Bosch Washer E2 Error Code: Causes and Fixes
Quick answer: Temperature sensor range issue
What you’ll notice
Water temperature does not reach the set value; wash halts or runs cold.
Bosch
Washer
Code E2
high severity
Bosch models: Bosch front-load washers (WAx/WGx in Europe; 300/500/800 series in North America) have a two-part filter: a flat mesh pre-filter and a cylindrical coin-trap, both behind the lower-front service flap. The EcoSilence brushless motor runs quietly — lower vibration than typical is normal, not a fault.
Common causes
- NTC temperature sensor reading outside calibrated range
- Heater element failed (machine can't raise temperature)
- Sensor wiring harness loose
Step-by-step fix
- Run a cold wash cycle — if it completes normally, the issue is heating-specific.
- Check for a tripped thermal protector on the heater element.
- Test NTC resistance with a multimeter if you have one (typically 10–50 kΩ at room temperature depending on brand).
Tools you may need
MultimeterScrewdriver set
Prevention
- Descale regularly to protect the heater element.
- Use appropriate wash temperatures to reduce element cycling.
When to stop DIY
Replace the NTC sensor or heater element if testing confirms the fault. Heater replacement is a moderate DIY task — call a technician if unsure.
FAQ
What does E2 mean on Bosch washer?
E2 usually indicates: Temperature sensor range issue.
Can I keep using the appliance with E2?
Use caution. Severity is high. Replace the NTC sensor or heater element if testing confirms the fault. Heater replacement is a moderate DIY task — call a technician if unsure.
How long does this fix usually take?
Typical first-pass troubleshooting takes 30–45 minutes.