The Lennox 45H83 Limit Switch is a critical OEM replacement part engineered for high-temperature thermal protection within residential and commercial HVAC systems

"no heat" calls

we recommend replacing the flame rod if the ceramic insulator is cracked or if the metal probe shows significant pitting

Applying line voltage will result in immediate coil failure and potential damage to the transformer or zone controller

Amana-Goodman 0231K00034A Motor THPU32HP7Y The Lennox 45H83 Limit SwitchThe Amana Goodman 0231K00034A Motor is a high performance OEM replacement part engineered for peak efficiency in residential heating and cooling systems. This 1 HP variable speed ECM motor utilizes advanced brushless DC motor technology to modulate airflow, significantly reducing energy consumption compared to standard PSC motors. Rated for 120 240V, 60Hz, and single phase operation, this motor is a direct replacement for obsolete Goodman part numbers