Error Code HC
Your dryer isn't heating properly or is overheating
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: HC
What This Means
Clogged lint filter restricting airflow; Restricted exhaust vent system causing heat buildup; Thermistor malfunction reading incorrect temperature; Thermostat failure not cycling heater properly; Heater element malfunction
What actually causes this:
Most often caused by a clogged exhaust vent that traps hot air inside the dryer, or the heating element has burned out.
First Thing to Check
Check your exhaust vent — disconnect it from the back of the dryer and look for lint buildup inside.
Parts Involved
How to Fix
- 1
1. Clean the lint filter thoroughly
- 2
2. Inspect exhaust vent system for restrictions, lint buildup, or blockages
- 3
3. Check outside exhaust hood damper — ensure it opens and closes freely
- 4
4. Measure thermistor resistance: should be 10K ohms at 25 degrees C (77 degrees F)
- 5
5. Check thermostat resistance: should be less than 1 ohm (infinity means replace)
- 6
6. Check heater resistance: DUAL heater — 13 ohms (PIN 2-3), 34 ohms (PIN 1-2)
- 7
7. If all components test normal, enter line test mode (HC4) for further diagnosis
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung DV52M7750 Series Dryers (2024) (2024–present)
Related Error Codes
Your dryer is getting the wrong voltage from the outlet
The dryer thinks the door is open while running
The dryer motor isn't spinning properly
A secondary temperature sensor is giving bad readings
The dryer's internal parts aren't communicating properly
Your dryer's temperature sensor isn't reading correctly
Your dryer is getting the wrong type of electrical power
The door switch isn't working properly