
Fasco A118 Motor
The Fasco A118 Draft Inducer Motor is an essential OEM replacement for Williamson furnaces, specifically designed to handle high-temperature flue gas venting in 100,000 BTU systems. Operating on 115V with a 1/15 HP rating, this 1-speed centrifugal blower delivers a 3000 RPM nameplate speed to ensure precise static pressure for safety switch engagement. Built with a shaded pole motor and durable sleeve bearings, the A118 provides reliable clockwise rotation (CWSE) for efficient combustion air movement. This 3.3-inch diameter motor is cross-referenced with 7021-6999 and 7021-7042, featuring 11-inch leads with socket terminals for a secure interface with existing wiring harnesses. Technicians should verify the 118 CFM output matches the requirements of the heat exchanger to prevent carbon monoxide hazards or pressure switch trips. Its open enclosure and Class B insulation are engineered to withstand ambient temperatures up to 40°C, making it a rugged solution for restoring seasonal furnace performance.
Key Benefits
- Direct OEM Replacement: Matches 7021-6999 and 7021-7042 specifications for seamless fit in Williamson 100,000 BTU furnaces.
- High-Speed Performance: Maintains 3000 RPM at 1.8 Amperage to provide the necessary 118 CFM for proper venting.
- Industrial Build Quality: Utilizes shaded pole technology and Class B insulation for thermal protection and longevity in harsh environments.
- Standardized Specs: Operates on a standard 115V circuit with a 3.3-inch motor diameter and sleeve bearings.
Common Questions
Does the Fasco A118 come with the intake or exhaust gaskets?
Standard replacement units usually include the blower assembly; however, veteran technicians recommend applying high-temp RTV or a gasket maker to ensure a leak-free seal during installation.
What should I check if the A118 inducer is running but the furnace won't fire?
Verify the 3000 RPM speed is creating enough vacuum to close the pressure switch. Clogged flue pipes or a failing pressure switch are common culprits even with a functional motor.
Is this compatible with other furnace brands?
While primarily a Williamson furnace draft inducer, it may fit other brands using the 70216999 reference. Always match the voltage, RPM, and mounting flange dimensions exactly.
This item is not eligible for free shipping.
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.
Fasco A118 Motor
The Fasco A118 Draft Inducer Motor is an essential OEM replacement for Williamson furnaces, specifically designed to handle high-temperature flue gas venting in 100,000 BTU systems. Operating on 115V with a 1/15 HP rating, this 1-speed centrifugal blower delivers a 3000 RPM nameplate speed to ensure precise static pressure for safety switch engagement. Built with a shaded pole motor and durable sleeve bearings, the A118 provides reliable clockwise rotation (CWSE) for efficient combustion air movement. This 3.3-inch diameter motor is cross-referenced with 7021-6999 and 7021-7042, featuring 11-inch leads with socket terminals for a secure interface with existing wiring harnesses. Technicians should verify the 118 CFM output matches the requirements of the heat exchanger to prevent carbon monoxide hazards or pressure switch trips. Its open enclosure and Class B insulation are engineered to withstand ambient temperatures up to 40°C, making it a rugged solution for restoring seasonal furnace performance.
Key Benefits
- Direct OEM Replacement: Matches 7021-6999 and 7021-7042 specifications for seamless fit in Williamson 100,000 BTU furnaces.
- High-Speed Performance: Maintains 3000 RPM at 1.8 Amperage to provide the necessary 118 CFM for proper venting.
- Industrial Build Quality: Utilizes shaded pole technology and Class B insulation for thermal protection and longevity in harsh environments.
- Standardized Specs: Operates on a standard 115V circuit with a 3.3-inch motor diameter and sleeve bearings.
Common Questions
Does the Fasco A118 come with the intake or exhaust gaskets?
Standard replacement units usually include the blower assembly; however, veteran technicians recommend applying high-temp RTV or a gasket maker to ensure a leak-free seal during installation.
What should I check if the A118 inducer is running but the furnace won't fire?
Verify the 3000 RPM speed is creating enough vacuum to close the pressure switch. Clogged flue pipes or a failing pressure switch are common culprits even with a functional motor.
Is this compatible with other furnace brands?
While primarily a Williamson furnace draft inducer, it may fit other brands using the 70216999 reference. Always match the voltage, RPM, and mounting flange dimensions exactly.
This item is not eligible for free shipping.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Fasco A118 Draft Inducer Motor is an essential OEM replacement for Williamson furnaces, specifically designed to handle high-temperature flue gas venting in 100,000 BTU systems. Operating on 115V with a 1/15 HP rating, this 1-speed centrifugal blower delivers a 3000 RPM nameplate speed to ensure precise static pressure for safety switch engagement. Built with a shaded pole motor and durable sleeve bearings, the A118 provides reliable clockwise rotation (CWSE) for efficient combustion air movement. This 3.3-inch diameter motor is cross-referenced with 7021-6999 and 7021-7042, featuring 11-inch leads with socket terminals for a secure interface with existing wiring harnesses. Technicians should verify the 118 CFM output matches the requirements of the heat exchanger to prevent carbon monoxide hazards or pressure switch trips. Its open enclosure and Class B insulation are engineered to withstand ambient temperatures up to 40°C, making it a rugged solution for restoring seasonal furnace performance.
Key Benefits
- Direct OEM Replacement: Matches 7021-6999 and 7021-7042 specifications for seamless fit in Williamson 100,000 BTU furnaces.
- High-Speed Performance: Maintains 3000 RPM at 1.8 Amperage to provide the necessary 118 CFM for proper venting.
- Industrial Build Quality: Utilizes shaded pole technology and Class B insulation for thermal protection and longevity in harsh environments.
- Standardized Specs: Operates on a standard 115V circuit with a 3.3-inch motor diameter and sleeve bearings.
Common Questions
Does the Fasco A118 come with the intake or exhaust gaskets?
Standard replacement units usually include the blower assembly; however, veteran technicians recommend applying high-temp RTV or a gasket maker to ensure a leak-free seal during installation.
What should I check if the A118 inducer is running but the furnace won't fire?
Verify the 3000 RPM speed is creating enough vacuum to close the pressure switch. Clogged flue pipes or a failing pressure switch are common culprits even with a functional motor.
Is this compatible with other furnace brands?
While primarily a Williamson furnace draft inducer, it may fit other brands using the 70216999 reference. Always match the voltage, RPM, and mounting flange dimensions exactly.
This item is not eligible for free shipping.
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.












