Rheem-Ruud 47-25350-07 Limit Switch

The Rheem-Ruud 47-25350-07 Limit Switch is a critical safety component designed for precise thermal regulation within HVAC systems. This board-mounted limit switch features a Single Pole Single Throw (SPST) configuration and is normally closed, ensuring reliable circuit continuity during standard operation. With a fixed open temperature of 180 degrees Fahrenheit and a fixed close temperature of 160 degrees Fahrenheit, this auto reset limit switch prevents furnace overheating by breaking the circuit when internal temperatures exceed safe thresholds. The 3-inch insertion length allows for accurate positioning within the airflow, while the green/green color-coding simplifies identification for field technicians. Engineered as a genuine Rheem furnace replacement part, this fixed-temp limit sensor is built to withstand the rigorous cycling of modern heat exchangers, providing an exact mechanical fit for high-limit protection applications without the need for manual intervention after a thermal event.

Key Technical Benefits

• Precise Thermal Control: Calibrated for 180°F cut-out and 160°F cut-in to maintain strict furnace safety parameters.
• OEM Compatibility: Specifically designed for Rheem-Ruud furnace temperature limit requirements to ensure board-mount alignment.
• Automatic Reset: Eliminates manual resets by automatically restoring the circuit once the unit cools to 160°F.
• Durable Construction: Features a high-integrity green color-coded housing for easy visual verification during maintenance.
• Standardized Insertion: The 3" probe depth provides an optimal response time for detecting high-temperature conditions in the plenum.

Common Questions

How do I know if my Rheem limit switch is faulty?
If the furnace blower runs continuously but there is no heat, or if the system cycles off before reaching the thermostat setpoint, the 47-25350-07 limit switch may be stuck open or sensing an over-temperature condition from a restricted heat exchanger.

Is the 47-25350-07 compatible with other furnace brands?
While primarily used in Rheem, Ruud, and WeatherKing equipment, this general purpose limit switch can be used in any application requiring an SPST normally closed circuit with an 180-degree fixed open rating and board-mounting specs.

What does the green color code signify on this HVAC limit control?
The green/green color-coding is an industry-standard identifier for specific thermal ranges, ensuring technicians install the correct limit control sensor for the furnace's design specifications.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.