The fan blade on my Central Pneumatic Model 94667, broke loose around the shaft. It started making noise so I removed cover to find that problem. I can not find where to obtain a replacement blade either OEM or genaric item. Harbor Freight says not parts available for this model. Any help please

That unit was sold by Harbor Freight and is no longer made. Why do you believe you need both the motor and the compressor?

There are two causes
1. The blades are out of alignment Check to see if blade nut is loose and look behind the blades at the shaft to make sure the notches ate in the shaft pins, off is clockwise.

2. The cover is not mounted correctly to the fan housing. Make sure its not upside down and the two halves are together properly and rightside up

Hope this helps Mike.

Could be piston rings too. Have you looked here? http://www.centralpneumaticaircompressors.com/buying-central-pneumatic-air-compressor-parts/

This model is quite the stinker and everything, and I mean everything has to come out to make it easy to remove the fan motor.

I have found that on GE's the blade becomes loose and that is what hits. Sometimes the blade is no longer available since Haier now owns them.

Take pictures during disassembly and lay everything out on towels so it can go back together right and take your time! This is a tough one

The roaring noise is probably the fan blades (looks like a hamster wheel) are worn out as it rotates on the spindle/shaft.

It may be a problem with the 4" exhaust ducting, that connects to the exit part of the fan, has come loose. Theres a damper (kinda like a flapper) at the fan/ducting joint may have broken off and may be sitting sideways in the ducting flapping around inside the duct.

At any rate I highly doubt its wiring. Sounds like its time to pull the fan cover off (turn the power off first via the wall switch or the service panel breaker would be even better) and look at the fan blades. Clean off any dust bunnies, lint, etc. and turn the fan back on. Did the noise stop?

If nothing looks out of place and it still makes noise you'll have to get in the attic and remove the ducting from the fan and see if theres a problem at the connection there. Maybe a squirrel put its bedding in the ducting? It happens.

Could be lots of reasons for the noise but wiring it wrong wouldn't cause roaring. The fan wouldn't work, or worst burn up, if wiring was the issue. The problem is the more than likely the fan blade assy is worn out or something is restricting the air flow in the ducting going to the outside of the house.

you need to remove the back of the machine, and remove the vent cover inside the back,, you'll see a fan blade,, that cord probably got turned around the fan,, Just remove it and you should be fine, Unless it broke off some of the blades, which will cause it to vibrate and not flow the air as good

CHECK FOR ICE AROUND THE FAN BLADES AND CHECK TO SEE IF THE FAN BLADES ARE TOUCHING THE SIDES OF THE AIR FLOW DUCT OPENING. WHEN THE BLADES TOUCH THESE OBJECTS THEY CAN MAKE A NOISE LIKE THIS. A MOTOR THAT IS ABOUT TO GO BAD MAY ALSO MAKE THIS NOISE. IF THE BLADES ARE'NT TOUCHING ANYTHING THEN YOU MAY NEED TO REPLACE THE FAN MOTOR. ALSO THE FAN BLADE MAY BE LOOSE ON THE SHAFT THAT IT SITS ON,TRY SLIDING THE BLADE BACK OR FORWARD AND SEE IF IT CONTINUES TO MAKE THE SOUND.

It should use 30 weight mineral oil, or 30 weight motor oil.

Remove the freezer panel to access the fan motor. Look for any obstruction around the fan or blade. Ice, misplaced wire etc.
Check the fan blade. Sometimes they slip down the shaft too far.
If you find none of these issues, replace the fan motor.

That's the blower fan blade loose on the motor shaft making the noise. Once you replace that the noise should clear up. You don't provide the make and model so I can't give you a part number, but you can Google search for "replacement fan" for your specific model. Sears' parts site (www.searspartsdirect.com) is a good place to start. Enter your model number and they have exploded views and parts information for most models. Then you can use the information to shop around. There are many online vendors for appliance parts.

There are also several websites showing the steps for getting into the dryer to replace the part. Replacing the fan blade is not a difficult job to do yourself if you are comfortable with a screwdriver and have a little mechanical aptitude. Otherwise an appliance technician could repair this for probably an hour labor charge plus parts ad trip fee. Certainly less than a new dryer would cost.