Lg Refrigerator Error DH

⚡ Quick Answer: The LG refrigerator DH error code indicates a defrost heater failure, leading to frost buildup and inconsistent cooling. This issue arises from a malf... ⚠️ Difficulty Varies

What Does Error DH Mean?

The LG refrigerator DH error code indicates a defrost heater failure, leading to frost buildup and inconsistent cooling. This issue arises from a malfunction in the defrost cycle, which may involve the defrost heater, thermistor, or drainage problems. If you notice excessive ice in the freezer or the defrost cycle not completing, it's crucial to address these symptoms promptly.

Common Symptoms:

  • Error code DH appears on display
  • Excessive frost/ice buildup in freezer
  • Inconsistent cooling performance
  • Defrost cycle not completing

Possible Causes

  • Defrost system failure (heater/thermistor/fuse) (high)
  • Ice accumulation/blockage of drainage (medium)
  • Control board or timer malfunction impacting defrost cycle (medium)

How to Fix Error DH

DIY Fix Basic checks and reset

  1. Unplug refrigerator for ~5–10 minutes and plug back in to reset error
  2. Check for visible ice buildup in freezer/draint line
  3. Ensure doors are sealing properly and free airflow is maintained

Technician Only Diagnosis and repair of defrost system components

  1. Test continuity of defrost heater with multimeter; replace if open
  2. Inspect and test defrost thermistor and replace if out of spec
  3. Check defrost temperature fuse for continuity and replace blown fuse
  4. Inspect and clear drain line of ice blockages
  5. Verify control board and timer function; repair or replace if they fail defrost control

Parts needed: defrost heater, defrost thermistor, defrost temperature fuse, drain line components, control board

🛑 When to Call a Pro:
  • Error persists after basic reset and ice removal
  • Uncertain or unsafe performing electrical/component tests
  • Multiple components fail diagnostic tests

Technical Specifications

wattage 500W
component Defrost Heater
resistance 10-30 ohms
part_number LG EBF49827801
voltage_rating 120V AC

Common Questions

What does DH error mean on lg refrigerator?

DH error indicates a defrost heater failure, causing frost buildup and cooling issues.

Can I fix lg refrigerator DH error myself?

You can try basic checks like resetting the fridge and removing ice buildup.

How much does it cost to fix DH error?

Repair costs range from $100 to $400+, depending on parts and labor.

When should I call a technician for DH?

Call a technician if the error persists after a reset or if unsure about testing components.

Sources & References

Data last verified: 2026-01-10

User Comments (0)

Share your experience or solution below.

Be the first to comment!