Kenmore Refrigerator Error Code dH

The dH code indicates a defective defrost heater circuit. It is triggered when the refrigerator detects that the defrost heater is not functioning properly during a defrost cycle. The fault can be caused by an open heater element, a blown thermal fuse, or a disconnected wiring connector in the defrost circuit.

The dH code is not an immediate safety emergency, but it should be addressed promptly. Without a functioning defrost system, frost accumulates on the evaporator coils and blocks airflow, eventually causing the refrigerator and freezer to warm up. This puts food safety at risk if the issue is left unresolved for an extended period.

Unplugging the refrigerator and restoring power may temporarily clear the dH code from the display, but it will return if the underlying fault in the defrost heater circuit has not been repaired. The code is generated because the control board detects an actual circuit fault, so the root cause must be corrected to permanently resolve the error.

A knowledgeable DIYer can address this code by unplugging the refrigerator, removing the grille fan assembly, and using a multimeter to test the defrost heater and thermal fuse for continuity. If either component tests open, it can be replaced. If the wiring connectors are simply loose, reseating them may resolve the issue without any parts replacement.

Repair costs vary depending on the specific faulty component. A replacement defrost heater element typically costs between $15 and $60 for the part, while a thermal fuse is usually in the $5 to $20 range. If a technician is needed for diagnosis and replacement, total repair costs including labor generally range from $100 to $250 depending on your location and the parts required.