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Error code reference

Samsung Dryer Error Code hE

Invalid heating temperature detected; heater thermistor malfunction or gas supply issue on gas models.

Samsung codesSamsung dryer codes

Invalid heating temperature detected; heater thermistor malfunction or gas supply issue on gas models.

First step from the service manual

Check the heater thermistor; for gas models, check that gas is supplied continually.

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

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What hE means on a Samsung dryer

The hE error code on a Samsung dryer signals that the control board has detected an invalid or out-of-range temperature reading from the heater thermistor. The heater thermistor is a temperature-sensitive resistor located near the heating element (on electric models) or the burner assembly (on gas models). Its resistance value changes in a predictable way as temperature rises and falls, and the control board uses this data to regulate the heating cycle. When the board receives a reading that falls outside the expected parameters, it interprets this as a malfunction and halts the heating system, triggering the hE code.

On electric dryers, the most common cause is a failed or disconnected heater thermistor. A thermistor that has developed an open circuit, a short, or a damaged wiring connection will send an erratic or absent signal to the control board. On gas dryers, the hE code can also appear when gas is not being supplied consistently to the burner. Intermittent gas flow prevents the burner from maintaining proper temperatures, which the thermistor then reports as an abnormal reading. Confirming that the gas supply valve is fully open and that gas pressure is adequate is an essential early diagnostic step on gas models.

Beyond the thermistor itself, wiring harness damage between the thermistor and the control board can produce the same error. Corroded connectors, pinched wires, or loose terminals can all interrupt the signal path. In less common cases, the control board itself may be at fault if it is misreading a signal from an otherwise functional thermistor. Systematic testing of the thermistor resistance and the continuity of its wiring circuit is the recommended approach before replacing any components.

Source: manufacturer service documentation.

Common causes of hE

  1. 01

    Failed heater thermistor

    Part replacement

    The heater thermistor has developed an open circuit or short, causing it to send an invalid resistance reading to the control board. Testing the thermistor with a multimeter for proper resistance values will confirm whether it has failed.

  2. 02

    Interrupted or insufficient gas supply (gas models only)

    Wiring / connection

    If the gas supply valve is partially closed, the pressure is low, or the supply is intermittent, the burner cannot maintain the expected temperature range. Check that the shutoff valve is fully open and that other gas appliances in the home are operating normally.

  3. 03

    Damaged or disconnected thermistor wiring

    Wiring / connection

    Wiring between the heater thermistor and the control board can become corroded, pinched, or disconnected over time. Inspecting the wiring harness and connector terminals for continuity and visible damage can identify this issue without replacing the thermistor.

  4. 04

    Loose or corroded thermistor connector

    Wiring / connection

    A poor connection at the thermistor plug can cause intermittent or absent signal transmission to the control board. Reseating the connector and cleaning any corrosion from the terminals may resolve the error.

  5. 05

    Faulty control board

    Part replacement

    If the thermistor and all associated wiring test within normal parameters, the control board may be misinterpreting the thermistor signal. This is the least common cause and should only be considered after all other components have been ruled out.

See the test procedure for each cause

Frequently asked questions about hE

What does hE mean on a Samsung dryer?
The hE code on a Samsung dryer means the control board has detected an invalid temperature reading from the heater thermistor. This can indicate a failed thermistor, a wiring problem in the heating circuit, or on gas models, an issue with consistent gas supply. The dryer disables the heating system when this code appears to prevent unsafe operation.
Can I fix the hE error on my Samsung dryer myself?
Some causes of the hE error are DIY-friendly, such as checking that the gas supply valve is fully open, reseating loose connectors, or replacing a failed heater thermistor. Testing the thermistor with a multimeter and inspecting the wiring harness are reasonable first steps for a knowledgeable homeowner or technician. If the control board is the root cause, replacement is more complex and may be better suited to a professional.
Is the hE error on a Samsung dryer a safety concern?
The hE code is a protective fault, meaning the dryer has already stopped heating in response to the detected problem. On gas models, it is important not to ignore the code, since an issue with gas supply or a component in the gas heating circuit should be diagnosed promptly. Continuing to run the dryer while this code is active is not recommended until the cause is identified.
How much does it cost to repair a Samsung dryer showing hE?
Repair costs vary depending on the root cause. A replacement heater thermistor is generally an affordable part, with DIY costs typically ranging from $10 to $40 for the part alone. If a control board replacement is required, parts and labor costs can range from $150 to $350 or more depending on the model and service provider. Getting a diagnostic assessment before committing to a repair is always a good idea.
Will resetting my Samsung dryer clear the hE error code?
Unplugging the dryer for a few minutes and restarting it may temporarily clear the hE code, but if the underlying problem is not fixed, the code will return. A reset is useful for ruling out a one-time electronic glitch, but a persistent hE error requires diagnosing the heater thermistor, wiring, gas supply, or control board before the dryer will operate reliably again.

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