A reading below 350mV typically indicates a failing thermopile

It is housed in a flame-retardant plastic enclosure and supports easy field wiring via plated screw terminals for 14-22 AWG conductors

While grinding is often a bearing issue in the motor

this valve provides a substantial 3 Cv flow coefficient

if your diagnostics reveal that the inducer motor is running and the pressure switch is closed but no spark is generated at the electrodes

Nordyne 903422 Heat Exchanger 323613-751 A reading below 350mV typicallyThe Nordyne 903422 Heat Exchanger is an essential OEM replacement component engineered for high efficiency thermal transfer in residential and light commercial forced air systems. As a veteran preferred HVAC furnace part, this aluminized steel assembly is designed to withstand the rigorous thermal cycling of modern heating duty cycles, providing superior corrosion resistance. This gas heat exchanger serves as the critical safety barrier between