Lochinvar & A.O. Smith 100093870 Door Assembly 320788-702 always verify compatibility with your

always verify compatibility with your specific Bard unit's model and serial number

4" WC pressure switch operates on a 24V control circuit with a robust 125/360VA rating

This OEM Carrier replacement transformer provides a secondary step-down from a 208/230V primary input

maintaining the exact physical alignment required for the burner assembly

Common Questions: Does this heater replace the obsolete S1-025-37424-460

Lochinvar & A.O. Smith 100093870 Door Assembly 320788-702 always verify compatibility with yourThe Lochinvar & A. O. Smith 100093870 Door Assembly is a critical replacement manifold door assembly designed for residential gas water heaters featuring the flammable vapor ignition resistant (FVIR) system. This genuine OEM component maintains the combustion chamber seal, ensuring the pilot assembly and burner tube interface correctly with the burner chamber to prevent backdrafting and inefficient combustion. Built for high heat resilience, the