Does this guide apply to your appliance?

Match the brand, device type and complete display code. The same code can mean something different on another product family or market; a series name does not confirm every model in that series.

Model and family references in this record:

Bosch 300 SeriesBosch 500 SeriesBosch 800 SeriesBosch 100 SeriesBosch Benchmark Series

Likely causes

  • Faulty heat pump motor circuit or relay on the main control board
  • Defective heat pump or circulation motor assembly
  • Damaged or loose wiring harness between the control board and motor
  • Temporary control module microprocessor glitch caused by a power surge

What to try

Perform a Hard Power Reset

Easy
  1. Turn off the dishwasher using the power button.
  2. Switch off the dishwasher's circuit breaker in your home electrical panel (or unplug the power cord if accessible).
  3. Wait 1 to 5 minutes to allow residual charge in the control module capacitors to drain completely.
  4. Restore power by turning the circuit breaker back on.
  5. Power on the dishwasher and start a short rinse or wash cycle to verify if the code has cleared.

Source for this check: www.bosch-home.com

Isolate Appliance and Request Professional Service

Professional

This is a service referral, not a do-it-yourself repair procedure.

  1. Disconnect the dishwasher from power at the circuit breaker if the E01 error code returns immediately.
  2. Shut off the water supply valve connected to the dishwasher.
  3. Locate your dishwasher model number (E-Nr) stamped on the top or side edge of the inner door.
  4. Contact Bosch Customer Support or an authorized appliance repair technician to diagnose and replace the faulty heat pump motor or main control module.

This step is marked professional. Stop if you are not qualified to continue.

Source for this check: www.bosch-home.com

The code returned or the check did not help?

Avoid repeated resets and do not select a replacement part from the code alone. Record the exact code, full model number, when it appeared, and the checks you tried with their results. Share these details with the manufacturer or service technician.

Disconnecting power does not establish that internal components are safe to touch. This guide does not authorize opening electrical components or bypassing safety devices.

Related error codes

Bosch E09Troubleshooting Bosch Dishwasher Error Code E09 (Heating Circuit Failure) Bosch E12Bosch Dishwasher Error Code E12: Limescale Build-up Bosch E14Bosch Dishwasher Error Code E14: Water Inflow/Flow Meter Issue Bosch E15Troubleshooting Bosch Dishwasher Error Code E15 Bosch E16Troubleshooting Bosch Dishwasher Error Code E16 Bosch E17Troubleshooting Bosch Dishwasher Error Code E17

Useful guides

Water left in the dishwasher: safe checks and when to call for serviceA small amount of clean water near the filter may be normal. Water across the tub floor, dirty standing water,... Dishwasher Not Drying? Check Settings, Loading, and Safe MaintenanceUse these owner-safe checks to improve drying, understand what moisture is normal, and know when to call a tec... Dishwasher Filter Care: What You Can Clean—and When to Call a TechnicianLearn how to identify a removable dishwasher filter, clean it safely, and recognize when a pump problem needs...

References