The Rheem-Ruud 47-22861-09 is an OEM manual reset limit switch engineered to provide dependable high-temperature protection in Rheem and Ruud heating systems. Unlike automatic reset limit switches, this manual reset design requires a deliberate technician reset after a trip event — helping ensure that the root cause of an overheating condition is identified and corrected before the system is returned to service.
Key Features
- Manual reset design requires deliberate reset after trip, promoting safer service diagnostics
- OEM Rheem-Ruud replacement part — engineered for precise fit and function
- Protects heating equipment from damage caused by excessive temperatures
- Helps prevent nuisance cycling and undiagnosed overheating conditions
- Direct OEM replacement for compatible Rheem and Ruud furnace and heating applications
Why Manual Reset Limit Switches Matter
Limit switches are a critical safety component in any forced-air furnace or heating system. When airflow is restricted, a heat exchanger overheats, or another fault condition causes temperatures to rise beyond safe operating thresholds, the limit switch opens the circuit to the burner or heating element — shutting down the heat source before damage or hazard can occur. The manual reset feature on the 47-22861-09 adds an extra layer of safety by preventing automatic restart, ensuring a qualified technician must inspect the system before resuming operation.
Application
- Designed for use in compatible Rheem and Ruud furnaces and heating systems
- Intended as a direct OEM replacement part
- Suitable for residential and light commercial HVAC applications
Ordering Information
- Brand: Rheem-Ruud
- Part Number / SKU: 47-22861-09
- Type: Manual Reset Limit Switch








