Common Technician Questions What causes a Lennox 10M74 limit switch to trip frequently

eliminating the need for field modifications on 3/8 x 5/8 ODF lines

The balanced forward-curve blower wheel is keyed to ensure perfect alignment on the motor shaft

Technicians should look for a "humming" sound with no blade rotation

the T205 or T207 models from the Erie T200 series should be utilized

Trane MOT17379 Motor 323055-751 Common Technician Questions What causesThe Trane MOT17379 is a heavy duty, 3 phase condenser fan motor engineered for precision airflow and high torque performance in demanding commercial HVAC systems. Operating at 208 230V and delivering a consistent 3 4 HP, this motor features a 1140 RPM (1100 RPM nominal) rating, making it the primary replacement for the obsolete Trane MOT13448. Designed with a NEMA 48 frame and Totally Enclosed Air Over (TEAO) enclosure, this unit is built to withstand