Bosch Dishwasher E02 Error Code — Meaning, Causes, and Fixes
If your Bosch dishwasher is displaying the E02 error code, it indicates a power module issue, typically related to the heat pump heater or zeolite heating system. This problem can interrupt the normal operation of your dishwasher, preventing it from completing a full wash cycle.
What Does the Bosch Dishwasher E02 Error Code Mean?
The E02 error code points to an electrical fault in the heating components of the dishwasher. This may involve:
- Heat pump heater relay failure
- Ground fault in the heat pump heater
- Ground fault in the zeolite heater
- Zeolite heater relay malfunction
These issues often trace back to the power module, which controls the dishwasher’s electrical operations.
Common Causes of Bosch Dishwasher E02 Error Code
Several potential issues can trigger the E02 error code:
- Defective heat pump heater
- Faulty zeolite heater
- Damaged or loose wire harness or electrical connections
- Malfunctioning power module
How to Fix the Bosch E02 Error
- Unplug the dishwasher and wait a few minutes before restarting it — this may clear temporary glitches.
- Inspect the wiring and connectors for any signs of damage, corrosion, or loose connections.
- Test the heat pump and zeolite heater with a multimeter to check for continuity.
- If the error persists, the power module may need to be replaced. This repair is best handled by a professional technician.
I am a master Appliance Repair technician with over 35 years of experience in the field. I am passionate about helping people troubleshoot their appliances and fix common problems. My website, appliancemode.com, provides a wealth of information on troubleshooting common appliance issues and deciphering error codes. This website aims to empower people to tackle appliance repairs themselves and save money on service calls.
