Vacuum Switch 90277 | Equivalent to Atwood 90277 | NBK-20228

NBK-20228 Vacuum Switch 90277 – Equivalent to Atwood 90277

Maintain safe and reliable operation in your RV’s heating or water heater system with the NBK-20228 Vacuum Switch. Designed as a direct replacement for Atwood part #90277, this precision component ensures proper airflow verification before ignition—preventing overheating and maintaining system safety.

Key Features:

• Direct OEM Replacement – Engineered to match Atwood 90277 for seamless installation and dependable compatibility
• Critical Safety Component – Monitors airflow to prevent ignition under unsafe conditions
• Durable Construction – Built to withstand temperature fluctuations and vibration in demanding RV environments
• For RV Furnaces & Water Heaters – Compatible with many Atwood systems and other models using similar vacuum switch designs

Specifications:

• SKU: 20228
• Brand: NBK
• Category: RV Parts / Vacuum Switches
• Replaces: Atwood 90277
• Function: Monitors blower operation and airflow to enable safe ignition
• Warranty: 60-Day Limited Warranty

Why Replace Your Vacuum Switch?
A malfunctioning vacuum switch can cause your RV furnace or water heater to fail ignition, disrupting heating or hot water supply. Installing the NBK-20228 ensures your system only ignites under proper airflow conditions, maintaining safety and performance.

Shipping Information:
This is a special-order part sourced from NBK. Please allow 1–2 additional business days for order processing before shipment.