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Kenmore Refrigerator Er dH Error Code — Defrost Heater Fault

Kenmore Refrigerator Error Code Reference

Er dH

Kenmore Refrigerator Er dH Error Code — Defrost Heater Fault

Kenmore Refrigerator

Medium Severity
Warning: If your Kenmore appliance displays the Er dH error code and you are unsure how to proceed, turn off the appliance and contact a qualified technician. Some errors require professional repair to avoid further damage or safety risks.

The Er dH error code on a Kenmore refrigerator indicates a defrost heater fault. The defrost heater melts frost buildup on the evaporator coils on a regular cycle. When this heater fails, frost accumulates on the coils until they become completely blocked with ice, eventually causing the refrigerator to stop cooling.

Causes

  • Failed defrost heater element
  • Blown defrost thermostat or thermal limiter
  • Failed defrost control relay on the main board
  • Wiring fault in the defrost circuit

Troubleshooting

  1. Manually defrost the freezer completely (unplug for 24–48 hours with doors open).
  2. After defrost and restart, monitor for Er dH recurrence.
  3. If the error returns within 8–24 hours, the defrost heater, thermostat, or control board requires professional diagnosis and repair.

Need Professional Help with Error Code Er dH?

Our highly trained Kenmore technicians can diagnose and fix this error code quickly — using factory-certified parts and a 30-day warranty.

Other Kenmore Refrigerator Error Codes

ER GF Kenmore Refrigerator Er gF Error Code — Ice Maker Fill Error ER DF Kenmore Refrigerator Er dF Error Code — Defrost Sensor Fault ER FS Kenmore Refrigerator Er FS Error Code — Fan Short Circuit ER SS Kenmore Refrigerator Er SS Error Code — Sensor Short ER OS Kenmore Refrigerator Er OS Error Code — Open Sensor ER FZ Kenmore Refrigerator Er FZ Error Code — Freezer Sensor Error
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