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Error code reference

Miele Refrigerator Error Code F116

Freezer evaporator NTC faulty (resistance corresponds to temperature below -66°F/-55°C or above 140°F/60°C).

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Freezer evaporator NTC faulty (resistance corresponds to temperature below -66°F/-55°C or above 140°F/60°C).

First step from the service manual

Replace freezer evaporator NTC.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What F116 means on a Miele refrigerator

F116 is a temperature sensor fault code specific to the freezer evaporator NTC (Negative Temperature Coefficient thermistor). This sensor is responsible for monitoring the temperature at the evaporator coil inside the freezer compartment and relaying that data to the control board. The control board uses this reading to regulate the compressor cycle, defrost timing, and fan operation. When the resistance value reported by the NTC falls outside the expected range, corresponding to a temperature below -66°F (-55°C) or above 140°F (60°C), the control board interprets this as a sensor fault and triggers F116.

NTC thermistors work by changing their electrical resistance in a predictable way as temperature changes. A reading that corresponds to below -66°F typically indicates a short circuit or near-short condition in the sensor or its wiring, causing abnormally low resistance. A reading corresponding to above 140°F typically indicates an open circuit, a broken wire, or a failed sensor with abnormally high or infinite resistance. Both conditions make it impossible for the control board to get accurate temperature data, which can cause improper cooling cycles or a complete shutdown of normal operation.

The most direct corrective action is replacement of the freezer evaporator NTC. Before replacing the sensor, technicians should inspect the wiring harness connected to the NTC for visible damage, corrosion, pinching, or loose connector pins, as wiring faults can produce the same out-of-range resistance readings without the sensor itself being defective. Confirming actual sensor resistance with a multimeter at the connector closest to the sensor can help isolate whether the fault originates at the sensor or in the wiring path back to the control board.

Source: manufacturer service documentation.

Common causes of F116

  1. 01

    Failed freezer evaporator NTC sensor

    Part replacement

    The NTC thermistor itself has failed internally, producing a resistance value outside the valid operating range. This is the most common cause and warrants direct replacement of the sensor.

  2. 02

    Open circuit in NTC wiring harness

    Wiring / connection

    A broken wire or disconnected connector between the NTC and the control board creates infinite or very high resistance, which the control board reads as a temperature above 140°F (60°C). Inspect the harness for breaks, especially near routing points where wires may flex or chafe.

  3. 03

    Short circuit in NTC wiring harness

    Wiring / connection

    Damaged wire insulation can cause conductors to contact each other or a ground, producing abnormally low resistance that the control board interprets as a temperature below -66°F (-55°C). Look for pinched or melted insulation along the harness route.

  4. 04

    Corroded or loose connector pins

    Wiring / connection

    Moisture intrusion into the NTC connector can cause corrosion on the pins, increasing contact resistance unpredictably and pushing the reading out of the valid range. Cleaning or reseating the connector may resolve the fault if the sensor and wiring are otherwise intact.

  5. 05

    Faulty control board

    Part replacement

    In rare cases, the control board's input circuit for the NTC sensor malfunctions, causing it to report an invalid reading even when the sensor and wiring are good. This should only be considered after the sensor and wiring have been confirmed to be in proper condition.

See the test procedure for each cause

Frequently asked questions about F116

What does F116 mean on a Miele refrigerator?
F116 indicates that the freezer evaporator NTC temperature sensor is reporting a faulty reading. Specifically, the sensor's resistance corresponds to a temperature below -66°F (-55°C) or above 140°F (60°C), both of which fall outside the physically plausible operating range. This prevents the control board from accurately managing freezer cooling cycles. The fault points to either a failed sensor, a wiring issue, or a connector problem.
Can I fix F116 on my Miele refrigerator myself?
A knowledgeable DIYer can inspect the wiring harness and connector for visible damage, corrosion, or loose pins and may be able to resolve the fault without parts. If the wiring checks out, replacing the freezer evaporator NTC sensor is the recommended next step. However, accessing the evaporator area typically requires removing freezer panels, so comfort with appliance disassembly is helpful. If you are unsure, a qualified technician can diagnose and replace the sensor efficiently.
Is it safe to keep using my Miele refrigerator with an F116 error?
The F116 fault means the refrigerator is operating without reliable freezer temperature data, which can lead to improper cooling or compressor behavior. Food safety may be at risk if the freezer is not maintaining proper temperatures. It is advisable to check that the freezer is still holding adequate temperature and to arrange for repair promptly rather than continuing to rely on the unit without addressing the fault.
How much does it cost to repair an F116 error on a Miele refrigerator?
If only the NTC sensor needs replacement, parts and labor typically fall in the range of $100 to $250, depending on the specific model and local labor rates. If wiring repairs or connector replacement are also needed, costs can increase modestly. Control board replacement, if required, would be a more significant expense, generally ranging from $300 to $600 or more for parts and labor.
Will resetting my Miele refrigerator clear the F116 error code?
A reset may temporarily clear the F116 code from the display, but the fault will return if the underlying sensor or wiring problem has not been corrected. The control board continuously monitors the NTC resistance and will re-trigger the error as soon as it detects an out-of-range reading again. Resetting without repairing the root cause does not restore reliable freezer operation.

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