Westinghouse 626495R Furnace Fan Limit Switch

Product Description

The WESTINGHOUSE 626495R is a fan limit switch designed for residential and light commercial gas furnaces. It monitors heat exchanger temperature and controls two functions: it signals the blower to start once the plenum reaches a set temperature, and it shuts the burner off if the system overheats. This unit is rated for a temperature range of 260 to 300 degrees F, making it suitable for high-limit safety control in forced-air heating systems. Licensed HVAC technicians typically install and replace this component during seasonal maintenance or after a no-heat diagnostic that points to limit switch failure.

This fan limit switch is used in forced-air gas furnace applications where integrated blower and high-limit control is required. It is appropriate for residential furnace installations where the operating range of 260 to 300 degrees F aligns with the system design. Service technicians will encounter this part in upflow, downflow, and horizontal furnace configurations where a single-unit fan limit control is specified.

Key Features

• Temperature range of 260 to 300 degrees F for fan and limit control
• Dual-function operation: blower startup control and high-limit burner shutoff
• Designed for forced-air gas furnace installations
• OEM-style replacement for straightforward field swap-out

Compatibility

Designed as an OEM-style replacement fan limit switch for residential and light commercial forced-air gas furnaces requiring a 260 to 300 degrees F operating range.

Installation Notes

Installation and replacement of fan limit switches should be performed by a licensed HVAC technician. Always disconnect power to the furnace at the breaker and set the thermostat to the off position before removing the existing switch. Consult the furnace manufacturer's wiring diagram to ensure correct terminal connections. Work should comply with applicable local codes and the International Fuel Gas Code (IFGC) where required.

Technical Specifications

• Type: Fan Limit Switch
• Temperature Range: 260 to 300 degrees F
• Application: Furnace

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 626495R