Rheem-Ruud 47-20545-93 Fan & Limit Switch 100-250F High Limit

The Rheem-Ruud 47-20545-93 is a genuine OEM fan and limit switch designed for use in Rheem and Ruud residential and commercial gas furnaces. This critical safety and control component monitors air temperature to automatically regulate blower fan operation and prevent dangerous overheating conditions.

Key Features:

• High limit temperature range: 100-250°F for reliable overheat protection
• Dual-function design controls both fan cycling and high-limit safety shutoff
• Senses air temperature to automatically turn the blower fan on and off at optimal temperatures
• Prevents furnace overheating by shutting down the burner when excessive temperatures are detected
• Factory OEM replacement part ensures proper fit and performance
• Durable construction with precise temperature sensing element

This fan and limit switch is an essential component for maintaining safe and efficient furnace operation. The switch automatically activates the blower fan when the heat exchanger reaches the appropriate temperature and deactivates it during the cooling cycle. Simultaneously, the high-limit function provides critical safety protection by shutting down the heating system if temperatures exceed safe operating levels, preventing potential damage to the furnace and ensuring safe operation.