Upgraded 520820 RV Furnace Ignition Circuit Board for Suburban SF & NT Series (SF-20/25/30/35/42, NT-12/16/20), Replaces 521099 520741 520871, 12V DC Integrated Module

Compatibility InformationReplaces Control Board Part Numbers:521099 520741 520871Compatible with Suburban RV Furnace Models:SF Series: SF-20, SF-25, SF-30, SF-35, SF-42NT Series: NT-12, NT-16, NT-20, NT-24, NT-30, NT-34Other Series: SA, SFV, SHPlease verify your original control board part number and furnace model before ordering, as variations may exist by production year.Technical Specifications:Input Voltage: 12V DCRelay Rating: 45A (240VAC/28VDC)

• 【Compatibility】 Replacement for Suburban RV furnace control boards 520820, 521099.Compatible with Suburban SF and NT series furnaces, including commonly used SF-20/25/30/35/42 and NT-12/16/20 models.Please confirm your original control board part number before ordering
• 【Advanced Ignition Control】It resolves common issues such as the heater's failure to ignite, intermittent shutdowns, abnormal fan operation, or the system's inability to start. It automatically locks in for safety when no flame is detected, surpassing OEM standards. Following factory testing, it perfectly matches the original furnace and can be installed directly
• 【Durable for RV Environments】The PCBA is coated with a high-grade conformal layer to help resist moisture, corrosion, and vibration commonly encountered during RV travel, supporting dependable operation in a wide range of operating conditions
• 【Easy Installation】Designed with a user-friendly layout that aligns with standard OEM wiring harnesses, allowing for straightforward installation without complex modifications. Suitable for DIY replacement with basic tools
• 【3-Year Warranty & Support】Includes a 3-year warranty and responsive customer support. We're here to help address product-related concerns and offer assistance as needed