LG Refrigerator Repair in Toronto — Freezer cold but fridge warm

• The most common 'freezer cold, fridge warm' fault on dual-evaporator LG French-door units (LFXS/LFXC, LMXS) is the fresh-food evaporator fan, and LG throws Er rF for it: per LG's own error-code list, rF means 'an abnormality in the refrigerator's fan motor... may be due to frost buildup.' Each compartment has its own coil, so a stalled or open fresh-food fan leaves the freezer holding while the fridge drifts to the 50s. The part is the EAU64824401 DC evaporator fan motor (supersedes EAU61505013; some LG units use the 12V Z40E12-platform EAU64824805 instead — confirm by model/serial) -- the same EAU648248-series DC-fan family LG uses for its RPM-feedback fridge fans, and it supersedes EAU63503707/EAU62863008. (Note that LG's Er FF is the freezer fan and Er IF is the ice-maker fan -- both are DC RPM-feedback fans in the same design family, but neither is the fresh-food coil fault.) Because it's a DC motor the board reads RPM feedback, so a blade jammed by frost reports the same Er rF as a dead motor; we thaw and spin-test the blade by hand first, and only condemn the EAU64824401 when it won't run on applied DC.
• On single-evaporator LG side-by-sides and many French-doors the cold for BOTH compartments comes off the freezer coil and is metered into the fridge by a motorized air damper, so a damper stuck shut is the classic no-code 'freezer fine, fridge warm' call. The part is the 4901JK1001B air damper assembly (on LFXS28566/LFXS24623-class units it is the 4901JB1006E/G damper). We ohm the damper stepper motor: LG's spec is 415 ohms +/-10% per coil pair (roughly 373-456 ohms across each red/yellow and blue/white pair), and a reading outside that band, or a flap iced/foam-sealed shut, condemns the assembly. In LG diagnostic Test Mode the damper is commanded open, so a damper that won't cycle open under test with a good motor reading points back at the harness or board, not the damper.
• A fresh-food side that warms while the freezer stays cold can be a lying sensor rather than a dead fan or damper: LG's error-code list publishes Er rS for a 'short or disconnection of the refrigerator sensor.' A drifted (not fully open) fridge thermistor reads 'cold enough,' so the board stops calling for damper-open / fresh-food-fan cooling and the box warms with no hard code. The part is the LG refrigerator temperature sensor 6500JB1001K; we resistance-test it against the board's temp curve at the J-connector before touching the fan or damper, because swapping airflow parts on a unit that's really got a bad sensor is a guaranteed repeat call.
• Frost choking the evaporator from a defrost-circuit failure presents first as fridge-warm-freezer-cold, because the fresh-food airflow path starves before the freezer does. LG codes this Er dH (defrost did not complete -- the unit ran past ~60 minutes without the coil reaching target). The repair is the MEE62805106 defrost-heater assembly (supersedes MEE62805103, the same heater behind our frost-buildup and not-cooling work), and on a frost-loaded box we test the whole circuit -- heater, the defrost sensor (LG's dS code flags a defrost-sensor short/open) and the bi-metal/thermal fuse -- as one unit, because a coil iced edge-to-edge cannot push air to the fresh-food vents no matter how good the fan and damper are.
• Frost that re-loads the coil and re-throws Er rF days after a thaw is an air-seal problem feeding the fan, not a fan you keep replacing. A torn or compression-set door gasket lets warm humid air in, which freezes onto the blade and re-jams the EAU64824401 within weeks; LG's own rF/FF guidance explicitly ties these fan codes to frost buildup and prescribes a full manual defrost with the door open (LG says roughly one day in summer, up to three days in winter) before re-testing. We fix the moisture source -- gasket reseat, door level/alignment -- alongside the fan, because clearing frost on a leaking door is a repeat call.
• Don't let a fridge-warm complaint trigger a compressor condemnation on the wrong code. Er FF is the FREEZER fan and Er CF is the CONDENSER fan (LG: 'the fan at the back, bottom of the refrigerator that discharges heat from the condenser') -- neither is the fresh-food airflow fault, and a true fridge-warm-freezer-cold call is almost never the linear compressor, since a failing TCA38151706 compressor warms BOTH compartments. We confirm the freezer is genuinely holding near 0F before chasing the rF/damper/sensor path, so we never quote a compressor on a single-compartment warm-up.
• On dual-evaporator LG units a fridge-only warm-up that resists every airflow fix can be a sealed-system fault on the fresh-food coil specifically: LG's evaporator tubing is prone to pinhole corrosion, and a partial loss can show as Er CL (LG: 'low side cycle leakage -- high possibility of refrigerant leakage from the evaporator'). The tell is a fresh-food coil that frosts only partway or sweats while the freezer coil looks normal, with airflow parts (EAU64824401 fan, 4901JK1001B damper, 6500JB1001K sensor) all testing good. We verify fan, damper and sensor are sound and the defrost circuit is clear before calling it a sealed-system job, because misreading a CL leak as a cheap damper swap burns a return visit.

LG freezer cold but fridge warm in Toronto — the local specifics

• The recurring LG-in-Toronto pattern on freezer-cold/fridge-warm calls is that it splits cleanly by platform: dual-evaporator French-doors (LFXS/LFXC/LMXS) almost always land on the fresh-food evaporator fan throwing Er rF, while single-evaporator side-by-sides land on a damper stuck shut with no code at all -- and a meaningful share of both are really a frost source (door gasket or an over-cold freezer setpoint) re-jamming the fan rather than a failed part. We routinely catch units where a previous tech swapped the fan but never fixed the gasket, so the same Er rF was back within weeks.
• We bring the EAU64824401 fresh-food/evaporator DC fan, the 4901JK1001B air damper assembly (plus the 4901JB1006E/G damper for LFXS28566/LFXS24623-class boxes), and the 6500JB1001K refrigerator temperature sensor to every freezer-cold/fridge-warm LG call, with the MEE62805106 defrost heater and a defrost sensor on the truck for the Er dH branch -- so once we've confirmed the fault on site (fan vs damper vs sensor vs frost source) it's a one-visit fix without a parts-order delay.

For the full LG refrigerator module — every fault, part number and code — see LG refrigerator repair in Toronto, and for the same fault across all brands the refrigerator freezer cold but fridge warm guide.