Miele Dishwasher F11 Error Code: Drain Check Valve Fix (#5750095)
Quick Answer: The F11 error code on a Miele dishwasher means water is not draining from the wash cabinet properly. In 90% of cases, either a foreign object is jamming the impeller under the Non-Return Check Valve (#5750095) or the steel ball inside the valve is stuck with grease.
⚠️ Miele's Unique Steel Ball Check Valve: Unlike other brands, Miele uses a removable clip-in Non-Return Valve (#5750095) with a heavy metal ball bearing inside the sump! When the rubber ring around that ball swells up from cooking oil, it blocks the drain and triggers F11.
#1 Most Common Fix: Miele Dishwasher Non-Return Drain Check Valve
Official OEM Part Number: #5750095
⏱️ Install Time: 2 Minutes (Snap-clip inside bottom tub!) | 💰 Avg Cost: $28.00 – $39.00
Step 1: Free 2-Minute Reset & Test
- Open the Miele dishwasher, remove the bottom rack, and twist out the triple filter combination.
- Locate the elongated plastic clip with a raised arch on the left side of the sump pit—this is the Non-Return Valve (#5750095). Unclip the wire bail and lift it straight up.
- Clean out any glass or seeds underneath the drain pump impeller blades and rinse the steel ball inside the valve.
- If the rubber gasket inside the valve is swollen or deformed, snap in a new #5750095 Check Valve.
Step 2: Symptom & Part Number Lookup Table
| Symptom | Required OEM Part | Difficulty & Cost | Action |
|---|---|---|---|
| Water left standing in bottom of Miele dishwasher with F11 error; rubber seal inside valve is swollen Cause: Worn out Non-Return Check Valve Assembly | Miele Non-Return Check Valve#5750095 | 1-Minute Snap-In (Zero tools) Est: $32.99 | Check Price on Amazon → |
| Sink drain is clear and check valve is new, but F11 still triggers after every rinse Cause: Worn Heater Pressure Relay Switch failing to detect empty sump | Miele Heater Pressure Switch#6996820 | Moderate DIY (25 min) Est: $64.00 | Check Price on Amazon → |
Frequently Asked Questions
Why does my Miele dishwasher throw F11 even when all the water HAS drained out?
Miele dishwashers verify that the tub is empty by checking the Heater Pressure Switch (#6996820) mounted on the circulation pump. If grease clogs the pressure switch diaphragm, it stays closed after draining, tricking the computer into displaying F11.