Error code · Refrigerator

Kenmore 795 Bottom-Freezer Refrigerator Code F dH / r dH: Defrost Did Not Warm Up

Medium · inspection needed

Code: F dH / r dH
Appliance: Refrigerator
Brand: Kenmore
Warranty: 30-day workmanship

What F dH / r dH means

Kenmore bottom-freezer refrigerators with model numbers starting 795 are an LG-built platform. On them, F dH or r dH tells you the defrost sensor never rose above 40 degrees F during a defrost cycle. That points at the defrost circuit, meaning the sensor, a fuse, the heater or the control board. You may see frost building on the back panel and temperatures drifting upward in the compartment.

Common causes of F dH / r dH

Defrost fuse that is open
Defrost heater not warming the evaporator
Defrost sensor or its wiring
Control board output for the defrost circuit

✓ One safe check you can try

1. Note whether F dH or r dH is showing, because it tells us which compartment the defrost belongs to. 2. Move perishable food to a cooler if the freezer feels warm. 3. Make sure nothing blocks the interior air vents. 4. Do not chip frost from the evaporator cover. Leave the panels alone and call us.

! Why to stop there

Which of the four defrost parts has stopped the warm-up
We check the sensor and its wiring first, then the fuse and heater, and the board last
Heavy frost already on the evaporator can mask the original cause until it is thawed

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Refrigerator codes

SH in Freezer DisplayKenmore 253 French-Door Refrigerator Showing SH in the Freezer Display: Shorted Sensor SH in Refrigerator DisplayKenmore 253 French-Door Refrigerator Code SH in Refrigerator Display: Shorted Fresh-Food Sensor SY CE / SY CFKenmore 253 French-Door Refrigerator Code SY CE / SY CF: Control and Display Communication SY EFKenmore 253 French-Door Refrigerator Code SY EF: Evaporator Fan Circuit F1 Lo / F1 HiKenmore 111 Bottom-Freezer Refrigerator Code F1 Lo / F1 Hi: Freezer Temperature Sensor F3 / r3Kenmore 111 Bottom-Freezer Refrigerator Code F3 / r3: Defrost Heater FD Lo / FD Hi / rD Lo / rD HiKenmore 111 Bottom-Freezer Refrigerator Code FD Lo / rD Hi: Defrost Sensor Readings i5 Lo / i5 Hi / iD Lo / iD HiKenmore 111 Bottom-Freezer Refrigerator Code i5 / iD: Ice Maker and Ice Room Sensors

F dH / r dHF dH / r dH questions

What is the 40 degree F figure?

During defrost the sensor is expected to pass 40 degrees F. When it never gets there, the control flags F dH or r dH, and we then check the sensor, fuse, heater and board in that order.

Does the letter F or r matter?

Yes. F relates to the freezer defrost and r to the refrigerator side, so we start in the matching area and bring the right sensor and heater to the visit instead of opening both sections blindly.

Can I just wait it out?

Frost keeps building while defrost is not working, so cooling gets worse over days and food is at risk. Early service keeps the repair smaller, because a thick frost layer takes time to melt before we can test.

Book a visit

Still seeing F dH / r dH?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 955-7152