LG Refrigerator Freezing Food: Causes and Fixes

Quick Answer: Let the Location of the Ice Guide You#

Most likely: the motorized damper between the freezer and fridge is stuck open, letting sub-zero air pour in continuously — the single leading cause at about 30% of cases, and it freezes the upper-rear shelf first. Where your food freezes is the fastest diagnostic on an LG. Upper-rear points to the damper; only the door shelves points to the DoorCooling+ vent; uniform overcooling everywhere points to a drifting thermistor or the control board; and items frozen only against the back wall are touching the coldest surface in a single-evaporator design. Map the frozen zone before you touch a setting.

Likely Causes at a Glance#

Walking Through the Diagnosis#

Start at the damper, since it causes most cases. It is a small motorized flap that meters freezer air into the fridge on command from the board, and it jams open from gearbox wear or from ice forming around the flap after humid door openings. Remove the upper-rear vent cover and look: if the compartment is below 35°F and the damper is sitting open, the motor has failed in the open state. If freezing is gradual and creeps in over weeks with no error code, suspect the thermistor — the board's only sense of actual temperature. When it drifts to read "warmer than reality," the board keeps cooling a compartment that is already cold. Compare the display set point to an independent thermometer; if the real temperature is several degrees below the set point, the sensor is lying, and you can confirm by measuring its resistance at a known temperature (about 10 kΩ on LG's NTC sensor in a 32°F ice bath).

When only the door shelves freeze, the culprit is DoorCooling+, the dedicated vent that blows cold air down across door items. On some LRMVS models its intensity tracks the main compartment level and is not separately adjustable, so an aggressive setting (below 36°F) or a cool room can push door shelves below freezing — raise the set point by 1–2°F and move milk and produce to interior shelves. Items frozen only where they touch the rear wall are not a fault at all: the evaporator sits behind that wall, so keep a one-inch gap. Finally, if overcooling comes with display glitches, erratic fans, or dead buttons, the control board is ignoring the thermistor or holding the damper relay energized, and it needs replacing. As an immediate measure while you diagnose, move dairy and produce to the warmer lower shelves and raise the set point 3–4°F. The models that draw the most freezing complaints are the LRMVS3006S and LRMVS2806S (DoorCooling+ intensity), the LRFXS2503S (early thermistor drift), and the LRMXS2806S (damper-motor longevity).

Repair or Replace? The Short Version#

Two of the top causes cost nothing — moving items off the door shelves or the rear wall, and nudging the set point up — and even the damper assembly and thermistor are inexpensive parts on a fridge that otherwise runs cold and healthy. Only the control board is a larger line item, and it still lands well under the price of a new refrigerator. Because freezing is a temperature-regulation fault rather than a failing sealed system, it is worth fixing rather than replacing; if the damper or thermistor is bad, have it swapped before food loss adds up — book an EasyBear technician.

Frequently Asked Questions#

Is it normal for an LG refrigerator to freeze items near the back?#

Mild freezing of items pressed against the rear wall is a known trait of single-evaporator designs, including LG French Door models, because the evaporator runs directly behind that wall — keep about an inch of clearance and it stops. It is only a fault when food freezes on open shelves that have proper spacing, which points to the damper or thermistor.

Why does my LG freeze food in summer but not winter?#

In hot weather the compressor runs at higher speeds and produces colder air, which can overwhelm a damper that regulates adequately under light load but lets too much cold through under heavy demand. If the seasonal pattern is strong, have the damper checked for a partial stick rather than assuming the setting is wrong.

Will LG cover food lost to a freezing refrigerator?#

LG's standard warranty covers repairing the defective part but does not usually reimburse spoiled food. Your homeowner's insurance may cover the loss above your deductible, so photograph the damage and keep receipts. Either way, fixing the damper or thermistor promptly is the cheapest way to stop the losses.