LG Dryer Error Code dH
High temperature error — drum temperature exceeded safe limit
The dryer drum temperature has exceeded the safety threshold. Similar to HC — a blocked vent is the cause in the vast majority of cases.
What Does Error Code dH Mean on a LG Dryer?
High temperature error — drum temperature exceeded safe limit.
The dryer drum temperature has exceeded the safety threshold. Similar to HC — a blocked vent is the cause in the vast majority of cases.
What Causes Error Code dH?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Severely blocked exhaust duct 55% of cases
- 2 High-limit thermostat failure 25% of cases
- 3 Heater stuck on (relay failure) 20% of cases
How to Fix LG Dryer Error Code dH
- 1
Clean vent system thoroughly
Clean lint filter, full duct run, exterior cap.
🔩 Dryer vent brush kit ($15–$35) - 2
Test high-limit thermostat
Test for continuity after cleaning. Tripped thermostat = replace.
🔩 LG high-limit thermostat ($10–$25) - 3
Test thermal fuse
Blown fuse = no heat but motor runs.
🔩 LG thermal fuse ($8–$20)
How to Reset Error Code dH
After clearing vent and replacing failed components, unplug 5 minutes before restarting.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
When to Call a Professional
If vent is clear and thermostats are fine but overheating persists, heating element relay has stuck closed.
Related Error Codes
Find Replacement Parts
Use these links to find the exact replacement parts for your LG Dryer:
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