Outdoor unit fan making noise when running sounds

What's the model number of outdoor unit

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hi,
Try to lubricate the running belt. If the lubrication is not proper then the belt will make noise. You have to use silicon lubrican for the same . Watch the following video to know how to lubricat the treadmill.
OK

If this is an old unit is is possible that the compressor is vibrating with the load. check and see if the mounting bushes and the foundation is tight and clamped properly. If not the unit must be removed and plugged well into a good foundation. Also check the mounting bushes of the compressor , If this wont solve there is fault within the compressor , possible low lubrication that make it vibrate which might require a consensus and estimate.-- specially if the cooling is going down.

Could be the fan motor's bearings. Try turning the fan by hand to see if spins freely or is tight. If it's tight you can try oiling it but that may not work for long.

Normally the noise you hear is caused by the drum rollers having flat spots on them or needing lubricant.
If this is what is wrong It will make a kind of thumping noise.
When they need lubricant they will normally make a squealing noise also. You would lube the shaft and bearing area of the roller, using a good machine oil...something like "3 in One" oil.

could be the fan is full off dust or something causing it to be out of balance

It sounds like the fan motor needs lubricating. Do you need help with this?

If the fan is fairly new, remove it and return it to Home Depot. It is almost certainly something that has fallen down into the motor and is rubbing loudly enough to make a squeak as the fan runs faster.

The fan itself has sealed lubrication and you don't have to lubricate it.

sounds like your outdoor fan is not working? possible capacitor possible bad motor

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