LG French Door Refrigerator Not Cooling? Linear Compressor TCA36811432 – Fix Compressor Failure Fast

An LG French door or side-by-side refrigerator that is not cooling, has a warm fridge and freezer, or runs continuously without reaching temperature is almost always a failed linear compressor. In most LG LFXS, LFXC, and LMXS series refrigerators, the linear compressor is the core refrigeration component — it pressurizes the refrigerant and drives it through the sealed system to remove heat from the cabinet. When it fails — through winding failure, piston seizure, or loss of compression — the refrigerant circuit stops functioning, the fridge and freezer warm to room temperature, and the compressor either runs continuously without cooling or stops running entirely. ⚡ Known failure point in LG linear compressor-equipped French door refrigerators — covered under LG’s extended 7-year compressor warranty on eligible models. Part TCA36811432 is the genuine OEM LG linear compressor that restores full sealed-system refrigeration and correct temperature in both the fridge and freezer compartments — superseding TCA36811409, TCA36811401, TCA36191402, and 11 additional cross-reference numbers.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Refrigerator has power — display works, interior lights on
• ✔ Evaporator fan runs — airflow confirmed in freezer compartment
• ✔ Defrost system confirmed functional — no frost blockage on evaporator coils
• ✔ Compressor confirmed failed — no compression, overheating, or not starting (technician-diagnosed)
• ✔ ONLY problem is fridge and freezer not cooling despite all other systems functioning

Not sure? Send us your model number — we'll confirm before you order.

🔧 Common Symptoms

• Refrigerator and freezer both warm — not cooling to set temperature
• Compressor runs continuously but fridge never reaches temperature
• Compressor clicks on and off rapidly — thermal overload tripping due to failed start
• Compressor completely silent — not starting at all despite power to the unit
• Loud knocking, rattling, or vibration from the compressor area at the back of the fridge
• LG error code displayed — compressor or sealed system fault indicated

✔ If these symptoms match and the compressor is technician-confirmed as failed, this is the correct replacement.

✔ In most cases, replacing this linear compressor and recharging the sealed system restores full cooling immediately.

📦 Part Details

• Part Number: TCA36811432
• Type: Refrigerator Linear Compressor (Inverter Linear Compressor)
• Replaces / Supersedes: TCA36811409, TCA36811401, TCA36811403, TCA36811405, TCA36811406, TCA36811408, TCA36811410, TCA36191402, TCA36191404, TCA36191406, TCA36191407, TCA37971202, TCA37971203, TCA37971205
• Brands: LG
• Weight: 50 lbs — free shipping included

⚙️ Installation

Skill Level: ADVANCED — Licensed HVAC/R technician required. Unplug the refrigerator before beginning any work on the sealed system. The technician must recover all refrigerant from the sealed system before removing the failed compressor, install the new TCA36811432 compressor, braze all refrigerant line connections, evacuate the system to deep vacuum, recharge with the correct refrigerant type and weight per the refrigerator’s data plate, and run a full operational test to confirm correct temperature in both compartments.

✓ Compatible Models

Confirmed compatible with LFXS28596D, LFXS28596S, LFXS28596M, LFXS26596S, LFXS26596D, LFXS26596M, LFXS26566S, LFXS26566M, LFXC22596S, LFXC22596D, LMXS28596S, LMXS28596D plus additional LG French door and side-by-side refrigerator models. Contact us to verify your model number before ordering.

💡 Pro Tip

✓ Model-Specific Repair Pages