Video projector that turns on and off by itself, what to do?

Formerly reserved for professional use, the video projector has gradually made its place in our homes. Practical and efficient, they are a good alternative to the television. However, like all electronic devices, projectors will inevitably experience some malfunction during their lifetime. So when your projector turns on and off by itself, don't panic. There are solutions to fix the problem. But you still have to know how to do it. This is what we will see today as we try to provide solutions for solve the problem of a video projector that turns on and off by itself.

what to do when the video projector turns on and off by itself

What to do when your video projector turns on and off by itself?

Several factors can be the cause of a video projector that turns on and off by itself. You will then have to carry out various checks and manipulations to try to determine the cause and, in the best case, manage to fix it on your own.

Note: If your video projector is under warranty, contact the reseller of your projector or the brand's customer service directly. Do not disassemble your device as you risk losing the warranty.

Reset the projector

If your projector turns on and off by itself, the problem may come from a minor software malfunction. In that case, perform a reset of the device.

In the event that you are able to turn the projector back on and it responds to your commands, do a reset via Settings of your device. The procedure depends on the model and brand of your projector. Then refer to its user manual to reset it.

If your projector does not immediately turn on or respond to your commands, do a electrical reset. To do this, unplug your projector cable from its power source, wait 2 minutes, then plug it back in.

If your projector continues to turn off and turn on by itself, the problem is with a larger malfunction. Then continue our troubleshooting guide.

Device maintenance problem

When your video projector turns off and turns on by itself, it can also be a problem of dust or dirt clogging the device, and in particular filters and ventilation openings. Then clean it with a suitable cleaning product (cloth or canister with dry air dust remover). Refer to the cleaning advice in the user's guide for your projector model.

Overheating problem on a video projector

Un projector that turns off by itself, then turns on again after a few minutes may be due to a overheating problem. Indeed, the temperature of a video projector is controlled by a thermal sensor. When it detects an abnormally high temperature which presents a risk for the device, it causes its immediate shutdown. After a few minutes off, the temperature drops again and the projector can then turn on again.

However, whenever it gets too hot, the problem will happen again. Hence the importance of determine the origin of the overheating which may be due to different factors:

  • The projector is in a room that is too hot or too humid. Make sure it is in the shade, away from humidity and in a ventilated place where the temperature is below 40 ° C. Also be sure to dust it regularly.
  • The ventilation hole is obstructed by an object or a wall. Make sure to keep a minimum distance of 50cm between the hole and any object.
  • The fan has failed. In this case, you should not hear the fan noise when the projector is operating. It will then have to be replaced.
  • The temperature sensor is defective. It will then also have to be replaced.

Power supply problem

When your video projector turns off then turns on by itself, a power supply problem may also be the cause. Again, different factors may be responsible:

  • Bad connections. Check that the cables are firmly seated in their ports and that they are not stripped, damaged, bent or burnt.
  • Surge concerns. When the device experiences a voltage peak, the security mode is activated and automatically turns off the device. The surge may be from a faulty internal component or the outlet. In this case, you will need to call an electrician.
  • Multiple socket worries. This may be faulty, cause voltage problems or electrical noise. If you are using a power strip, unplug your projector from the power strip and plug it directly into the wall outlet.

What to do when the projector turns on and off due to a component?

If despite everything your projector keeps turning on and off by itself, a faulty internal component issue is most likely the cause of the problem. In the majority of cases, you will then have to do call a professional to find the origin of the failure and replace the defective part. In some cases, the repair requires a fairly high cost, and it will unfortunately be better to buy a new video projector. If you contact a repair service, always ask for a quote to avoid unpleasant surprises.

So what are the components that could cause a projector failure like yours?

Lamp problem on a projector

video projector turns off and turns on by itself what to do

When the lamp of a video projector reaches the end of its life, it causes bugs. A video projector that turns off and turns on automatically can then be one of its side effects. Indeed, the lamp of a projector is a fragile element which has a limited lifespan. It can range from 2000 hours to over 25000 hours of use depending on the type of projector. And when it becomes defective, the entire projector suffers the consequences. If so, then you will need to replace it. To learn more, read our following article: why and what to do when the lamp of my projector does not light up?

Note that some lamps cannot be replaced or are extremely expensive to purchase. In this case, it will be much more relevant to buy a new video projector.

Component problem

Finally, a video projector that turns off and on automatically may be the fault of a defective internal component lying on the power board or motherboard. The component may be excessively worn, burnt out, or have a voltage problem. In all cases, a defective component must be replaced so that the projector can function properly again. Several components can be involved. But it will most likely be the ballast or capacitor.

To verify that the problem comes from a component, it is necessary to check their condition by measuring their voltage. For this, it is necessary to access the power supply card and therefore disassemble the video projector. We strongly advise against this manipulation if you do not have any expertise in electronics. Be aware of the risk of electric shock and damage to the device. Call on a professional or someone close to you with the required skills (disassembly, measurement, welding, reassembly).

Have your video projector repaired or replaced

If nothing helps and your video projector turns off and always turns on by itself, or that you are not competent for the actions seen above, call a professional. Indeed, it may be that over time your projector is worn out and that only an expertise and a repair will allow it to function properly again.

You can at first contact the brand's customer service to obtain a personalized solution and attempt to obtain the product replacement. You can also contact the reseller your projector and ask for their after-sales service conditions. Finally, you can call on a audiovisual equipment repair service. In all cases, ask for an estimate of the repair costs.

Read also: The 5 most common projector problems

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