Lg Refrigerator Error Er dH

⚡ Quick Answer: The LG refrigerator error code Er dH indicates a malfunction in the defrost system, often linked to a failure in the defrost heater circuit. This issu... ✅ DIY Fixable

What Does Error Er dH Mean?

The LG refrigerator error code Er dH indicates a malfunction in the defrost system, often linked to a failure in the defrost heater circuit. This issue typically results in excessive ice buildup on the evaporator or freezer walls, leading to inefficient cooling despite the refrigerator running. If the defrost cycle fails to raise the evaporator temperature, unusual sounds may also be heard, signaling a need for prompt attention.

Common Symptoms:

  • Error code Er dH displayed on control panel
  • Excessive frost or ice buildup on evaporator or freezer walls
  • Refrigerator not cooling efficiently despite running
  • Prolonged defrost cycle with no temperature rise

Possible Causes

  • Defrost system malfunction (heater, sensor, or fuse) (high)
  • Ice buildup or blocked drainage interfering with defrost detection (medium)

How to Fix Error Er dH

DIY Fix Basic user troubleshooting for Er dH

  1. Disconnect refrigerator from power for ~10 minutes and reconnect to attempt reset.
  2. Inspect freezer interior for heavy ice buildup; perform manual defrost by emptying and unplugging for several hours if safe.
  3. Check and clear any visible blockages in the drain hole or drain line.
  4. Ensure door seals are intact and freezer is not overpacked to reduce moisture buildup.

Technician Only Technician diagnosis and repair of defrost circuit

  1. Test continuity of defrost heater, defrost thermostat/sensor, and defrost fuse with a multimeter.
  2. Inspect drain tube and evaporator area for ice blockage; clear if necessary.
  3. Check control board signals to defrost heater circuit; replace board if defective.
  4. Verify temperature sensor readings and replace defective sensors.

Parts needed: Defrost heater, Defrost thermostat/thermistor, Defrost fuse, Control board (PCB)

🛑 When to Call a Pro:
  • If user-level manual defrost and reset do not clear the error
  • If ice buildup persists repeatedly after normal defrost cycles
  • If tests show component failures in defrost heater circuit

Technical Specifications

wattage N/A
component Defrost Sensor
resistance 10-30 ohms
part_number LG 5301JJ1001A
voltage_rating 120V AC

Common Questions

What does Er dH error mean on LG refrigerator?

The Er dH error indicates a defrost system malfunction, often causing ice buildup and inefficient cooling.

Can I fix LG refrigerator Er dH error myself?

Yes, you can try resetting the refrigerator and manually defrosting it if excessive ice buildup is present.

How much does it cost to fix Er dH error?

Repair costs for the Er dH error range from $80 to $300+, depending on parts and labor.

When should I call a technician for Er dH?

Call a technician if manual defrost doesn't clear the error or if ice buildup persists after defrost cycles.

Sources & References

Data last verified: 2026-01-11

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