Thermador Dishwasher Error E04

⚡ Quick Answer: The Thermador Dishwasher E04 error code indicates a malfunction in the heating system, specifically faulty heater electronics detected during a self-t... ✅ DIY Fixable

What Does Error E04 Mean?

The Thermador Dishwasher E04 error code indicates a malfunction in the heating system, specifically faulty heater electronics detected during a self-test. This issue often results in the dishwasher displaying the E04 code, accompanied by poor water heating during cycles and unusual sounds. If the dishwasher fails to drain properly, it may signal a deeper problem within the heating components.

Common Symptoms:

  • Dishwasher displays E04 on control panel
  • Heater not functioning correctly
  • Poor water heating during cycle

Possible Causes

  • Faulty heater electronics detected during self‑test (high)

How to Fix Error E04

DIY Fix Basic Restart and Check

  1. Turn off dishwasher and disconnect power (unplug or switch off circuit breaker) for 30 seconds
  2. Restore power and attempt a new wash cycle

Technician Only Diagnose and Repair Heating System

  1. Verify error using service diagnostic mode if available
  2. Check heating element circuitry and heater control electronics for faults
  3. Test resistance/continuity of heating element and associated wiring
  4. Replace defective heating electronics component or control board as needed

Parts needed: Heating element assembly, Heater control electronics, Wiring harness, Control board if linked

🛑 When to Call a Pro:
  • If E04 persists after power reset
  • If heater element tests out of spec
  • If technician diagnostics show control electronics failure

Technical Specifications

wattage 60W
component Drain Pump Assembly
resistance 10-30 ohms
part_number Thermador 00716467
voltage_rating 120V AC

Common Questions

What does E04 error mean on Thermador Dishwasher?

E04 indicates a malfunction in the heating system, affecting water heating and operation.

Can I fix Thermador Dishwasher E04 error myself?

Yes, you can try a basic restart by turning off the dishwasher and restoring power after 30 seconds.

How much does it cost to fix E04 error?

Estimated repair costs range from $150 to $500+, depending on parts and labor.

When should I call a technician for E04?

Call a technician if E04 persists after a power reset or if diagnostics indicate control electronics failure.

Sources & References

Data last verified: 2026-03-25

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