These codes typically indicate the board is not sensing a pilot flame

this heater is the standard OEM replacement for various Heatcraft-branded evaporators

This assembly features the UGVL universal linkage paired with an electronic fail-safe actuator

Features a standard 1/4" QC (Quick Connect) for seamless integration with existing wiring harnesses

Always check the original board's jumper and switch configurations before removal

Siemens Industrial Controls GNF322A Safety Switch 319847-401 These codes typically indicate theThe Siemens GNF322A is a 60 Amp, 3 pole, 3 wire non fusible safety switch engineered for reliable equipment isolation in professional HVACR and industrial electrical environments. Rated for 240V AC and 250V DC applications, this general duty disconnect features a NEMA 1 enclosure, making it a standard choice for indoor installations such as commercial air handlers, rooftop units, and local motor disconnect requirements. Built with a visible blade,