Miele Dishwasher Error F18
⚡ Quick Answer: The Miele dishwasher error F18 indicates a drainage issue, typically stemming from a defective water intake valve or a flow meter malfunction. This er... ✅ DIY Fixable
What Does Error F18 Mean?
The Miele dishwasher error F18 indicates a drainage issue, typically stemming from a defective water intake valve or a flow meter malfunction. This error often occurs when the dishwasher stops during the filling process, accompanied by a humming sound as it struggles to intake water. If F18 appears on the display, it’s crucial to check the water supply and inlet hose for any obstructions or damage.
Common Symptoms:
- Dishwasher stops during fill or early in cycle
- F18 appears on display when washing starts or during water intake
Possible Causes
- Defective water intake valve (high)
- Flow meter or related sensor failure (medium)
How to Fix Error F18
DIY Fix Basic checks before service call
- Ensure cold water supply valve to dishwasher is fully open
- Check inlet hose for kinks or visible damage
- Power cycle appliance (turn off for 5+ minutes and restart)
Technician Only Technician inspection and repair
- Diagnose and, if needed, replace the water intake valve
- Inspect and test flow meter sensor and wiring
- Verify related sensor inputs and ensure proper water flow calibration
Parts needed: water intake valve, flow meter sensor and harness
- Continuous F18 persists after basic checks
- Water isn’t entering normally
- Any sign of water leakage
Next step
Choose the next step for F18
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
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
- Typical part-only price
- $35 - $80
- DIY difficulty
- Easy
- Estimated time
- 15-30 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 Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
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 | 50W |
|---|---|
| component | Drain Pump |
| resistance | 30-50 ohms |
| part_number | Miele 6111210 |
| voltage_rating | 120V AC |
Common Questions
What does F18 error mean on Miele dishwasher?
F18 indicates a drainage issue, often due to a defective water intake valve or flow meter failure.
Can I fix Miele dishwasher F18 error myself?
Yes, check the cold water supply valve, inspect the inlet hose for kinks, and power cycle the appliance.
How much does it cost to fix F18 error?
The estimated repair cost ranges from $150 to $400, depending on parts and labor.
When should I call a technician for F18?
Call a technician if F18 persists after checks, water isn’t entering normally, or if there's any leakage.
Sources & References
- Miele USA support: Fault F18 (official)
- Miele Hong Kong support: Fault F18 (official)
Data last verified: 2026-07-25
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