LG Refrigerator dH error code
Refrigerator
Reviewed August 2025 · sources below
On LG refrigerators, error dH indicates: Defrost heater fault — frost can build up and block airflow. Start with a 5-minute power reset at the breaker, then follow the refrigerator-specific checks below before ordering replacement parts for dH. If the code returns on two consecutive cycles after a reset, treat it as a confirmed fault — not a one-time power glitch.
Buy the replacement part
MPN: W10316760
$18.99
Safe to keep using?
Stop using
No immediate safety hazard detected, but monitor during use.
- • Unplug the appliance before inspection.
- • Do not continue using the appliance until the cause is identified.
1 product recall may apply
Brand-level matches — verify your model.
Show
1 product recall may apply
Brand-level matches — verify your model.
- Notice
CPSC, LG Electronics and Sears, Roebuck and Co. Announce Recall to Repair Refrigerators
Jun 2005 · Confirm your model
Likely causes
Many codes resolve with cleaning, resetting, or reconnecting.
Check: Power-cycle the appliance and check for obvious blockages or loose connections.
Est. cost: $0–$0
Wear or electrical failure of an internal part.
Check: If basic checks fail, the faulty component likely needs replacement.
Est. cost: $0–$100
What it means
Defrost heater fault — frost can build up and block airflow.
How to fix it
- Unplug the refrigerator or turn off power at the breaker before inspecting any components.
- Reset LG dH: leave power off for 5 minutes, restore power, then restart. Confirm whether dH returns.
- Check the most common cause for dH: Defrost heater fault — frost can build up and block airflow.
- Inspect door gaskets, condenser coils, and listen for the evaporator fan when the compressor runs — heavy frost on the freezer back wall points to defrost failure before ordering a fan motor for dH.
- If a reset and basic checks don't clear the code, the fix often requires a replacement part (see recommended parts below).
- Reassemble, restore power, and run a test cycle. If dH returns, the faulty component likely needs replacement.
Call a pro when: Call a technician if you smell burning, see sparking, hear grinding from the motor, or the code returns after replacing the suspected part.
![[LG Refrigerators] Resolving An DH Error Code On A LG Refrigerator](/_next/image?url=https%3A%2F%2Fi.ytimg.com%2Fvi%2F5zCFqr1DzkM%2Fhqdefault.jpg&w=3840&q=75)
FAQ
What does dH error code mean on a LG refrigerator?
Defrost heater fault — frost can build up and block airflow.
How do I reset LG refrigerator dH?
Unplug the refrigerator or switch it off at the breaker for 5 minutes, then restore power and restart. A reset clears a stored dH after a glitch, but the code will return if the underlying fault is still present.
What part do I need for LG dH?
Often yes — error dH frequently points to a failed component. Check the recommended parts below for direct replacements.
Can I fix LG error dH myself?
Many dH errors can be fixed DIY if you're comfortable with basic tools. Start with the reset and steps above. If the issue involves electrical components or the code returns after replacing parts, call a professional.
LG dH on specific models
Other LG Refrigerator codes
Prevent this problem next time
- Follow manufacturer maintenance schedule
- Address small issues before they worsen
Sources
Manufacturer meaning
Defrost heater fault — frost can build up and block airflow.
FixApplianceCode guidance
Start with basic checks for LG dH before ordering parts.
Source type: Part database
Source: ModelPartFinder + FixApplianceCode editorial
Last reviewed: 2026-09-22
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