Modine 5H0749330003 Relay 318423-701 We always recommend using the

We always recommend using the dedicated Reznor 155651 Plate Gasket

While it can often replace electronic ignitors in the same physical footprint

Veteran technicians recommend against reuse

allowing for accurate superheat regulation and optimal evaporator coil performance

which can lead to localized overheating and equipment failure

Modine 5H0749330003 Relay 318423-701 We always recommend using theThe Modine 5H0749330003 Relay is a heavy duty, OEM spec electromagnetic switch engineered for 120V heating systems. This industrial unit heater relay serves as the primary interface between low power control signals and high power blower or burner circuits, ensuring seamless ignition and fan sequencing. As a genuine Modine replacement part, it is listed under cross reference R4222D1039, maintaining the precise electrical tolerances required for Modine