Squirrel cage blower fan in inverter bay bearing noise - FIXED
Fixed.
I took the fan off its mount and was able to shoot some Corrosion X at the bearings --- turns great now and no squeal.
For anyone attempting this, be aware the squirrel cage is attached to the motor shaft with a torx set screw. I have some torx fittings but nothing that is narrow enough to fit through the fan blades and engage the screw. Therefore, I needed to use an aerosol rather than directly applied grease. Also, the thermostat that controls the fan appears to be adjustable from the end that is inside the electric box it is mounted to. I didn't fuss with it since it seems to do its job as is.
My 04 295 is one of the year/models that has a consolidated electronics bay with the inverter. There is a little squirrel cage blower that is thermostatically controlled and cools down the bay. This has been mentioned in previous posts. My problem is that I think the fan bearing is going.
I just turned on the inverter and got a high pitched squeal -when I got the bay door opened, the squeal had stopped but the fan was turning very slowly. I turned off the inverter and then started it again after a few minutes. This time the fan started moving but the housing around the bearing is very hot.
I believe this is a 110 volt fan - the list of 110 appliances in the owners manual includes an entry for a 0.5 amp "inverter fan". The fan did not turn off when I disconnected the house battery bank with the manual shut off so it's not connected that way.
So my question is - has anyone worked on this fan? Can I lubricate the bearing or does it have to be replaced. (I haven't called FT yet so I don't have their input.)
Thanks.
Topic: Squirrel cage blower fan in inverter bay bearing noise - FIXED (Read 722 times)
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