520947 Suburban RV Furnace MOD BOARD (park‑model Suburban furnaces with fan systems)

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The 520947 Suburban RV Furnace Mod Board (Park Model w/ Fan) is the OEM 24‑volt control board used in specific Suburban park‑model style furnaces that include an integrated fan system. It replaces failed or inconsistent boards that manage ignition, blower timing, flame sensing, and safety‑circuit logic. Your product page confirms the SKU, category, and that this is a 24V MOD BOARD designed for Suburban furnace applications.

🔧 What the 520947 Module Board Does

This board controls the furnace’s entire ignition and safety sequence. Its functions include:

• Managing spark ignition and gas‑valve timing

• Monitoring flame‑sense feedback to confirm ignition

• Coordinating blower motor operation with the heating cycle

• Handling safety lockout if ignition fails

• Interfacing with thermostat, limit switch, and sail switch

Failures in this board typically cause symptoms such as no ignition, repeated clicking, blower‑only operation, or furnace lockout.

🧰 Key Features

• OEM Suburban 24‑volt ignition/control module

• Designed for park‑model Suburban furnaces with fan systems

• Restores proper ignition, flame sensing, and blower sequencing

• Plug‑compatible with the correct Suburban wiring harness

• Durable PCB designed for high‑heat furnace compartments

Remote Flame Sense 24 VAC - P-30S, P-40, N-30M