Want a regional phone & address? Pick your area.
Miele·Dishwashermedium severity
Miele Error Code F18
Flow meter error
Common Causes
- 1Flow meter malfunction
- 2Wiring fault
- 3Water pressure fluctuation
Flow meter replacement requires removing the base plate. Ensure the dishwasher is fully drained and disconnected from power and water before attempting.
Step-by-Step Troubleshooting
- 1
Check household water pressure stability (fluctuating pressure triggers this)
- 2
Inspect the flow meter (turbine type) for mineral buildup
- 3
Test flow meter output signal with oscilloscope or frequency counter
- 4
Verify wiring between flow meter and ELP control board
- 5
Descale the flow meter if in hard water area
Pro Diagnostic Tip
Miele flow meters use a Hall-effect turbine. Calcium deposits on the turbine blades cause erratic signals. In Sacramento hard water areas, descaling the flow meter often resolves intermittent F18/F19 errors.
You Might Also Notice
- •Dishwasher overfills or underfills
- •Inconsistent water levels between cycles
- •Error appears intermittently
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$300–$550
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Miele flow meter assemblyELP control board (if signal processing failed)
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
Licensed & Insured · 90-Day Warranty · Same-Day Service
Safety First — Know the Risks
High-voltage components and pressurized water lines create flood and shock risk. A single loose fitting can cause thousands in water damage. Our techs are licensed and insured — let them handle the risk.
Licensed & Insured · 90-Day Warranty · Same-Day Service
Ready to Get This Fixed?
Don't let error code F18 disrupt your day. A professional diagnosis takes about 30 minutes — and it's free when you proceed with the repair.
Licensed & Insured · 90-Day Warranty · Same-Day Appointments Available
4.85 (232 verified reviews)
Same-Day Appliance Repair
Fixed or It's Free
$89 → $0 Service Call & Diagnosis — offer ends May 31
Frequently Asked Questions
What does Miele error code F18 mean?
Miele error code F18 indicates: Flow meter error. This is a medium-severity issue affecting your dishwasher.
How do I fix Miele error code F18?
Check household water pressure stability (fluctuating pressure triggers this) Then, Inspect the flow meter (turbine type) for mineral buildup Then, Test flow meter output signal with oscilloscope or frequency counter There are 2 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my dishwasher has error F18?
Besides the error code on the display, common signs include: Dishwasher overfills or underfills; Inconsistent water levels between cycles; Error appears intermittently. If you notice any of these symptoms, check your dishwasher's display panel for error code F18.
How much does it cost to fix Miele F18?
Repair costs for Miele F18 typically range from $300 to $550 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.