Westinghouse 902661A Gas Furnace Igniter Spiral Assembly

Product Description

The WESTINGHOUSE 902661A is a spiral igniter assembly with plug designed for use in CMF Downflow gas furnaces. The igniter is the component responsible for lighting the burner during each heat cycle. When the thermostat calls for heat, the control board energizes the igniter, which heats to ignition temperature and lights the gas. This assembly includes the plug connection, making it a direct drop-in service replacement. Licensed HVAC technicians install this part during routine maintenance or when diagnosing a no-heat condition caused by igniter failure.

This igniter assembly is specifically rated for CMF Downflow gas furnace configurations. Downflow furnaces discharge conditioned air downward through the supply plenum, and they are commonly installed in closets, platforms, or spaces where airflow must be directed toward a subfloor duct system. The spiral igniter design is suited to the thermal and electrical demands of this furnace type. This part is appropriate for residential gas furnace applications serviced by qualified HVAC professionals.

Key Features

• Spiral igniter element designed to reach ignition temperature reliably each heat cycle
• Includes pre-attached plug connector for direct wiring hookup
• OEM-style replacement for CMF Downflow gas furnace configurations
• Eliminates the need to source the plug and igniter separately

Compatibility

Designed as a direct replacement for CMF Downflow gas furnace applications as specified by the manufacturer.

Installation Notes

Installation should be performed by a licensed HVAC technician. Before servicing, shut off electrical power to the furnace at the disconnect switch or breaker and allow the existing igniter to cool completely before handling, as residual heat can cause burns. Avoid touching the igniter element with bare hands, as skin oils can create hot spots that shorten service life. Follow all applicable local codes and the furnace manufacturer guidelines during replacement.

Technical Specifications

• Application: CMF Downflow Gas Furnace
• Assembly Type: Spiral Igniter with Plug

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 902661A