dHLG Refrigerator — LG Refrigerator dH Error Code
Defrost cycle failed to complete
Severity
Critical
Difficulty
Moderate
Est. Cost
What's Happening
The refrigerator couldn't complete its automatic defrost cycle. Ice builds up on the evaporator coils, gradually reducing cooling performance. The defrost heater, defrost thermostat, or the control board's defrost timer may be at fault.
How to Fix It
Unplug the fridge for 24 hours to manually thaw the coils. If dH returns after thawing, the defrost heater or thermostat needs testing with a multimeter and likely replacement.
Frequently Asked Questions
What does dH mean on an LG refrigerator?
dH means the refrigerator failed to complete its defrost cycle. Ice is building up on the evaporator coils, which will gradually reduce cooling.
How do I fix the dH error on my LG fridge?
Unplug for 24 hours to manually thaw. If dH returns, the defrost heater or thermostat has failed and needs testing and replacement.
Is a dH error urgent on an LG refrigerator?
It's not immediately urgent, but ice buildup worsens over time. Within a week or two, cooling performance will noticeably decline. Get it fixed promptly.