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Squeeking fan on power ventilation my unit is a AW1400A/XAA, when I turn unit on it squeeks. It sounds like its in the squirrel cage or fan.

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Hi there!

This is almost certainly a dry bearing on the fan motor. If there is little or no oil on there, a little rust may form and the next time this is powered up, the rust comes off - but is polished onto the bearing - creating the squeek.

Buy a can of maintenance oil in a pressurised can, and squirt some on the bearings at each end of the motor. It doesn't matter if it drips or runs down anything. If there are 2 separate motors - you need to oil 4 places.

If the unit is very old, it may use a motor with brushes. I'll give more details if the oil doesn't work.

Thanks for using Fixya - and if this works, please rate as such.

Posted on Jul 01, 2008

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