Question about Optoma EP732H EZPRO DIGITAL PROJECTOR Multimedia Projector

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Make a noise when you turn it on like when you have fan out of balance

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The color wheel is broken,
it is running out of balance,
you need a new color wheel usd75
any questions, feel free to ask me
have a nice day!
Jerry Lampdeng Limited

Posted on Mar 04, 2014

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Posted on Jan 02, 2017

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My Hampton Bay Victoria 70 in. French Beige Ceiling Fan has started to sway and make funny noise anything above a level 3


swaying fans are a symptom of out of balance. The blades have to be all at the same height to the ceiling or from the floor . It it was ok before but just started this when the noise started then it may be failing bearing in the fan.
with most fans that means a new one but take it to an appliance shop as it may be repairable.
bearings will be from a bearing supply shop

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Should I lubricate my fan to stop a grinding noise?


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I have a 2002 4x4 Grand Cherokee Laredo 6 cyl. automatic. Engine sounds like the engine is idling high but it is only 700 RPM.at idle. Does this sound like a harmonic balancer?


It may be the radiator fan making all that racket. Usually when the engine is cold, the thermal fan clutch allows more "slip" --- this allows the fan to turn slower than the water pump pulley (less load on the engine). When the fan clutch detects more engine heat, it reduces slippage of the fan clutch and this results in the fan turning "faster". It's actually turning at the same speed as the water pump pulley. The "roaring" noise is the result of the fan pulling in more air through the radiator.

If the noise is present at all times, whether or not the engine is hot or cold, then the fan clutch might be malfunctioning.


I hope this helps.


Have a nice day !!!

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When the vacuum is turned on, it makes a HORRIBLE noise. I thought the belt was bad. Removed it, looks fine. Turned on the unit w/o the belt/roller brush. Same noise. I don't know what else to check. Help...


You have probably broken the motor fan. An out of balance fan creates a great deal of noise and vibration. Fans are inexpensive, but require a good deal of disassembly for replacement.

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My toyo 73 has started making a loud vibrating noise during startup but gets quiet after running a little while...the fan is not on during start up....


The fan blowing air to the room might not be on but the flue fan would be. I reckon this is where the noise might be from. Fan impellors get coated with dust and this throws the balance out (similar to a car wheel if you loose one of the balance weights). Highly recommend getting it serviced by a good technician. Always good practice every year or so and might fix the problem.

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The Air Conditioning makes a loud noise when you turn up the fan speed.


Something could have gotten stuck in there, and throwing the fan out of balance, or the bearing on the fan motor are bad, if that's the case the fan blower motor will have to be replace.

Aug 06, 2010 | 1998 Buick Century

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Fan kicks on but


motor mount loose, fan grate loose, fan off balance, or the motor bearings could be wearing out. put your hand on the top of the motor grate. if by you putting your hand on it the buzzing stops, the hardware may need tightening. if it vibrates violently, the fan is off balance or the motor bearings are worn. if the blades are bent, you may be able to bend them back. if the bearings are shot, you need a new motor.

Aug 07, 2009 | Heating & Cooling

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The fan that is behind the bulb is making a loud noise for a few minutes and then the noise stops. We tried spraying the fan with WD40. ?? We can't seem to find a way to remove/replace this fan. Can't...


sometimes dust accumalates on fins of fans and causes rotation to deform and gets fan off balance causing noise .Also heat from lamp causes deformaties on fan and causes fan bearing to make noise.These fans can be replaced fairly easily

Jul 30, 2009 | Akai PT50DL24 Television

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Help me fixe my ceiling fans


Start over again!
Make sure that the HANGER BRACKET is properly and securely attached to the ceiling joists.
Then make sure that the HANGER BALL of the fixture is properly seated in the HANGER BRACKET.
Make sure the SUPPORT PIN is properly seated in the grooves in the top of the hanger ball.
Make sure that ALL the BLADES are firmly SECURED with TIGHT screws both at the BLADE ARMS AND at the MOTOR.
Remove the BALANCING WEIGHTS from the blades.
Make sure that the DOWN-ROD is indeed VERTICAL and not BINDING.
Turn on the fan in the SLOW mode and let it operate for a few minutes. Is the "shake and noise" issue still present? If NOT, turn it to 'medium speed and if still no problem turn it to high speed.
However, If the problem is STILL present, turn the fan OFF. Look closely and carefully at the LEVEL of the blades. You should be able to determine if one or more of the blades appears to be out of level. Use the minimum amount of balancing weight on the blades, and not every blade may need a weight. You do not want to contribute to the problem here.
If, after you have gone through all of the steps suggested here, the problem persists, then you have done about all you can do as a consumer to make this fan operate satisfactorily.
DOCUMENT the actions you have taken in an effort to remedy the issue on your own.
At this point load it up and return it to the place you purchased it for replacement or refund.
Good luck. :)

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