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Miele Dishwasher Error Code F15

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026
⚠ High Severity 🔧🔧 Moderate DIY

Heating issue — water not heating to target temperature

The most common cause of the F15 error on a Miele dishwasher is heating element failure (~55% of cases); start with: test heating element.

💰 DIY cost: $25–$130 👨‍🔧 Pro cost: $250–$500 Save $225+ by doing it yourself
Miele Dishwasher error code F15 on the display panel
How the F15 code appears on a Miele dishwasher display

What Does Error Code F15 Mean on a Miele Dishwasher?

Heating issue — water not heating to target temperature.

F15 fires when the control monitors wash-water temperature during heating and the NTC sensor fails to confirm the target is reached within the allotted time. The board interprets the stalled temperature rise as a heating fault and halts the cycle to avoid running an ineffective wash. Unlike a drainage or fill code, F15 points specifically at the heat path: a failed flow-through heater, an out-of-range NTC sensor, or a defective heater relay on the control board.

Models affected: Miele dishwashers with a flow-through heating circuit, including the G 7000 Series and comparable earlier generations
What owners report: Owners commonly report this code appearing mid-cycle with lukewarm or cold interior water and dishes that come out greasy or poorly dried. It can occasionally be a false trigger from a marginal sensor reading, so testing the NTC before replacing the heater is often the quick win.

What Causes Error Code F15?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Heating element failure 55% of cases
  2. 2
    NTC temperature sensor failure 30% of cases
  3. 3
    Heater relay on board failed 15% of cases

How to Fix Miele Dishwasher Error Code F15

🔧🔧 Moderate DIY Est. time: 30–60 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Test heating element

    Disconnect and test continuity — should read 15–30 ohms.

    🔩 Miele dishwasher heater ($60–$130)
  2. 2

    Test NTC sensor

    At room temp: ~6k–7k ohms.

    🔩 Miele NTC sensor ($25–$60)
  3. 3

    Replace failed component

    Install appropriate replacement.

How to Reset Error Code F15

After repair, run full program to confirm.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Did this guide fix your appliance?

When to Call a Professional

Heating component replacement on Miele requires care to maintain waterproof sealing.

Average professional repair cost for this issue: $250–$500

Same Code on Other Brands

Error code F15 appears on these other brands too. See every brand that shows F15 →

Frigidaire logo
Frigidaire Oven F15
EOC / relay board communication loss — control fault

Find Replacement Parts

Use these links to find the exact replacement parts for your Miele Dishwasher:

🔩
Search PartSelect
Miele Dishwasher repair parts
🔧
Search RepairClinic
Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More Miele Dishwasher Error Codes

F11 Drainage fault — water not pumped out F13 Water intake fault — dishwasher not filling F70 Flow meter fault — water quantity sensor failure F12 Water intake fault at the start of a step F14 Heater pressure switch fault F24 Heating circuit fault — heater relay or temperature sensor

Frequently Asked Questions

Can I keep using my Miele Dishwasher when error F15 appears? +
It is not advisable. The dishwasher may still power on, but running it while F15 is active can worsen the heating fault or damage related parts. Treat it as a soon-as-possible repair.
What most commonly causes F15 on a Miele Dishwasher? +
Across reported Miele dishwasher repairs, the most frequent is heating element failure (55% of cases), nTC temperature sensor failure (30%), then heater relay on board failed (15%). Check them in that order before replacing any parts.
F15 keeps coming back after a reset — what should I check next? +
A reset only clears the stored F15 fault; if it returns, the heating problem is still present. Move on to the physical checks — test heating element, then test NTC sensor — since the code will reappear until the root cause is resolved. This is a moderate job — a multimeter and some disassembly are usually involved.
How much does it cost to fix Miele Dishwasher error F15? +
A DIY repair typically runs $25–$130 in parts, versus $250–$500 for a professional service call, so handling it yourself saves around $225. Expect the work to take roughly 30–60 minutes.
Which Miele Dishwasher models show error F15? +
F15 is documented on Miele dishwashers with a flow-through heating circuit, including the G 7000 Series and comparable earlier generations. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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