Product Name
$0.00
✅ In Stock
🚚 Ships Today
🔒 OEM Certified
🔄 30-Day Return
Same-day dispatch if ordered by 3PM CST
Free shipping on orders $75+
Check compatibility before ordering
IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine OEM Lennox 81W04 is an Interlink APA020KAA scroll compressor rated at 19,500 BTUH (approximately 1.5 tons) for 208/230V, single-phase, R-410A systems. This compact compressor is the driving force of your Lennox outdoor unit, compressing and circulating refrigerant to remove heat and deliver reliable comfort in smaller residential and light-commercial applications. Its efficient scroll design runs quietly with fewer wear points than legacy compressors.
Common failure symptoms: When the 81W04 is failing, you may see the unit hum but not start, breakers trip, weak or nonexistent cooling, a compressor that overheats and cycles on its overload, or a bad start/run capacitor masking a deeper electrical fault. Grounded or open windings and mechanical lockup all call for replacement.
Why OEM matters: Single-phase compressors depend on correctly matched start components and capacity. The factory-specified 81W04 ensures the exact displacement, oil charge, and electrical characteristics your Lennox system requires, protecting efficiency and warranty coverage. Non-OEM parts risk poor starting, capacity mismatch, and early failure. Verify the model against the nameplate, confirm capacitor and contactor condition, evacuate and replace the filter drier, then recharge to Lennox specs.