Modine 5H0547510045 Main Orifice The most common sign is

The most common sign is the furnace lighting for 2-5 seconds and then immediately shutting down

this component is standardized across the Carrier family of brands

as two-stage valves may require multiple springs for high and low fire settings

Pressure Increase ( Clockwise )

ensuring exact fitment and terminal alignment without field modifications

Modine 5H0547510045 Main Orifice The most common sign isThe Modine 5H0547510045 is a precision engineered LP gas main orifice designed to maintain exact fuel to air ratios in high output heating systems. As a veteran grade liquid propane burner orifice, this component is critical for technicians performing LP gas conversions or replacing fouled Modine burner parts. This specific model serves as the direct replacement for 5H54751 45, ensuring a seamless fit without the need for manifold modifications in the