Description
Ensure reliable ignition and efficient combustion performance in your Reznor gas-fired HVAC system with the Reznor 258251 DSI Controller Replacement Kit. This genuine OEM Direct Spark Ignition (DSI) controller kit is engineered to manage and regulate the ignition sequence in compatible Reznor heaters, providing dependable starts and smooth operation.
Key Features
- Genuine OEM Quality: Designed by Reznor to match original furnace specifications for dependable performance and fit.
- Direct Spark Ignition Control: Manages and regulates the ignition process for safe, efficient starts and stable heater operation.
- Restores System Reliability: Replaces worn or malfunctioning ignition boards to help reduce shutdowns and improve heating consistency.
- Professional HVAC Replacement: Perfect for technicians performing repairs, preventive maintenance, or part upgrades.
- Field-Ready Kit: Includes necessary components for controller replacement (refer to service manual for exact kit contents).






