Kenmore Refrigerator Error Code F dH

F dH is a freezer defrost error code. It means the control board started a defrost cycle but the defrost sensor did not detect a temperature above 40°F (5°C) within 80 minutes. This points to a problem in the defrost circuit, such as a blown thermal fuse, a failed heater element, a faulty heater relay, or a jammed defrost drain.

It is not recommended to ignore this error for long. A non-functioning defrost cycle allows frost to accumulate on the evaporator coils, which will eventually block airflow and cause the refrigerator to lose cooling capacity in both the freezer and fresh food sections. Food safety can be compromised if temperatures rise too high. Address the issue as soon as possible.

Repair costs vary depending on which component has failed. A thermal fuse is generally an inexpensive part, typically in the range of $10 to $30 for the part alone. A defrost heater element usually runs between $20 and $60 for the part. If a relay board or control board is involved, parts costs can range from $50 to $150 or more. Adding professional labor typically brings the total repair cost to somewhere between $100 and $300 depending on your location and the technician's rates.

Some of the causes are DIY-friendly. You can manually defrost the unit and clear a frozen drain without special tools. Testing the thermal fuse and heater element for continuity requires a basic multimeter and involves working near electrical components, which many experienced DIYers can handle. Replacing a failed relay or heater element is a more involved repair, but straightforward for someone comfortable with appliance repair.

Resetting the refrigerator by unplugging it or cycling the power may temporarily clear the code from the display. However, the underlying fault in the defrost circuit will remain, and the code will return the next time a defrost cycle runs and fails. A reset alone is not a repair.