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Error code reference

Samsung Dryer Error Code HC

Invalid Heating Temperature (Over Heating)-heater relay stuck, thermistor out of spec, or motor switch stuck.

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What the HC error code actually means

Your Samsung dryer is shutting down because it detected that the inside of the dryer got too hot, or a part that controls the heat is not working correctly. This is a safety feature to prevent damage or a fire hazard. A technician will need to inspect the heating relay, temperature sensor, or motor switch to find the root cause.

Diagnostic procedure

The full HC procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check Main PBA heater relay, thermistor spec, and motor switch.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of HC

Ranked by how often they cause this code
  1. 1Stuck Heater Relay on Main PBA
  2. 2Thermistor Out of Specification
  3. 3Stuck Motor Switch
  4. 4Restricted Airflow or Blocked Exhaust Vent

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Questions people ask about HC

What does HC mean on a Samsung dryer?
HC stands for an invalid heating temperature condition, typically caused by overheating inside the dryer drum. Samsung's control board triggers this code when it detects that heat is exceeding safe operating limits or that the heating circuit is behaving abnormally. The most common culprits are a stuck heater relay on the Main PBA, a thermistor out of specification, or a stuck motor switch. This is a protective fault designed to prevent damage to internal components or a potential fire hazard.
Is it safe to keep using my Samsung dryer when the HC code is displayed?
No, you should not continue operating the dryer while the HC code is active. This fault indicates a potential overheating condition, which carries a risk of damage to internal components and, in serious cases, a fire hazard. Stop using the dryer until the root cause has been diagnosed and corrected.
How much does it cost to repair an HC error code on a Samsung dryer?
Repair costs depend on which component has failed. Replacing a thermistor is generally the least expensive fix, with parts typically in the range of $15 to $40 and modest labor costs if a technician is involved. A Main PBA replacement is the most costly scenario, with parts ranging from $100 to $250 or more depending on the model, plus labor. Getting a proper diagnosis before ordering parts helps avoid unnecessary expenses.
Can I fix the HC error code myself on a Samsung dryer?
Some steps, like clearing a blocked exhaust vent or cleaning a clogged lint filter, can be done without professional help. However, testing and replacing the heater relay on the Main PBA, measuring thermistor resistance, or inspecting the motor switch requires basic electrical testing tools such as a multimeter and comfort working with appliance wiring. If you are not confident working with internal electrical components, it is safer to call a qualified appliance technician.
Will resetting the dryer clear the HC error code?
Resetting the dryer by unplugging it for a few minutes may temporarily clear the HC code, but the fault will return if the underlying cause is not addressed. A stuck relay, out-of-spec thermistor, or stuck motor switch will continue to trigger the code on subsequent cycles. A reset is useful for confirming whether the fault is intermittent, but it is not a repair.

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