520820 RV Furnace Ignition Circuit Board with Fan Control 12V DC Ignition Module Board Compatible with Suburban NT12/16/20/24/25/30/34/42 & SF20/25/30/35/42 Series, Replace 521099 520741 520871

Technical Specifications:12V DCReplacement: 520871 520814 520820 33550L AP4896608Compatible with: SF-20 SF-25 SF-30 SF-35 SF-42SF20F SF25F SF30FSF35F SF42F use 520832 wire kitNT24SP NT3OSP NT34SP NT40 use 520839 wire kitNT12S NT16S NT20S NT12SE NT16SE NT20SE use 520840 wire kitDD17DSI with date codes below 9124 use 520612DD17DSI with date codes above 9124 use 520741

• ✅Wide Compatibility: 520820 RV furnace igniter circuit board compatible with Suburban RV furnace series SA, SF, SFV, SH, NT, and DD-17DSI. Fits models including SF 20/25/30/35/42-F/Q/FQ, SFV 20/25/30/35/42-F, NT 12/16/20-S/SE, NT 16/20-SQ/SEQ, NT 24/30/34-SP, SH-35/42-F, and DD-17DSI. Please verify your furnace model and part number before purchasing.
• ✅Perfect Fit for Suburban RVs: Designed as a premium replacement for Suburban part numbers 521099, 520820, 520871, 520814. Installs seamlessly into your RV or camper furnace, no adapters or modifications required, ensuring reliable, factory-level performance.
• ✅Easy Plug-and-Play Installation: Features standardized connectors for quick setup. Simply remove the old board and attach the new one—no special tools or professional expertise needed. Installation takes only minutes, restoring your furnace to full functionality.
• ✅Integrated 12V DC Ignition & Fan Control: Equipped with advanced 12V DC logic and built-in fan operation control, ensuring the blower operates correctly before and after each heating cycle for maximum safety, efficiency, and comfort.
• ✅Installation & Maintenance Tips: Ensure all connectors are fully seated. If the unit does not function, check for poor contact caused by dirt or incomplete insertion in the card slot. Proper setup guarantees consistent performance and safe operation for your RV, camper, or boat.