E22751509 Genuine Bearing Mount for Mitsubishi Electric Split System Air Conditioners, Fan Bearing Holder

Mitsubishi Electric part E22751509 is a genuine bearing mount for air conditioners. It's the holder that locates a fan bearing in the unit's frame and soaks up vibration, so the fan runs true and quiet. Mitsubishi Electric lists several bearing mounts for different models and positions, so match this number against your unit's parts list before ordering.

Fan noise and wobble from a worn bearing mount

Bearing mounts are commonly made from rubber or a similar flexible material, which cushions the bearing and absorbs vibration from the spinning fan. Heat and age harden and crack that material. Once the mount loses its grip, the bearing can shift, letting the fan run off-centre. You'll hear knocking, buzzing or a rhythmic squeak, and the fan may touch its housing or the coil fins. A new mount, with a fresh bearing if the old one is worn, puts the fan back where it belongs.

Part details

• Genuine Mitsubishi Electric part E22751509
• Bearing mount
• Locates and cushions a fan bearing

Fitting the bearing mount

Turn the air conditioner off and isolate it at the switchboard or isolator. Getting to the mount generally involves removing covers and the drain pan, and possibly lifting out the fan, so a licensed technician is the safest choice. Clean the seat where the mount sits, fit the new mount without stretching it, and check the fan turns smoothly by hand.

Questions about this part

Do I need a new bearing as well as the mount?

Check the bearing while you're in there. If it's worn, dry or noisy, replace it at the same time, since the work to reach both is the same. Mitsubishi Electric lists bearings and mounts under separate numbers, so check your parts list for each.