Suburban Mfg 521493 RV Water Heater Ignition Control Module Board

The Suburban Mfg 521493 is a replacement Direct Spark Ignition (DSI) control module board designed for Suburban RV water heaters. This OEM-quality board serves as the electronic brain of the water heater, managing the full ignition and heating cycle to deliver consistent hot water performance in your RV.

Key Features:

• Controls the Direct Spark Ignition (DSI) sequence for reliable, automatic water heater startup
• Monitors water temperature and regulates the heating cycle for efficient operation
• Manages gas valve control and spark generation during the ignition process
• Built-in safety circuitry to prevent overheating and protect the water heater system
• OEM Suburban replacement part — ensures proper fit and function
• Operates on 12V DC power, compatible with standard RV electrical systems

If your Suburban RV water heater is failing to ignite, not staying lit, or experiencing erratic heating behavior, a faulty module board is a common cause. Replacing the control board with this genuine Suburban part restores proper DSI operation and helps avoid costly service calls.