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Error code reference

Thermador Range Error Code Er:06

WFR 2460 washer

Thermador codesThermador range codes

WFR 2460 washer: NTC short-circuit.

First step from the service manual

Rectify cable short-circuit / replace NTC.

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

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What Er:06 means on a Thermador range

Er:06 on a Thermador range indicates a short-circuit condition in the NTC (Negative Temperature Coefficient) temperature sensor associated with the WFR 2460 washer circuit. An NTC thermistor works by changing its electrical resistance in response to temperature: resistance drops as temperature rises. When the control board detects a resistance value that falls below the minimum threshold expected for the sensor's operating range, it interprets this as a short-circuit and triggers the Er:06 fault code to prevent unsafe operation.

The most direct cause of this fault is a short in the wiring harness or cable connecting the NTC sensor to the control board. Damaged insulation, pinched wires, or moisture intrusion can cause two conductors to contact each other, creating a low-resistance path that mimics a shorted sensor. In some cases, the NTC sensor itself has failed internally and is producing a near-zero resistance reading regardless of actual temperature conditions.

Diagnosis begins with a thorough inspection of the wiring harness running to the NTC sensor. Look for signs of heat damage, chafing against metal edges, or moisture contamination at connectors. If the cable checks out visually and electrically, the NTC sensor itself should be tested with a multimeter across its terminals. A shorted NTC will typically show very low resistance or near continuity where the sensor's specification would call for several thousand ohms at room temperature. Depending on the result, either the cable must be repaired or rerouted, or the NTC sensor must be replaced.

Source: manufacturer service documentation.

Common causes of Er:06

  1. 01

    Shorted wiring harness or cable

    Wiring / connection

    Damaged, pinched, or heat-degraded insulation on the NTC sensor cable can cause two wires to contact each other, creating a short-circuit signal at the control board. Inspect the full length of the harness for visible damage or areas where wires contact metal components.

  2. 02

    Moisture or corrosion at connector

    Wiring / connection

    Water or grease intrusion at the NTC connector can bridge the terminals and produce a false short-circuit reading. Disconnect the connector and inspect for corrosion, discoloration, or liquid residue.

  3. 03

    Failed NTC temperature sensor

    Part replacement

    The NTC thermistor itself can fail internally and produce near-zero resistance output, which the control board registers as a short-circuit. Testing the sensor with a multimeter will reveal a reading far outside the expected resistance range for its temperature.

  4. 04

    Chafed wire contacting chassis ground

    Wiring / connection

    A wire from the NTC circuit rubbing against the range chassis can short to ground, triggering Er:06. Check routing points where the harness passes through metal panels or around sharp edges.

  5. 05

    Faulty control board NTC input circuit

    Part replacement

    Less commonly, the control board's input circuit for the NTC signal can fail and falsely report a short even when the sensor and wiring are intact. This should only be considered after the sensor and harness have been confirmed good.

See the test procedure for each cause

Frequently asked questions about Er:06

What does Er:06 mean on a Thermador range?
Er:06 indicates that the control board has detected a short-circuit condition in the NTC temperature sensor circuit on the WFR 2460 washer system. The NTC sensor is a thermistor that reports temperature by varying its electrical resistance, and a short-circuit causes it to send an out-of-range low-resistance signal. The range will not operate normally until the fault is resolved by repairing the wiring or replacing the sensor.
Can I fix Er:06 on my Thermador range myself?
A knowledgeable DIYer can perform basic diagnostics such as visually inspecting the wiring harness, checking for moisture at connectors, and testing the NTC sensor with a multimeter. If a shorted wire is identified and accessible, it can potentially be repaired. However, if the NTC sensor itself requires replacement or the fault involves internal components, working with an appliance technician is recommended to ensure correct parts and safe reassembly.
Is it safe to use my Thermador range while Er:06 is displayed?
No, you should not attempt to operate the range while Er:06 is active. This fault indicates a compromised temperature sensor circuit, which means the appliance cannot accurately monitor temperatures during operation. Continuing to use the range under this condition could result in uncontrolled heating or other unsafe behavior. Resolve the fault before resuming use.
Will resetting the range clear the Er:06 error code?
A power reset by disconnecting the range from its power source for several minutes may temporarily clear the error display, but Er:06 will return if the underlying short-circuit in the NTC sensor or its wiring has not been corrected. The fault code is generated by an active hardware condition, not a software glitch, so a reset alone is not a fix.
How much does it cost to repair Er:06 on a Thermador range?
Repair costs vary depending on whether the issue is a wiring repair or a component replacement. NTC sensor parts generally range from modest to moderate in cost, while a service call and labor can add significantly to the total depending on your region and the technician's time required. If the control board is determined to be at fault, costs will be higher. Getting a diagnostic quote from a certified technician before authorizing repairs is advisable.

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