75%
DIY Success Rate Difficulty: DIY

Common Issues Reported by Users

  • Clogged drain filter
  • Faulty drain pump
  • Blocked drain hose

User Suggested Solutions

  1. Check and clean the drain filter. Remove the bottom rack, locate the filter, and clean it under running water to remove debris.

  2. Inspect the drain pump for blockages. Access the pump and check for any debris that may be obstructing it. If necessary, replace the pump.

  3. Examine the drain hose for kinks or clogs. Disconnect the hose from both ends and flush it with water to ensure it's clear.

Analysis based on 1 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Bosch Dishwasher SHX4ATF5UC/21, Error Code E01.

Community Discussions

Error Code E01, dishes are wet, soap is unused

Replacing the drain pump resolved the issue.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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