Bosch Dishwasher Error E01

⚡ Quick Answer: The Bosch dishwasher E01 error code indicates a heating system or pump control circuit fault. This error typically interrupts operation and is charact... ✅ DIY Fixable

What Does Error E01 Mean?

The Bosch dishwasher E01 error code indicates a heating system or pump control circuit fault. This error typically interrupts operation and is characterized by the dishwasher stopping mid-cycle or failing to heat water. The main control board detects an issue with the heat pump motor circuit, which can also lead to a humming sound during operation. Immediate troubleshooting is recommended to ensure proper water supply and check for any visible wiring issues.

Common Symptoms:

  • Dishwasher stops mid-cycle or won’t start
  • Dishwasher fails to heat water
  • E01 code appears on display immediately or during cycle

Possible Causes

  • Heat pump motor circuit fault at main control board (high)
  • Faulty wiring or connection to heating/heat pump components (medium)
  • Defective heating element or associated components (medium)

How to Fix Error E01

DIY Fix Basic checks and resets

  1. Turn off dishwasher and reset power at circuit breaker for ~30 seconds
  2. Ensure water supply is on and normal pressure
  3. Verify no visible kinks or blockages in inlet hose
  4. Rerun a wash cycle to see if code clears

Technician Only Inspect and repair internal electrical components

  1. Disconnect power and access the control board area
  2. Inspect heat pump circuit wiring and connectors for damage or loose connections
  3. Test control board outputs for proper voltage to heat pump/heating elements
  4. Replace control board or faulty connectors as needed

Parts needed: Main control board, Wire harness/connectors, Heat pump or heating element components if faulty

🛑 When to Call a Pro:
  • If internal inspection indicates visible control board damage (burnt components)
  • If the error persists after wiring and basic electrical checks
  • If you are not experienced with appliance electrical systems

Technical Specifications

wattage 15W
component Water Inlet Valve
resistance 10-20 ohms
part_number Bosch 00440056
voltage_rating 120V AC

Common Questions

What does E01 error mean on Bosch dishwasher?

E01 error indicates a heating system fault, often causing the dishwasher to stop mid-cycle or fail to heat water.

Can I fix Bosch dishwasher E01 error myself?

Yes, you can perform basic checks like resetting the power and verifying the water supply.

How much does it cost to fix E01 error?

The estimated cost to fix the E01 error ranges from $150 to $400, depending on parts and labor.

When should I call a technician for E01?

Call a technician if there is visible control board damage or if the error persists after basic checks.

Sources & References

Data last verified: 2026-01-16

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