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Miele·Dishwasherhigh severity
Miele Error Code F70
Leak detected / float switch activated
Common Causes
- 1Base tray leak
- 2Hose connection failure
- 3Door seal damage
F70 engages the Waterproof System safety shutoff. The dishwasher will not operate until the base tray is completely dry and the float switch resets. Do not override.
Step-by-Step Troubleshooting
- 1
Tilt the dishwasher back slightly to check for water in the base tray
- 2
If water is found, sponge it out and inspect all hose connections
- 3
Check the door seal (gasket) for tears, cracks, or food debris
- 4
Inspect the spray arm seals and sump gasket
- 5
Check for leaks at the water inlet and drain connections
Pro Diagnostic Tip
Miele Waterproof System uses a float switch in the base tray. Even a few tablespoons of water will trigger F70. After clearing water, run a short cycle and watch the base tray — the leak source may be very small.
You Might Also Notice
- •Water visible under dishwasher
- •Machine stops mid-cycle
- •Drain pump runs continuously
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$250–$550
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Door seal gasketBase tray float switchHose clampsSump gasket
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.
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Get Professional Help Now
Error code F70 is a high-severity issue that can cause further damage to your dishwasher if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does Miele error code F70 mean?
Miele error code F70 indicates: Leak detected / float switch activated. This is a high-severity issue affecting your dishwasher.
How do I fix Miele error code F70?
Tilt the dishwasher back slightly to check for water in the base tray Then, If water is found, sponge it out and inspect all hose connections Then, Check the door seal (gasket) for tears, cracks, or food debris 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 F70?
Besides the error code on the display, common signs include: Water visible under dishwasher; Machine stops mid-cycle; Drain pump runs continuously. If you notice any of these symptoms, check your dishwasher's display panel for error code F70.
How much does it cost to fix Miele F70?
Repair costs for Miele F70 typically range from $250 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.