Look for excessive ice buildup on the outdoor coil

While the HUS1207 is a standard Trane OEM part

Common Questions: What is the resistance value of the Daikin-McQuay 330419602

For technicians performing field maintenance or LP gas conversion

Lennox 81W45 Blower R-407A Look for excessive ice buildupUpgrade or repair your Lennox heating system with the Lennox 81W45 combustion air blower assembly. This OEM Lennox replacement part, also identified by model LB 94724AC, is a critical component for maintaining proper draft and air fuel mixtures in high efficiency furnaces. It features a high performance 1 20 HP PSC motor capable of 2800 3200 RPM, operating on a standard 115V single phase circuit. This assembly is a direct replacement for Lennox draft