Bosch Dishwasher E01 Error: Heating Element Failure
What Does Bosch Dishwasher Error Code E01 Mean? Error code E01 on a Bosch dishwasher signals that the heating element has failed. The dishwasher cannot heat water to the temperature required by the selected wash program, which means dishes are not cleaned or sanitized properly. Common Causes The most frequent cause is a burned-out heating […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. The dishwasher can still run, but dishes will not be properly sanitized. Avoid using for baby bottles or items requiring high-temperature sterilization.
Can I reset the code?
No. A power reset rarely resolves this error. If E01 persists after a reset, the heating element or its circuit needs professional repair.
When to stop immediately?
Stop if you notice: Dishes consistently come out cold and greasy, Error code reappears immediately after reset.
Symptoms You May Notice
Dishes come out greasy and cold
Food residue remains on dishes because water never reaches proper wash temperature.
Water stays cold throughout cycle
The water inside the tub does not heat up at any point during the wash program.
Cycle completes but dishes are not clean
The dishwasher runs through the full cycle but dishes remain dirty and unsanitized.
Possible Causes
Burned-out heating element
The heating element has failed due to mineral buildup or age and no longer generates heat.
Requires ProfessionalFaulty control board relay
The relay on the main control board that powers the heating element has failed.
Requires ProfessionalWiring harness damage
Corroded or disconnected wires between the control board and heating element.
Requires ProfessionalSafe Checks You Can Do
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1
Run a hot water test
Run the kitchen faucet until hot water flows before starting the dishwasher. This ensures the unit receives hot water from the start.
If dishes are still cold after a cycle, the heating element is likely the issue.
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2
Check the water supply temperature
Verify your water heater is set to at least 120°F (49°C). Low incoming water temperature can worsen the problem.
Use a kitchen thermometer to test faucet water temperature.
Tools required -
3
Reset the dishwasher
Turn off the dishwasher at the breaker for 60 seconds, then restore power and run a test cycle.
A power reset can clear temporary electronic glitches but won't fix a burned-out element.
When to Call a Professional
Contact a qualified technician if:
- Heating element has visible damage or discoloration
- Error persists after power reset
- Multimeter shows no continuity on the heater circuit
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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