Thermador Dishwasher Error E15
⚡ Quick Answer: The Thermador dishwasher E15 error indicates a water leakage detection issue, triggering a safety switch to prevent flooding. This error is often acco... ✅ DIY Fixable
What Does Error E15 Mean?
The Thermador dishwasher E15 error indicates a water leakage detection issue, triggering a safety switch to prevent flooding. This error is often accompanied by a continuous beeping sound and the dishwasher halting its cycle. Water accumulation in the base of the unit is the primary cause, leading to potential damage if not addressed promptly.
Common Symptoms:
- Dishwasher displays E15 on the control panel during or after a cycle
- Dishwasher stops functioning and won’t continue the cycle
- Water or moisture detected under or at the base/kickplate area
- Dishwasher won’t reset until the base is dry and leak condition resolved
Possible Causes
- Water leaked into the dishwasher’s base or base pan (high)
- Clogged or blocked drain or partially backed up drain line causing water to pool (medium)
- Malfunctioning or stuck float switch / leak sensor (medium)
How to Fix Error E15
DIY Fix Dry the base and reset the dishwasher
- Disconnect power to the dishwasher by unplugging or turning off the circuit breaker.
- Remove the lower kick plate to inspect the base area for water.
- Use towels, a sponge, or a wet/dry vacuum to remove any water in the base pan.
- Allow the base to dry completely (use a fan or wait several hours if needed).
- Ensure any visible leaks are addressed (hoses, seals, etc.) before restoring power.
- Restore power and run a short cycle to check if the E15 error clears.
DIY Fix Check for visible leaks and drain blockages
- Inspect door gasket and seals for damage or wear.
- Check the drain hose for kinks or blockages and clear if necessary.
- Look under the dishwasher for signs of external leaks (floor, hoses).
Technician Only Inspect internal components and repair faults
- Access the dishwasher base and verify the leak detection float assembly function.
- Test and replace the float switch or leak sensor if faulty.
- Check and service drain pump, hoses, and seals for integrity.
- Repair or replace any leaking components or cracked housings.
Parts needed: float switch / leak sensor, drain pump assembly, drain hose, door gasket / seal
- If you cannot locate the source of water intrusion or leakage
- If the E15 error persists after drying and basic checks
- If internal components like the float switch, drain pump, or hoses show signs of failure
- If there is significant water damage or electrical issues
Next step
Choose the next step for E15
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Float Switch
Detects the maximum water level to prevent overflow and potential flooding.
- Typical part-only price
- $15 - $40
- DIY difficulty
- Easy
- Estimated time
- 10-20 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
Door Gasket
Creates a watertight seal around the door to prevent leaks during operation.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 1500W |
|---|---|
| component | Float Switch |
| resistance | 0-5 ohms |
| part_number | 00715288 |
| voltage_rating | 120V AC |
Common Questions
What does E15 error mean on Thermador dishwasher?
E15 indicates a leak detection issue, stopping the dishwasher to prevent flooding.
Can I fix Thermador dishwasher E15 error myself?
Yes, you can dry the base and reset the dishwasher to address the issue.
How much does it cost to fix E15 error?
Repair costs range from $100 to $350+, depending on parts and labor.
When should I call a technician for E15?
Call a technician if the error persists after troubleshooting or if there are visible damages.
Sources & References
Data last verified: 2026-07-25
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