The MC 521099MC is an aftermarket ignition control board designed for Suburban RV furnaces. This 3G generation board performs all the functions necessary to turn the furnace on and keep it running safely and reliably.
How It Works:
Powered by 12V DC, this control board manages the complete ignition sequence. It sends signals to open the gas valve and emits a high output voltage that creates an ignition spark to light the burner. The board continuously monitors furnace operation to ensure safe, consistent heating performance.
Key Features:
- Direct replacement for multiple Suburban furnace control boards
- 12V DC operation for RV electrical systems
- State-of-the-art, high-quality components
- Compact design compared to previous models
- Works with all Suburban 12V furnaces (excluding NT-45S models)
Replaces Suburban Part Numbers:
230483, 230587, 231328, 231427, 231741, 520741, 520820, 520871
Important Installation Note:
If the board you are replacing does not have fan control, you may need a separate wiring harness for proper installation.
