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
Thermistor resistance out of range; Restricted vent system causing excessive heat buildup; Heater malfunction; Thermostat failure; Clogged lint screen
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. Check the PCB and thermistor
- 2
2. Measure thermistor resistance: should be 10K ohms at 25C (77F)
- 3
3. Check thermostat 1 resistance: should be < 1 ohm (infinity means replace)
- 4
4. Check thermostat 2 resistance: should be < 1 ohm (infinity means replace)
- 5
5. Check thermostat 3 (thermal cut-off) resistance: should be < 1 ohm
- 6
6. Check heater resistance: SINGLE electric heater 10 ohms (PIN 1-3), DUAL gas heater 13 ohms (PIN 2-3)
- 7
7. Check exhaust vent system for restrictions or blockages
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung DV45T3400 Series Dryers (2020) (2020–present)
Related Error Codes
The dryer thinks the door is open while running
Your dryer is getting the wrong type of electrical power
The dryer's internal parts aren't communicating properly
Your dryer is getting the wrong voltage from the outlet
Your dryer's temperature sensor isn't reading correctly
A secondary temperature sensor is giving bad readings
The door switch isn't working properly
The dryer motor isn't spinning properly