4055387510 Genuine Cross-Flow Fan Rotor for Electrolux Group Split System Air Conditioners, Indoor Tangential Fan Barrel

Genuine Electrolux part 4055387510 is a cross-flow rotor, the long barrel-shaped fan that runs across the indoor unit of a split system. It draws room air in through the filter and coil and blows it out past the louvre. Replace it when blades are broken, the rotor is out of balance or the hub has cracked. Measure your old rotor and check its number against 4055387510, as similar rotors come in different lengths.

Noisy or weak airflow from a split system indoor unit

The cross-flow rotor spins for every hour the unit runs, so any damage soon shows up. A cracked hub or broken blade throws the rotor out of balance, causing a wobble, a rhythmic thump or a vibration you can hear through the wall. Dust and mould on the blades cut airflow and can spread odours through the room. If the rotor slips on the motor shaft, the motor may whirr while little air comes out. Cleaning deals with build up, but a cracked rotor needs replacing.

Part details

• Genuine Electrolux part 4055387510
• Cross-flow fan rotor for a split system indoor unit
• Length and model fit not on file, compare with the old rotor

Replacing the fan rotor

Isolate the power at the circuit breaker before you begin. Reaching the rotor usually means removing the front cover, the drain tray and sometimes loosening the coil, so take photos at each step. Loosen the grub screw at the motor end, slide the rotor out and fit the new one, making sure the bearing end is seated. Split systems are hard-wired, so if you aren't confident, use a licensed technician.

Questions about this part

Can I just clean my rotor instead?

If the blades are only dirty, a careful clean may be enough. Replace the rotor if any blade is cracked or missing, the hub is split, or it wobbles when spun by hand, as cleaning will not fix those faults.