Bosch Dishwasher Error Codes
10 published guides for Bosch dishwasher appliances. Check the model-specific scope before using a guide.
Find the spelling on your display
Alternate spellings are listed beside the main code when our database groups them in the same guide. They are not interchangeable on every model. Open the guide to check applicability, likely causes and owner checks; a code identifies a condition, not automatically a part to replace.
| Code / recorded aliases | Guide | Severity |
|---|---|---|
| E01 E1 | Bosch Dishwasher E01 — Power Module or Pump-Control Fault | high |
| E06 E6 | Bosch Dishwasher E06 — Door Latch Sensor Fault | medium |
| E09 E9 | Bosch Dishwasher E09 — Heating Circuit Failure | high |
| E15 | Bosch Dishwasher E15 — Water Detected in the Base | high |
| E18 | Bosch Dishwasher E18 — Low or No Water Supply | medium |
| E21 E20 | Bosch Dishwasher E20 or E21 — Circulation Pump Problem | high |
| E23 | Bosch Dishwasher E23 — Drain Pump Electrical Fault | high |
| E24 | Bosch Dishwasher E24 — Dishwasher Not Draining | medium to high |
| E25 | Bosch Dishwasher E25 — Drain Pump Blocked | medium to high |
| E28 | Bosch Dishwasher E28 — AquaSensor Calibration Fault | low to medium |
Before arranging service
Save a photo of the full code and rating label, and note when the warning appears: at startup, during operation or at the end. Tell the technician whether the appliance completes a cycle and what you already checked. This helps distinguish a recurring fault from an isolated warning.
A low severity label is not a safety clearance. If there is smoke, a burning smell, a leak near electrical parts or a gas smell, stop using the appliance and seek appropriate help. Use repair-cost ranges only after the fault is understood.