See my "I have the same problem" response. It sounds like the bearings going bad on both yours and mine, and per Humax weaknees.com is the best source for a replacement fan. I tried local stores, including Frys, but noone sells that size fan (it's somewhere between 60 & 80mm in size). Once the bearings on a fan start going, as far as I know the only thing that really works is replacement...
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<p>A common question on <b>FixYa.com</b> is about different <b>fan noises</b> that happen and the causes. These noises are often fairly easy to fix and some are the result of other problems.<br />
<p>If you are hearing a rattling noise or a squeaking, high pitched squeal coming from the bottom or back or the <b>refrigerator</b> then the <b>condenser fan motor</b> is probably going bad. Sometimes the bearing in the <b>fan motor</b> will even get so bad that the<b> fan blade</b> will start to hit anything that is close to it down there. This can create a very loud noise. This fan normally will be running when ever the compressor is running also.<br />
<p>As with any other problems you will want to get these things fixed promptly. If the problem is just a squeal a bit of light motor oil will do wonderful things for you. Many times though, you will have to order the parts needed to fix the problem. When repairing the problem make sure to remove all power the the unit and to wear gloves is possible, as there are many sharp edges in close quarters that will butcher you hands in no time.<br />
<p>The other fan that can cause noise is the <b>evaporator fan.</b> While this fan too can get worn and become noisy, it also can sometimes start to hit ice that is building up because of a problem with the defrost system of the refrigerator. Checkout my tips about <b>defrost problems</b> if you find a build up of ice and the fan is hitting the ice and making noise. This fan can also be oiled if needed, and it will also wear out and need to be replace occasionally. This fan usually will go off when the door is opened, so sometimes it makes it difficult to figure out exactly what is happening. By holding the door switch in manually, you can get the fan to run and troubleshoot it more easily. Make sure to remove all power before trying to service the fan. Spinning fan blades do not play nice with your hands!<br />
<p>For many refrigerators you will have to remove some covers or even the whole bottom of the freezer to get to this fan for replacement. Checking the exploded views at appliance parts websites can give you an idea of where the fan is located and what must be removed to get to it for replacement.<br />
<p>Both of these fans and the associated parts are available for most refrigerators online. Look for them at the appropriate spots in the exploded views of the units.<br />
<p><span>How to Buy </span><u><a href="http://www.fixya.com/support/r3907570-buy_appliance_parts_online"><span>Appliance Parts Online</span></a></u>
Try using other brush attachments, as broken bearings in a brush attachment will cause noise. If these troubleshooting techniques do not work, you may need to service the engine.
Remove the filter and bag of the machine and make sure that they are not clogged or full of debris. Clean any filters according to the instructions for your model or replace the bag. Excessive debris will make the engine run noisily.
Inspect the hose of the vacuum and remove any large debris that may be clogging the inside of the tube. Large amounts of dust, as well as stones or other hard materials that bounce, may cause a loud noise in the engine.
Remove the housing that conceals the engine of your machine and inspect the fan for damage or clogging. Remove any dirt or debris that may hinder the movement of the fan. Inspect the fan for any damage such as bent or excessively sharp blades. Replace the fan blades as needed; contact your vacuum manufacturer if the fan is damaged. The replacement part will include instructions.
Tighten the fan with a ratchet if it is loose on the assembly. A loose fan will make a rattling sound as the motor revs.
Wipe dirt and dust from the frame of the engine. Large quantities of dirt or dust around the motor can cause it to overheat, which can cause vibration and loud noise.
Look for corrosion around the engine. If the engine is corroded, it must be replaced.
Grease the bearings of the engine if you hear a grinding noise from the vacuum. Greasing is often performed through ports in the engine, or by removing the bearings. However, the actual greasing method is model-specific. Consult your owner's manual or send the vacuum to a service professional for this service.
Inspect the inside of the vacuum cleaner for other worn parts or broken pieces. Worn or broken pieces can cause loud noises to occur. Remove the broken part and order new materials from the vacuum manufacturer or take the machine in for service.
Hope this information was helpful to you.
All the best.
The fan motor and axis is full of burned oil and fat and this can make it run harder and heavy.
Also the Fan blades from heat can be deforms and heats the frame while they rotate.
So the first solution is to remove the complete fan and motor clean the axis and use lubricated oil like UD40 and check the fan blade if they are straight. If the fan and motor look very bad then replace it with a new one.
hi there.not sure on the shroud removal bit,but a good oiling of the fan bearings should fix the noise issue.its a common grumble with computers and suchlike.avoid wd40,it only lasts so long.engine oil is as good as any to use! hope the info is of some use!
Modems don't have fans. I think you mean your fan in the computer makes a loud noise. Some computers have settings where the fan speeds up if you are doing a lot of things--making the computer work harder. Some fans make noise just before they fail. Depends on the type of noise. If it's a sound that has a lot of rattling in it or maybe a high screeching sound, I'm thinking you'll be needing a new fan. Probably a CPU fan is the culprit. Also, fans on video cards often go bad--so you'll have to open the case and listen to where the sound comes from.
usually loud fan noise in computers means that the fan you have got is too fast for you computer or too slow for your computer. go back to the place you got your fan from and ask them to check its compatibility with your computer.
otherwise try cleaning the fan or removing it and making the screws a little bit looser. might jusdt be rubbing
Most of the fan motors can be oiled. You will have the slide the ac forward and remove it from the case to access it. You will find yellow pull pins on each end of the motor, a lite drop or two is all that is needed.