Miele Dishwasher Error F12

⚡ Quick Answer: The Miele dishwasher F12 error code signals a water intake issue, typically due to a malfunctioning drain pump or insufficient water flow. This error ... ✅ DIY Fixable

What Does Error F12 Mean?

The Miele dishwasher F12 error code signals a water intake issue, typically due to a malfunctioning drain pump or insufficient water flow. This error often results in the dishwasher stopping its cycle, failing to fill properly, and may produce unusual sounds. Common causes include a closed water supply, clogged inlet filters, kinked hoses, or a faulty inlet valve. Addressing these issues quickly is vital to restore normal operation.

Common Symptoms:

  • Dishwasher displays F12 error and stops cycle
  • Dishwasher does not fill with water properly
  • Water intake seems insufficient or blocked

Possible Causes

  • Closed or insufficient water supply (stopcock/tap closed or very low water pressure) (high)
  • Clogged or dirty water inlet filter (high)
  • Kinked or obstructed water inlet hose (high)
  • Faulty water inlet valve (medium)

How to Fix Error F12

DIY Fix Basic user checks and fixes

  1. Ensure the water tap/stopcock supplying the dishwasher is fully open
  2. Check that the water inlet hose is not bent or kinked
  3. Turn off the dishwasher and clean the inlet filter at the water connection
  4. After cleaning, ensure filter and seal are correctly seated before restarting

Technician Only Technician-level diagnosis and repair

  1. Inspect the water inlet valve for mechanical or electrical faults and replace if defective
  2. Measure water pressure at the inlet to ensure it meets required pressure
  3. Inspect internal water inlet hose connections and replace damaged hoses
  4. Use diagnostic tools to verify proper operation of water inlet control circuits

Parts needed: water inlet valve, inlet hose and seal, pressure sensor or switch if applicable

🛑 When to Call a Pro:
  • If F12 persists after cleaning filters and checking hoses
  • If water pressure at inlet is confirmed sufficient but dishwasher still does not fill
  • If internal components such as inlet valve are suspected faulty

Technical Specifications

wattage 60W
component Drain Pump
resistance 10-20 ohms
part_number Miele 11212300
voltage_rating 230V AC

Common Questions

What does F12 error mean on Miele dishwasher?

F12 indicates a water intake fault, causing the dishwasher to stop and fail to fill properly.

Can I fix Miele dishwasher F12 error myself?

Yes, you can check the water supply, clean the inlet filter, and ensure hoses are not kinked.

How much does it cost to fix F12 error?

Repair costs range from $50 to $300 depending on parts and service rates.

When should I call a technician for F12?

Call a technician if F12 persists after basic checks or if you suspect internal component faults.

Sources & References

Data last verified: 2026-02-11

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