Williams P322544 Fan Motor

The Williams P322544 Fan Motor is a critical 115V service part engineered for 35,000 BTU Forsaire Counterflow Top Vent Furnaces. This high-efficiency furnace blower motor replacement is the direct performance match for Williams 3508 series heating systems, ensuring the counterflow design maintains specific cubic feet per minute (CFM) targets for proper heat exchange. Operating on a standard 115V AC power supply, the motor is designed to withstand the high-static pressure environment of top-vented systems, preventing premature failure due to thermal cycling. Technical specifications focus on the exact RPM requirements and shaft dimensions needed to seat into the existing blower housing without modification. Replacing a seized or noisy P322544 motor restores the original static pressure capabilities of the 3508 model, essential for driving heated air down to the floor level as intended by the counterflow engineering specifications.

Technical Benefits for Contractors

• OEM Dimensional Accuracy: Direct fit for the Williams 3508 furnace motor housing, eliminating the need for bracket modifications or shaft shimming.
• Thermal Overload Protection: Equipped with internal sensors to prevent winding failure during restricted airflow conditions or excessive heat buildup.
• Optimized Amperage Draw: Precision windings maintain the correct electrical load, protecting the integrated fan switch and control board circuitry.
• Reduced Decibel Ratings: Balanced rotor assembly minimizes vibration and mechanical noise, a standard requirement for residential Forsaire installations.

Common Installation Questions

Is this motor compatible with 50,000 BTU Forsaire models?
No, the Williams P322544 is calibrated specifically for the 35,000 BTU 3508 series. Larger units require different CFM outputs and motor torque specifications.

What are the electrical requirements for this replacement?
This is a 115V fan motor. Verify that your furnace is not a 240V variant (common in some 500 series models) before attempting installation.

Does this motor include the fan blade or blower wheel?
This part number refers to the motor only. It is recommended to inspect the blower wheel for debris or imbalance when swapping the P322544 to ensure longevity.

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.