Using it with LP without a verified conversion kit and the correct orifice size is unsafe and violates manufacturer specs

While the 124362 board is highly versatile

its robust black housing and high-grade silicon steel laminates minimize core losses and electromagnetic interference

this means a drop-in exact fit for CleanEffects and AccuClean whole-house air filtration cabinets

secure seating on terminal pins

Aprilaire 4793 Maintenance Kit 328140-751 Using it with LP withoutThe Aprilaire 4793 Maintenance Kit is a comprehensive solution designed specifically for servicing Aprilaire 550, 550A, and 558 humidifier models. This genuine OEM kit ensures your whole home humidification system operates at peak efficiency by replacing essential internal components that degrade over time due to mineral buildup. Included in the Aprilaire 550 humidifier repair kit is the high performance Aprilaire Water Panel 10, a new scale control