Lennox 10Y66 Transformer Integrating this factory-tested switch ensures

Integrating this factory-tested switch ensures signal continuity within the 24V safety string

providing a consistent arc for reliable gas ignition in various cabinet configurations

Standard T-4002-124 mounting brackets are typically already in place on the wall

Common causes include blower motor failure

Lennox 10Y66 Transformer Integrating this factory-tested switch ensuresThe Lennox 10Y66 Transformer Power Choke is a critical OEM HVAC replacement part engineered for high performance voltage stabilization and EMI suppression. As a veteran technician knows, managing electrical noise from compressor and fan motors is essential to protecting the integrated furnace control board. This power choke transformer acts as a passive filter, eliminating high frequency interference and mitigating voltage spikes that can trace back