Kenmore Refrigerator Error R-DH

⚡ Quick Answer: The Kenmore refrigerator error code R-DH indicates a failure in the defrost heater system. This error typically appears during or after a defrost cycl... ⚠️ Difficulty Varies

What Does Error R-DH Mean?

The Kenmore refrigerator error code R-DH indicates a failure in the defrost heater system. This error typically appears during or after a defrost cycle when the defrost sensor fails to reach the necessary temperature of 40 °F. As a result, you may experience frost buildup and irregular cooling performance, which can affect the overall efficiency of your refrigerator.

Common Symptoms:

  • Error appears on display during or after a defrost cycle
  • Defrost cycle seems to fail to complete
  • Possible cooling irregularities following the error

Possible Causes

  • Defrost sensor not reaching required temperature during defrost cycle (medium)
  • Possible localized panel/dispenser control interpretation (less consistent) (low)

How to Fix Error R-DH

DIY Fix Basic checks and resets

  1. Record the error code and conditions when it appears
  2. Unplug refrigerator for 5–10 minutes, then reconnect to reset transient faults
  3. Ensure adequate airflow and allow a full defrost cycle to complete (avoid frequent door openings)
  4. Check if cooling performance improves after reset

Technician Only Inspect defrost system and sensor

  1. Verify defrost sensor operation with multimeter during a defrost cycle
  2. Check defrost heater, timer/board signals, and associated wiring harness for continuity or damage
  3. Replace defective defrost sensor or heater assembly as needed

Parts needed: defrost sensor/thermistor, defrost heater, control board (if needed)

🛑 When to Call a Pro:
  • Error persists after reset and warm‑cycle fails to reach proper temperature
  • Visible damage to wiring or components
  • Refrigerator fails to cool properly after basic checks

Technical Specifications

wattage 500W
component Defrost Heater
resistance 10-30 ohms
part_number W10620401
voltage_rating 120V AC

Common Questions

What does R-DH error mean on Kenmore refrigerator?

The R-DH error indicates a defrost heater failure, leading to frost buildup and cooling issues.

Can I fix Kenmore refrigerator R-DH error myself?

Yes, you can try resetting the fridge and ensuring proper airflow, but persistent issues may require professional help.

How much does it cost to fix R-DH error?

Repair costs for the R-DH error range from $50 to $250, including parts and labor.

When should I call a technician for R-DH?

Call a technician if the error persists after reset, or if you see visible damage or cooling failures.

Sources & References

Data last verified: 2026-02-19

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