This board integrates control for both the combustion air blower (inducer) and the circulating air blower

to maintain system reliability and compliance during propane operation

this component provides the isolation and thermal stability necessary for long-term operational readiness

Technicians typically identify failure through high-pitched bearing noise

Resideo ZD24X16TZ Damper 318423-701 This board integrates control forThe Resideo ZD24X16TZ is a professional grade rectangular zone damper designed for high performance residential and light commercial forced air systems. Built with an extruded aluminum frame and parallel blades, this 24x16 damper ensures low leakage and maximum structural integrity under typical static pressures. This power closed spring return open model operates as a fail safe component, remaining open during power loss to prevent equipment high