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Error code reference

Mabe Dryer Error Code E24

Shorted control thermistor.

Mabe codesMabe dryer codes

Shorted control thermistor.

First step from the service manual

Remove wires from the control thermistor. Measure resistance of the thermistor. If the reading is not 50K (+/-10%), replace thermistor. If the reading is within 50K (+/-10%) check wiring between thermistor and electronic control. If good, replace electronic control.

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

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What E24 means on a Mabe dryer

The E24 error code on a Mabe dryer indicates a shorted control thermistor. The control thermistor is a temperature-sensing component that monitors heat levels within the dryer and sends resistance-based readings to the electronic control board. When functioning correctly, the thermistor produces a resistance value near 50K ohms at room temperature. A short condition means the thermistor's resistance has dropped well below this expected range, causing the control board to detect an out-of-range signal and trigger the fault code.

The most direct way to confirm a shorted thermistor is to disconnect the wires from the component and measure its resistance with a multimeter. The acceptable reading is 50K ohms, plus or minus 10 percent. A reading significantly below this range points to a failed thermistor that must be replaced. If the thermistor measures within the acceptable range, the problem lies elsewhere in the circuit.

When the thermistor resistance checks out as acceptable, the diagnostic process shifts to the wiring harness connecting the thermistor to the electronic control board. Damaged insulation, pinched wires, or corroded terminals can create a short in the circuit and produce the same E24 fault. If the wiring also checks out as good, the electronic control board itself is the likely culprit and will need to be replaced. Addressing this fault promptly is important because inaccurate temperature sensing can lead to improper drying performance or overheating conditions.

Source: manufacturer service documentation.

Common causes of E24

  1. 01

    Failed control thermistor

    Part replacement

    The thermistor itself has shorted internally, causing its resistance to fall well outside the acceptable 50K ohm range. Disconnecting the thermistor and measuring its resistance with a multimeter will confirm this if the reading is significantly below the 50K target.

  2. 02

    Damaged wiring harness

    Wiring / connection

    Wires running between the thermistor and the electronic control board can develop shorts due to pinching, heat damage, or worn insulation. Visually inspecting the harness and checking for continuity at each connector will help identify this problem.

  3. 03

    Corroded or loose connectors

    Wiring / connection

    Corrosion or a loose fit at the thermistor connector or control board connector can cause resistance values to read incorrectly. Cleaning or reseating the connectors may resolve the fault if wiring and components are otherwise intact.

  4. 04

    Faulty electronic control board

    Part replacement

    If the thermistor measures within the acceptable 50K ohm range and the wiring is undamaged, the electronic control board may be misreading the sensor signal due to an internal component failure. Replacing the board is the next step when all other checks pass.

See the test procedure for each cause

Frequently asked questions about E24

What does E24 mean on a Mabe dryer?
E24 on a Mabe dryer indicates a shorted control thermistor. The control thermistor is a resistance-based temperature sensor, and its reading has fallen outside the acceptable 50K ohm range. The dryer's electronic control board detected this abnormal reading and triggered the fault code to alert you to a problem in the temperature sensing circuit.
Can I fix the E24 error myself?
A knowledgeable DIYer can diagnose this code by disconnecting the thermistor and measuring its resistance with a multimeter. If the reading is not within 10 percent of 50K ohms, the thermistor needs to be replaced. If the thermistor tests correctly, checking the wiring harness for damage is the next step before concluding the control board needs replacement. Working inside a dryer involves electrical components, so always unplug the appliance before beginning any inspection.
Is it safe to keep using my Mabe dryer when E24 appears?
It is not recommended to continue using the dryer while E24 is active. A shorted thermistor means the control board is not receiving accurate temperature data, which can result in improper heating cycles or potential overheating. Stopping use until the fault is diagnosed and repaired is the safer course of action.
Will resetting the dryer clear the E24 error code?
Resetting the dryer by unplugging it briefly may temporarily clear the display, but the E24 code will return if the underlying fault in the thermistor or its circuit is still present. A reset does not repair a shorted thermistor, damaged wiring, or a faulty control board. A proper repair is necessary to resolve the fault permanently.
How much does it cost to repair a Mabe dryer E24 error?
Repair costs depend on which component is at fault. A replacement thermistor is generally the least expensive part in the repair, with parts typically ranging from a modest to moderate cost. If the electronic control board requires replacement, parts costs will be significantly higher, and adding professional labor will increase the total. Getting a diagnosis first helps avoid paying for parts that are not needed.

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