Rheem-Ruud 47-23113-03 Limit Switch

For service calls involving overheating furnaces or blower control issues, the Rheem-Ruud 47-23113-03 Limit Switch is a critical OEM replacement part designed for high-limit safety protection. This 190-degree limit switch is engineered with a fixed open temperature of 190°F and a fixed close temperature of 150°F, maintaining a 40°F differential to prevent rapid cycling. As an SPST normally closed switch, it provides a reliable break in the electrical circuit if the heat exchanger temperatures exceed safe operational parameters. Featuring a yellow color-coded body for rapid field identification, this genuine Rheem furnace limit switch utilizes an auto-reset mechanism, eliminating the need for manual intervention once the plenum cools. This HVAC high limit control is built with a flanged airstream mounting for standard 3/8-inch maximum insertion depth and utilizes 1/4-inch quick-connect terminals for efficient wiring into existing harnesses. Ensure system integrity by replacing faulty 47-23113-03 sensors to restore proper sequence of operation in Rheem, Ruud, and WeatherKing heating units.

• OEM Precision: Genuine replacement ensures proper fitment and thermal response time compared to generic aftermarket alternatives.
• Enhanced Safety: Fixed 190°F threshold prevents heat exchanger damage and ensures safe shut-off during restricted airflow conditions.
• Durable Construction: Rated for up to 230VAC and 25A, providing high-capacity switching for residential and light commercial applications.
• Technician Friendly: Yellow color coding and standard flanged mounting simplify identification and installation during emergency repairs.

What causes a Rheem limit switch to trip frequently?

Frequent tripping is usually a symptom of restricted airflow, such as a clogged air filter, blocked return ducts, or a failing blower motor, rather than a faulty 47-23113-03 switch.

Is the 47-23113-03 interchangeable with other color-coded switches?

No, the yellow color code signifies specific temperature ratings (190F Open / 150F Close). Using a switch with a different color code could lead to premature failure or unsafe operating temperatures.

Does this switch require manual resetting after a high-temperature event?

This is an auto-reset limit switch. It will automatically close the circuit once the internal temperature drops back down to 150°F.

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.