Fan blade 248 diameter 200 X 28deg 176

A condenser fan blade looks simple, but blade geometry and balance matter. When the 248mm fan blade is cracked, warped, or installed with the wrong pitch, airflow drops and the machine struggles to reject heat. Techs are usually called for loud vibration, a humming fan motor, high head pressure, or “not cooling” complaints that show up as soft ice and extended freeze times. Small cracks near the hub grow fast under heat cycling, so any wobble you see today becomes a broken blade and “no cooling” tomorrow. Inspection is straightforward: check for missing tips, hairline cracks near the hub, and any contact marks on the shroud. If the blade wobbles, the motor bearings won’t last, and airflow will be inconsistent. Also verify the blade is secured and set at the proper depth on the shaft so it’s pulling air across the condenser instead of recirculating. Fan blade 549738100 needs correct pitch and spacing; improper depth reduces airflow and can create recirculation across the condenser. Replacing the fan blade restores proper airflow volume and eliminates imbalance that chews up motors. With correct airflow, head pressure stabilizes, the compressor runs cooler, and the machine stops short cycling on high-pressure conditions. It’s an efficient fix when the motor tests good but performance and noise say otherwise. Use a straightedge to confirm the blade plane is true bent blades create vibration that kills motor bearings and loosens mounts. After replacement, run the fan and check for smooth operation with no vibration. A quick head-pressure check and normal freeze time confirm the condenser side is back to doing its job. After installation, verify the fan current draw is normal and that airflow direction matches the unit’s design.