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Samsung · Dryer

Samsung Dryer HC Error Code

Heating circuit overheat—exhaust or internal thermal limit tripped

What this error means

Samsung HC indicates a heating circuit overheat condition—the control detected exhaust or cabinet temperature above safe limits and shut down heat to prevent fire hazard. On electric models DV45K6500EV and DVE45R6100C, HC most often follows restricted vent airflow that traps heat in the drum and duct, but can also mean a failed thermistor, blown thermal fuse DC47-00016A, or heating element short to ground. HC is distinct from tE (thermistor fault code) and dC (door open)—address vent hygiene before replacing electrical parts.

How HC is detected

Samsung dryers monitor outlet thermistor readings and thermal fuse status in series with the element relay. When vent restriction slows moisture removal, internal air temperature rises above profile and HC latches—often with clothes still damp because heat cut out early. DV45K6500EV owners frequently report HC after ignoring partial vent clogs; cleaning lint screen, blower housing, and exterior hood clears many cases without parts.

Thermal fuse DC47-00016A ($8–15) opens when the fuse element exceeds its rating—usually from sustained high heat due to vent blockage but also from element short to chassis. After HC, unplug the dryer and ohm the fuse across its terminals: continuity means fuse is good; open means replace fuse AND fix root cause or the new fuse blows immediately on next high-heat cycle.

Heating element short to ground trips HC through ground-fault detection on some Samsung boards. Access element from rear panel after unplugging; inspect coil for broken turn touching the housing. Multimeter test element terminal to chassis should read open (infinite ohms)—any low reading indicates short requiring element replacement.

Thermistor out of range can falsely report overheat. Samsung service charts list expected ohms vs temperature at the exhaust thermistor connector. Compare at room temp before replacing board. Related TE code may store alongside HC in fault memory—read stored codes on models with button combos (check DV45K6500EV label) before clearing.

Common causes

  • Lint screen and blower housing restriction trapping heat in drum and duct path
  • Crushed flex duct or stuck exterior hood damper raising exhaust temperature
  • Blown thermal fuse DC47-00016A from prior overheat event—opens circuit until replaced
  • Heating element short to ground from broken coil turn contacting housing
  • Failed exhaust thermistor reading high resistance or open to control board
  • Cycling thermostat stuck closed—rarer on Samsung than on older mechanical dryers
  • Control board heat relay welded shut—after fuse and element ruled out

Step-by-step fixes

  1. 1Unplug dryer; remove lint filter; vacuum filter slot and wash mesh if embedded lint present.
  2. 2Pull dryer forward; disconnect 4-inch duct from rear; vacuum blower wheel cavity visible through exhaust port.
  3. 3Inspect exterior hood damper from outside; clear lint; confirm free swing without binding.
  4. 4Access rear panel; locate thermal fuse DC47-00016A on blower housing; ohm for continuity—replace if open.
  5. 5Test heating element terminals to chassis—must read infinite ohms; replace element if short detected.
  6. 6Measure exhaust thermistor ohms at connector vs Samsung chart at room temperature; replace if out of spec.
  7. 7Reassemble duct with rigid or semi-rigid sections; run Timed Dry empty 10 minutes; confirm HC cleared before loading wet clothes.

When to call a technician

Schedule service when HC returns after vent cleaning, new thermal fuse, and verified good element isolation—control board heat relay or wiring harness damage may require OEM board. If fuse blows immediately on first heat after replacement, element short or vent restriction still exists; do not install multiple fuses without finding root cause.

Affected models

  • Samsung DV45K6500EV
  • Samsung DVE45R6100C
  • Samsung DV42H5000EW
  • Samsung DVE50R5200W
  • Samsung DV40J3000EW

Prevention & maintenance

  • Clean Samsung lint filter every load and deep-clean blower housing annually—HC rarely appears with open vent paths.
  • Replace white vinyl flex with rigid duct to prevent crush-related overheat on DV45K6500EV installs.
  • After any HC event, replace thermal fuse if open and verify element isolation before returning to high-heat cycles.
Medium45–120 minTypical parts: Thermal fuse DC47-00016A: $8–15; heating element: $60–120; thermistor: $15–30

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