the metering device (piston or TXV) may need to be matched to your specific outdoor condenser requirements for proper subcooling and superheat levels

specifically the Mx4x-717x

the internal electromagnet in the valve may be faulty

The Resideo 394800-30 is a heavy-duty ignition cable assembly engineered specifically for intermittent pilot systems

Fenwal 35-630501-103 Module 320819-301 the metering device (piston orThe Fenwal 35 630501 103 is a 24VAC Intermittent Pilot (IP) ignition control module designed for precise gas valve control in commercial and residential heating systems. Engineering grade microprocessor circuitry provides reliable sequence timing, featuring a 15 second pre purge to clear the combustion chamber and a 30 second trial for ignition (TFI). This direct spark ignition component utilizes a single rod sensing (local sense) configuration to