Functional Devices RIBM2401B Relay a pitted or welded contactor

a pitted or welded contactor is often the culprit behind high-voltage circuit failure

check the model and serial number of your Marley Engineered Products heater against the 4520-2048-000 part number found in the manufacturer's repair parts catalog

Does the switch have continuity at room temperature

installing the correct restrictor orifice can stabilize the pressure switch signal and resolve intermittent ignition failures

Functional Devices RIBM2401B Relay a pitted or welded contactorStreamline your next building automation install with the Functional Devices RIBM2401B, a professional grade SPDT 20Amp Enclosed Relay designed for direct 4 inch track mounting. This high performance power relay is a staple for HVACR contractors, offering a multi voltage 24 Vac dc 120 Vac coil that eliminates the need for stocking multiple single voltage units. Built for rugged field use, the RIBM2401B features a pre mounted track design for high