Samsung Samsung DVE45R6100W 7.5 cu. ft. Electric Dryer with Steam Sanitize+ HC4 Error Fix: High Exhaust Temperature (>70°C)

Error code HC4 on the Samsung Samsung DVE45R6100W 7.5 cu. ft. Electric Dryer with Steam Sanitize+ means: High Exhaust Temperature (>70°C). The exhaust air temperature has exceeded 70 degrees Celsius (158°F). This is measured at the exhaust thermistor. Same root cause as HC — restricted vent airflow. The dryer is specifically monitoring exhaust temperature as a secondary overheat protection. Clean the vent system thoroughly. Check the exhaust thermistor for accuracy if HC4 persists after vent cleaning.

The most successful fix is "Test and Replace Exhaust Thermistor if Needed" (medium difficulty, ~40 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Test and Replace Exhaust Thermistor if Needed") is rated medium difficulty and takes about 40 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Flashlight.

DIY cost: $10-$20. Professional repair typically costs $100-$160. Many homeowners save money by trying the top-ranked community fix first.

The Samsung Samsung DVE45R6100W 7.5 cu. ft. Electric Dryer with Steam Sanitize+ has 8 other known error codes, including: 3C (Motor Current Error), 9C1 (Voltage Error), 9E (Low Voltage), AC (Communication Error (alternate)), AE (Communication Error), and 3 more.

Error code HC4 also appears on 1 other Samsung model: Samsung DVG45R6100W 7.5 cu. ft. Gas Dryer with Multi-Steam. The fix may vary by model, so check each model's specific page for tailored repair steps.