LG Refrigerator Repair in Toronto — Running constantly / never shuts off

• The most common LG 'runs and never shuts off' fault we isolate is the condenser fan, and LG codes it Er CF: per LG's own error-code list, CF means 'the feedback signal is less than 65 seconds during the fan's operation... the fan at the back, bottom of the refrigerator that discharges heat from the condenser.' When that fan stalls (debris in the blade) or its motor opens, the condenser can't shed heat, the box can't pull down, and the linear compressor runs continuously trying to make up the difference. The real part is the EAU63103202 condenser fan motor (LG also used EAU63103301/EAU63103302 on adjacent platforms -- confirm by model). We pull the lower rear panel, spin-test the blade by hand and clear any obstruction first, then condemn the motor only if it won't run on applied voltage, because a jammed-but-good motor throws the same Er CF as a dead one.
• A fridge that runs nonstop with NO error code is most often a dirty/blocked condenser coil starving the same heat-rejection path -- LG's runs-constantly guidance puts dirty coils at the top of the list. Dust, pet hair and (in Toronto high-rise installs) lint pack the coil bank at the bottom-rear, so the compressor never reaches its cut-out setpoint and cycles indefinitely. This is a no-part clean, not a compressor job, and we verify by checking the coil and the EAU63103202 fan are clear and the compressor's amperage and run/rest pattern normalize after cleaning -- condemning a sealed system on a coil that's simply choked is the classic overcharge of an unnecessary repair.
• A lying temperature sensor makes the compressor run too frequently or never stop: the LG thermistor 6500JB1001K (RepairClinic 1352710 / AppliancePartsPros AP4443777) reports compartment temperature to the main board, and when it drifts warm it tells the board 'still too warm,' so the board keeps calling the compressor even though the box is at temp. LG also publishes Er rS for a hard 'short or disconnection of the refrigerator sensor' and Er FS for the freezer sensor. We resistance-test the 6500JB1001K against the board's temp curve at the J-connector before touching the sealed system, because a drifted (not fully open) sensor often throws no code while running the compressor continuously -- and we confirm which sensor the model uses, since 6500JB1001K is the freezer-side thermistor on many platforms.
• A defrost-circuit failure presents as runs-constantly because frost blankets the evaporator, airflow chokes, and the compressor runs flat-out against a coil it can't cool through. LG codes this Er dH -- per LG, 'the unit spent more than 1 hour trying to defrost... if this temperature is not reached within 1 hour, the dH error code will display.' The OEM fix is the MEE62805106 defrost-heater assembly (PartSelect PS12391926; supersedes MEE62805103 -- the same heater behind our frost-buildup and not-cooling work), tested as a circuit with the defrost sensor and bi-metal/thermal fuse. Note LG integrated the heater and sensors into one connector on the newer MEE62805106 -- splicing the old plug gives wrong resistance and re-throws dH -- so we land the OEM connector intact.
• A worn or compression-set door gasket makes the compressor run constantly by leaking warm, humid Toronto kitchen air into the box -- the board never sees cut-out temp, so it never stops the compressor (and the infiltrating moisture also re-frosts the coil and re-loads the EAU64824401 evaporator fan). The LG part is an MDS-series door gasket (e.g. MDS64172918 / MDS64172922 -- the 'MDS gaskets' family in our LG parts table), confirmed by model. We do the dollar-bill drag test around the perimeter and check door level/alignment before quoting, because a $40-$80 gasket reseat or swap is routinely misdiagnosed as a failing compressor on a unit that simply won't stop running.
• A linear compressor that has lost capacity (or a low-side refrigerant leak) runs continuously and never reaches setpoint -- the signature LG sealed-system runs-constantly fault on 2014-2018 units. LG codes an evaporator leak Er CL: per LG, 'a CL E or E CL error code indicates that there is a low side refrigerant leak... high possibility of being refrigerant leakage from the evaporator.' The OEM fix when the compressor itself is weak is the TCA38151706 linear-compressor service kit (lgparts.com), which REQUIRES the LG software update kit CJT30000002 -- skip the flash and the new compressor won't drive correctly. Before quoting, we decode the serial for LG's extended Inverter Linear Compressor coverage (10-year parts-and-labour on units built 2014-2022 following the Rosen v. LG settlement and warranty extension), which can turn a covered TCA38151706 into a labour-only ticket.
• Don't let runs-constantly trigger a compressor condemnation on the wrong code: Er CF is the condenser fan and Er rF is the refrigerator (fresh-food) fan -- both can make the box run nonstop by killing airflow, but neither is the inverter. A true compressor/sealed-system runs-constantly call (TCA38151706 or an Er CL leak) shows BOTH compartments slowly warming with the compressor running and the condenser hot, whereas a fan/airflow fault shows frost behind a panel with one compartment holding. We confirm the condenser fan (EAU63103202) runs, the coil is clean, the gasket seals and the 6500JB1001K sensor reads true before we ever quote a compressor, so we never sell a sealed-system job on a $15 coil-clean problem.

LG running constantly / never shuts off in Toronto — the local specifics

• The recurring LG-in-Toronto pattern for runs-constantly is the bottom-rear condenser path: tight condo cabinet cutouts and pet-hair-laden coils choke the EAU63103202 condenser fan and coil, the compressor never reaches cut-out, and the call comes in as 'it runs all the time and isn't cold' with no code on the display. The next most common is a drifted 6500JB1001K thermistor or a compression-set MDS gasket keeping the compressor calling -- both cheap, no-code fixes we rule in before any sealed-system talk -- with genuine TCA38151706 linear-compressor / Er CL leak jobs the minority once we serial-check coverage.
• We roll to these Toronto runs-constantly calls carrying the EAU63103202 condenser fan motor, the 6500JB1001K temperature sensor, an MDS-series door gasket and the MEE62805106 defrost-heater assembly, plus coil-cleaning gear for the choked-coil no-part fix; the TCA38151706 compressor and CJT30000002 firmware kit we order LG-OEM only after a serial warranty check confirms it's truly the compressor.

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 running constantly / never shuts off guide.