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

  • Door not closed securely or obstructed by dish racks
  • Door latch misaligned or blocked by debris
  • Defective door latch sensor (Hall sensor or microswitch)
  • Damaged, loose, or broken door sensor wiring harness
  • Main electronic control board fault

What to try

Reset dishwasher power

Easy
  1. Turn off the circuit breaker supplying power to the dishwasher (or unplug the power cord if accessible) [1.1.9].
  2. Wait at least 30 to 60 seconds to allow the internal electronics and control board capacitors to discharge completely.
  3. Restore power by flipping the circuit breaker back on or plugging the appliance back in.
  4. Firmly close the dishwasher door and attempt to start a cycle to verify if the code clears.

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

Inspect door latch and clear physical obstructions

Easy
  1. Open the dishwasher door and check that all dish racks and silverware baskets are pushed fully back into the tub [1.2.8].
  2. Examine the rubber door seal along the perimeter for food residue, buildup, or displacement preventing a flush seal.
  3. Inspect the door latch mechanism and strike plate for stuck debris or physical damage.
  4. Wipe clean the latch opening and surrounding frame with a damp cloth.
  5. Close the door firmly until you hear or feel the latch fully engage.

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

Professional service for door sensor or wiring fault

Professional

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

  1. Disconnect electrical power to the dishwasher at the circuit breaker [1.1.9].
  2. If power cycling and checking door alignment do not resolve the error, discontinue use.
  3. Avoid removing inner door panels or handling internal wire harnesses.
  4. Contact Bosch Customer Support or an authorized appliance repair technician to diagnose and replace the door sensor, wiring harness, 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