Suburban SB521099 is a furnace fan/ignition control board (3G fan control module) designed to control the furnace operating sequence and fan operation in compatible Suburban 12V DC furnaces. It’s a direct replacement for Suburban SB521099 and Suburban 232613 control boards.
Product Specifications
- Part Number (MPN/SKU): SB521099
- Product Type: Furnace Fan Control Board / Ignition Control Circuit Board (3G Fan Control Module)
- Power Source: 12V DC
- Function: Controls furnace ignition sequence and fan operation (fan control)
- Board Size (approx.): 4-1/2″ √ó 2-5/8″
Also Compatible With:
SUBURBAN/SB521099 SUBURBAN/232613
What’s Included:
- 1 √ó Suburban SB521099 Furnace Fan Control Board





