Question about Optoma EP739 Multimedia Projector

1 Answer

When I plug in my projector, it makes a loud humming noise for four times and then shuts off.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,236 Answers

The colorwheel is bad and needs to be replaced.

Posted on Nov 16, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What is this problem - Karcher 3.86 electric pressure washer: humming noise, plug gets very hot, then unit shuts down?


Your pressure washer is either not fitted with a run/stop device in which case like mine you have to switch off within a few seconds of closing the trigger. Check your model features?
The humming noise is the motor stalled out against the pump because there is nowhere for the water to go. The shutoff is caused by the safety overload switching off after overheat.
Or, it has a pressure operated run/stop which is not working. Because water and electricity don't mix, I would suggest getting more specific help. You can download Karcher manuals /spares lists online from Karcher specialists but remember electricity is the silent killer.

May 20, 2014 | Karcher Garden

1 Answer

Kitchenaid blender motor loud hum not working


Can you check it without the beaker on? It could be the blade seizing up, how free does it turn by hand?

Dec 02, 2012 | KitchenAid KSB560 5 Speed Blender

1 Answer

My fridge is making a very loud noise coming from the rear and bottom of box.we have already shut it off for four hours it stopped making noise for a couple of weeks,but now started again,we shut it down...


THERE IS A FAN IN THE BACK OF THE FRIDGE , INSULATION GETS LOSE AND HITS THE FAN. REMOVE THE LOSE ISOLATION OR WHATEVER IS HITTING THE FAN.. I THINK THIS IS THE PROBLEM..JAY THE POOL PUMP MOTOR REPAIR GUY IN LONGWOOD FLORIDA

Jun 27, 2011 | LG Refrigerators

1 Answer

Motor making loud humming noises and kicks out. Could this be a capacitor on the motor going bad ? This doesn"t happen all the time, but frequency is increasing.


this is the motor overheating and, the overload shutting down the motor: check to see if the motor belt is binding

Jan 23, 2010 | Washing Machines

2 Answers

Loud humming after turning on.


I have sort of the same problem...there was a loud snap(kind of electical spark like) then the unit started humming loudly which changes sound as you move the unit around. The picture remains clear and the fan is quiet in shut down mode...still the wheel you think?

Sep 07, 2009 | Optoma MovieTime DV10 Multimedia Projector

1 Answer

Dryer making loud noise


the humming noise is most likely your motor. does it overheat or shut down on you? do you smell anykind of burning? Joe

Nov 14, 2008 | Maytag Neptune MDE5500AY Electric Dryer

1 Answer

Sanyo projector began making a humming noise when running


Its probably the fan inside is loose, try cleaning the fan. or press the machine by your hand to where the sound is coming from, then you will know if there is a loose screw

Oct 28, 2008 | Sanyo PLV 60HT Multimedia Projector

1 Answer

Fan making noise


Are you sure its a fan, dust out the fans.
If its not the fans you may have a power supply going out and causing some induction hum in the unit. Sometimes, but rarely, through the built in speaker.

May 02, 2008 | Optoma MovieTime DV10 Multimedia Projector

2 Answers

Horrible noise


it is the color wheel i have a similar problem and am looking for the part, the color wheel is a small electric motor that spins at a high speed and it can go bad. which will lead to the horrible squeel/hum/buzz.

Apr 24, 2007 | InFocus ScreenPlay 4805 Multimedia...

Not finding what you are looking for?
Optoma EP739 Multimedia Projector Logo

Related Topics:

343 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optoma Office Equipment & Supplies Experts

color wheel light...
color wheel light...

Level 2 Expert

138 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

The Knight
The Knight

Level 3 Expert

74118 Answers

Are you an Optoma Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...