🔥 31501 – Ignition Control Circuit Board for Atwood/Dometic Furnaces

The 31501 is a factory-authorized ignition control board designed for 12V DC RV furnaces with Direct Spark Ignition (DSI). It manages the ignition sequence, blower operation, and flame sensing—ensuring safe and reliable furnace startup and operation.

🔧 Key Specifications:

• Voltage: 12V DC

• Ignition Type: Direct Spark Ignition (DSI)

• Fan Control: Integrated

• Relay: Onboard relay for blower motor

• Compatibility: Atwood HydroFlame 79/80XX, 85XX, and 89XX series

• Dimensions: 6.75" L x 4.5" W x 2.87" H

• Weight: ~0.4 lbs

• OEM Part Number: 31501

• Replaces: 33488, 30575, 33727

💡 Features:

• Controls ignition, blower delay, and flame sensing

• Plug-and-play design for easy installation

• Compatible with most single-stage Atwood/Dometic RV furnaces

• Optional adapter board (35325) may be required for older harnesses

Atwood Furnace Hydro Flame DSI Universal Ignition Control Kit