LG Refrigerator Not Cooling? TCA38091801 Compressor – Now Superseded by TCA38151706

If you searched for TCA38091801, this is the correct page — but this part number has been superseded by the current OEM replacement TCA38151706. In most LG French door, side-by-side, and bottom-freezer refrigerators, the compressor is the primary cause of complete cooling failure. When it fails, both the fridge and freezer warm up simultaneously and food spoils within hours. ⚡ Known failure point in LG linear compressor platform refrigerators. TCA38151706 is the current OEM replacement that supersedes TCA38091801 with a direct fit and no modification required.

❓ Is This the Right Part?

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

• ✔ Refrigerator powers on — lights, display, and fans operate
• ✔ Evaporator fan runs but no cold air reaches compartments
• ✔ Refrigerant lines and condenser coils confirmed clear and unobstructed
• ✔ Start relay confirmed OK (shake test — no rattle = relay likely failed too)
• ✔ ONLY problem is compressor not starting, humming briefly then stopping, or no cooling in both compartments

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

🔧 Common Symptoms

• Refrigerator not cooling — both fridge and freezer warming up simultaneously
• Compressor hums for a few seconds then clicks off — thermal overload tripping
• Compressor completely silent — no vibration or sound from the back of the unit
• Evaporator fan running but no cold air circulating
• Er FF, Er rF, or compressor fault codes on the display panel
• Refrigerator runs continuously with no temperature drop

✔ If these symptoms match, the compressor is the most likely failed component in the system.

✔ Order the current replacement TCA38151706 — it supersedes TCA38091801 with a direct fit.

📦 Part Details

• Original Part Number: TCA38091801 (superseded — no longer in production)
• Current OEM Replacement: TCA38151706
• Type: LG Linear Compressor — inverter-driven, variable speed
• Brands: LG, Kenmore (LG-platform)
• ⚠️ Required Software Kit: CJT30000002 (AP6889673) — required with TCA38151706 installation. Do not power on without completing the software update.

⚙️ Installation

Skill Level: ADVANCED — Professional installation required. Compressor replacement involves recovering and recharging refrigerant (EPA 608 / Canadian equivalent certification required). The current replacement TCA38151706 also requires software update kit CJT30000002 — the update must be completed before powering on the refrigerator. Failure to update the software will result in immediate compressor failure.

💡 Pro Tip

🔗 Model Hub Pages

Find part compatibility guides and repair resources for your specific model: LFX25973ST, LFX25973SB, LFX28968ST, LFX28978ST, LFX29927ST, LFX31915ST, LFX31925ST, LFXS24623S, LFXS29626S, LFXS30726S, LMX25984ST, LMX28988ST, LMXS27626S, LMXS30746S, LFC22770ST, LFC24770ST, LFC28768ST, LDCS24223S, LSXS26326S, LSXC22396S.