Weil McLain 381-354-588 Inducer Assembly
The Weil McLain 381-354-588 Inducer Fan Assembly Kit is the complete inducer replacement for the Weil-McLain CGi Series 3 gas boiler. The Weil-McLain parts list for the CGi - Series 2 and 3 (Fig. 10) shows it as the "Inducer Fan Assembly Kit - (Includes Gasket and Instructions)" for Series 3, and distributors describe it as an inducer assembly with mounting hardware. The photo shows the black blower housing with its motor, a flexible conduit carrying the motor leads, a cast inlet, a white gasket, four flange nuts and a black mounting plate.
The inducer fan is what pulls the flue gases through the boiler and pushes them out through the vent, so when it fails the whole boiler is down. Typical failure signs are a motor that hums but does not spin, noisy or seized bearings, a blower wheel that is loose or fouled, or a motor that trips on overload after the boiler has run a while. Because the kit is an assembly, you replace the whole unit instead of sourcing pieces and balancing a wheel in the field, which is the faster and more reliable repair.
Do not confuse the Series 3 kit with the Series 2 kit. The parts list shows the 381-356-499 as the Series 2 inducer fan assembly kit, and the 381-354-588 is the Series 3 kit, so confirm the series on the boiler nameplate before you order. The same list shows the 590-317-627 inducer gasket for all series, which you should keep on hand if you are reseating an existing inducer. When you install the new assembly, seat the gasket evenly, tighten the four flange nuts in a cross pattern, route the conduit and leads away from hot surfaces, and verify that the inducer starts and the boiler proves draft before you leave. Clean the vent and the burner area while the inducer is off.
Key Benefits
- Complete Inducer Assembly: Housing, motor and mounting hardware come together, so there is no wheel balancing or motor sourcing.
- Listed for CGi Series 3: Shown on the Weil-McLain CGi - Series 2 and 3 parts list for Series 3.
- Gasket and Instructions Included: The parts list notes the kit includes a gasket and instructions.
- Clear Series Separation: The Series 2 inducer is the 381-356-499, so the two kits are not mixed up if you check the nameplate.
Common Questions
- Which boiler is the 381-354-588 for? The Weil-McLain CGi Series 3, per the Weil-McLain parts list.
- What is included? The inducer fan assembly with its mounting hardware. The parts list notes the kit includes a gasket and instructions.
- How do I know if the inducer has failed? Look for a motor that hums without spinning, noisy or seized bearings, a loose or fouled wheel, or a motor that trips on overload.