Description
The Rheem-Ruud SP20116 is an OEM replacement vacuum switch engineered to maintain safe and efficient operation in Rheem and Ruud heating systems. Vacuum switches are a critical safety component in gas furnaces and air handlers — they verify that the inducer motor is generating adequate negative pressure (draft) before allowing the ignition sequence to proceed, helping to prevent unsafe combustion conditions.
Key Features
- OEM replacement part designed for Rheem and Ruud heating equipment
- Monitors negative pressure (vacuum) produced by the draft inducer motor
- Prevents ignition if proper draft pressure is not established, protecting against unsafe operation
- Direct drop-in replacement for simplified installation
- Built to OEM specifications for reliable, long-term performance
How It Works
The vacuum switch is a pressure-sensing safety device connected to the inducer assembly via a rubber hose. When the inducer motor runs and creates sufficient negative pressure, the switch closes and signals the control board to proceed with the ignition sequence. If the required vacuum level is not reached — due to a blocked flue, failed inducer, or a cracked hose — the switch remains open, locking out the furnace and alerting the homeowner or technician to the issue.
Applications
- Rheem and Ruud gas furnaces
- Compatible with select Rheem/Ruud residential and light commercial heating systems
Why Choose OEM Replacement Parts?
Using genuine OEM replacement components like the SP20116 ensures compatibility with your existing system, maintains manufacturer warranty compliance, and delivers the precise performance specifications your equipment was designed around. Always verify your model number before ordering to confirm fitment.
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