/* XPART_SALES_FORMAT_V3 */.xp{font-family:Arial,sans-serif;color:#222;line-height:1.55}.xp *{box-sizing:border-box}.xp .hero{background:linear-gradient(135deg,rgba(0,0,0,.86) 55%,rgba(0,0,0,.45)),url('https://cdn.shopify.com/s/files/1/0897/7783/2225/files/4444444444444444.png?v=1777040489') center/cover no-repeat;padding:34px 28px;border-radius:14px;color:#fff;margin-bottom:20px}.xp .label{display:inline-block;background:#d71920;color:#fff;font-weight:800;font-size:13px;padding:7px 12px;border-radius:999px;margin-bottom:12px}.xp .hero h2{color:#fff!important;font-size:30px;line-height:1.15;margin:0 0 12px}.xp .hero p{color:#fff}.xp .specs{display:flex;gap:8px;flex-wrap:wrap}.xp .specs span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);padding:6px 10px;border-radius:999px;font-size:13px}.xp h2{font-size:23px;margin:28px 0 12px}.xp .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(185px,1fr));gap:12px}.xp .card{border:1px solid #e6e6e6;border-radius:10px;padding:14px;background:#fff}.xp .card strong{display:block;color:#d71920;margin-bottom:4px}.xp .box,.xp .note{background:#f7f7f7;padding:14px 16px;border-radius:8px}.xp .box{border-left:4px solid #d71920}.xp .trust{border:1px solid #e5e5e5;padding:18px;border-radius:10px;margin:18px 0}.xp .trust strong{color:#1a7a3c}.xp ul{padding-left:22px} EVAPORATOR FROST OR ICE BUILDUP CAUSED BY A DEFROST-SENSING FAULT LG Refrigerator Defrost Sensor Assembly (LG OEM catalog designation: Controller Assembly) 6615JB2005R, Fixes Evaporator frost or ice buildup caused by a defrost-sensing fault Genuine LG refrigerator defrost sensor assembly. It monitors evaporator-coil temperature during defrost operation and includes the defrost sensor, fuse, and wire harness. Part 6615JB2005RReplaces ACM73919201LG Guaranteed to Fit — or your money back.Confirm your full appliance model number before ordering. Is This the Right Part? Part Number6615JB2005R ReplacesACM73919201 ManufacturerLG Appliance TypeRefrigerator Part TypeDefrost Sensor Assembly (LG OEM catalog designation: Controller Assembly) ✅ Cross Reference Information Current Part Number6615JB2005R ReplacesACM73919201 Common Symptoms Ice or frost accumulating on the evaporator or rear interior cover Fresh-food section warming because airflow is restricted by frost Improper or incomplete defrost cycling A refrigerator defrost-related error code, when supported by the appliance model Cooling performance becoming inconsistent Check Before Replacing Unplug the refrigerator before accessing or testing the assembly. Visually inspect the sensor, fuse, harness, connector, and wiring for damage, looseness, or an incorrect connector. Check whether frost or ice is obstructing the evaporator and airflow; do not treat frost buildup alone as proof that this assembly has failed. With the assembly disconnected and using the applicable service documentation, measure sensor resistance at a specified temperature and compare it with the model’s service-manual values. If testing the fuse or sensor, avoid applying power to the disconnected component and do not cut or splice the harness during diagnosis. Pro Tip Because the assembly includes both the defrost sensor and fuse, verify the connector and harness routing against the original before installation; an apparently similar sensor with the wrong connector may not be a valid replacement. Part Details Part Number6615JB2005R Part TypeDefrost Sensor Assembly (LG OEM catalog designation: Controller Assembly) ManufacturerLG Appliance TypeRefrigerator Primary FunctionMonitors evaporator-coil temperature and helps regulate the refrigerator’s automatic defrost cycle; the assembly includes the sensor, temperature fuse, and wire harness. Installation Notes Unplug the refrigerator and protect any food that may deteriorate while power is off. Wear work gloves when working around the evaporator cover and internal refrigerator components. Access requires removal of the applicable freezer or refrigerator interior components and evaporator-cover area; follow the appliance-specific service instructions. Transfer or position the sensor and harness to match the original routing and connector orientation. Restore all removed panels and components before reconnecting power; do not force a connector or modify the harness unless the appliance-specific instructions explicitly require it. Verified Compatible Models 74039, 79572049112, 79574012410, 79574012411, 79574013410, 79574013411, 79574015410, 79574015411, 79574019410, 79574019411, 79574025410, 79574029410, 79574029411, LFX25991ST, LFX25992ST, LFX31915ST, LFX31915SW, LFX31925SB, LFX31925ST, LFX31925SW, LFX31945ST, LFX31995ST, LFX33975ST, LFXC24726D, LFXC24726S, LFXC24726S/00, LFXC24726S/01, LFXC24726S/02, LFXC24796D, LFXC24796S, LFXS30726B, LFXS30726S, LFXS30726S/00, LFXS30726S/01, LFXS30726S/02, LFXS30726W, LFXS30766D, LFXS30766S, LFXS30796D, LFXS30796S, LFXS32766S, LMX30995ST, LMX31985ST, LSFD2491ST, LSFD2591ST, LSFXC2476D, LSFXC2476S, LSFXC2496D, LSFXC2496S, UPFXC2466S, LFX25991ST/02 Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.
