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Viewsonic Projector Overheating: Causes and Solutions

Viewsonic Projector Overheating: Causes and Solutions

First of all, let’s remember that all appliances and devices are susceptible to overheating. 

Even if you have the latest and greatest device, lay off it if it’s hot to the touch. It might be overheating.

The most innovative projectors are no exception. If you have the latest Viewsonic Projector, you will have to keep an eye on it. 

Every projector’s heat-producing components are likely to overheat when placed in the wrong environment or surface.

While it might seem obvious by now not to place your projector on top of heat-absorbent surfaces and other electronic devices, hastiness can get the better of us. 

If you were in a pinch and accidentally placed your projector somewhere that wasn’t the best fit for it, we will discuss how we can remedy that below.

However, before we discuss its solutions, let’s find out what causes overheating in the first place.

What Causes Overheating in Projectors?

a projector besides a thermo indicating hot temperature

It’s typical for projectors to retain the heat their electrical components release during operations. 

Many critical elements of a projector’s composition emit light, vibrations, and other electrical transmissions. Its process produces a surplus of waste-heat, which may lead to overheating.

The lack of dissipation or proper heat disposal will cause any device to retain heat. Too much heat-retention will inevitably lead to overheating and more significant problems.

Overheating as a one-off issue won’t be too much to handle. Still, it necessitates a user’s attention. 

Prolonged and chronic exposure to overheating may lead to your device burning out. 

Environmental factors aren’t the only thing to watch out for, as other factors may lead to your projector overheating.

The Most Common Causes of Overheating

We’ve mentioned it already, but it bears repeating; don’t place your projector on heat-absorbent or dense surfaces, such as flat and solid tables or countertops. 

a solid surface countertop table in a kitchen

Whether surfaces are made of metal, glass, granite, or wood, flat solid surfaces have no exit and entry points to accommodate proper airflow which leads to insufficient ventilation for heat energy. 

Projectors need an appropriate amount of air circulation, and a dense surface is the most direct way to hinder air from its hardware.

Opt for surfaces specifically made for projectors and other heat-expelling devices. A projector stand  is always a good choice. You can also go with a more permanent fixture like a ceiling mount 

You can also check out more portable options that are lightweight and adjustable. A multi-functional mini-tripod stand  is ideal for those who conduct presentations in multiple venues.

Amada Projector Tripod Stand

Click image for more info

Also, remember that exterior temperatures will affect your projector. Exposing it to high temperatures will cause overheating immediately or shortly after that.

If your projector is still overheating despite being placed on an appropriate surface within a regulated environment, its heat-retention might be due to underlying issues. 

Underlying Causes of Overheating

Excessive Use

a working projector in a meeting room

Machines are like human bodies, and they may also overheat due to exhaustion. 

If you have ever played, ran, climbed, or even laughed too much for too long, you can physically feel more heat coming off your body. If you don’t catch your breath fast enough, your body can’t lower its internal temperatures, leading to dizzy or fainting spells. 

It’s all the same for your projector. 

If it’s being used often enough, it might not regulate internal temperatures and malfunction. 

A malfunction can come in the form of unresponsiveness or cycling off. 

Hardware Requires Cleaning

Like most of the problems above, the root cause is still air circulation. 

While dust doesn’t seem threatening, heavily congested hardware can obstruct proper ventilation. Without fair air distribution and heat dissipation, your projector’s internal temperature will continue to rise.

Without resolving this issue, your projector will not perform with maximum efficiency.

Wiring: Factory Defect or Improper Electrical Socketing 

It is unlikely your projector will turn on, but if it does, it will quickly overheat. 

You must address any wiring issues immediately. It can lead to combustion, resulting in permanent damage to your projector and its surroundings. 

a broken cable plugged in the socket

The incompatibilities of voltages will result in your projector’s self-destruction. If you don’t know your projector’s exact voltage, sticking it into the wrong socket will cause your projector to overheat rather quickly.

Even the most energy-efficient and versatile Viewsonic projectors are prone to overheating due to improper pairing of voltages and factory defects in wiring.

Are Viewsonic Projectors More Prone to Overheating Than Other Brands?

There isn’t a systematic way to measure this outcome besides an organic encounter with one. However, we can discuss why other projectors might be more prone than others. 

For one, a projector’s build is one of the most significant factors. 

The materials, voltage, air sources, and ventilation capacity play a major role in heat management. 

All projectors emit light, and some come with an accompaniment of sound. Light particles and soundwaves call for electrical transmission, which produces heat through the energy it uses to do so.

The energy input produces heat in generating output. Materials with sub-optimal thermal management might lead to excessive heat retention. 

Viewsonic claims to manufacture projectors with heat-efficient materials. It’s a claim all brands make, so let’s put it to the test.

What Materials Are Used to Manufacture Viewsonic Projectors?

Like most projectors these days, Viewsonic produces LED and laser light sources with a lamp-free alternative. 

A Viewsonic projector utilizes laser phosphor as a light source, reducing heat emission. A projector that produces less heat is arguably better than one made with heat-adept materials. 

ViewSonic LS700HD 1080p Laser Projector

Click image for more info

The adage goes, “An ounce of prevention is better than a pound of cure.”

Projectors that produce less heat make better choices than ones that can handle more heat before overheating.

That’s one point for Viewsonic projectors’ thermal efficiency. 

Its body is made with steel, plastic, and more prevalently lightweight aluminum alloy. 

Aluminum is great at conducting heat. However, it is mutable. Manufacturers can manipulate it into an alloy that is more heat-resistant than other materials.

It is robust enough to utilize in thinner compositions. The thinner its components, the less mass is available for absorbing heat. 

However, while there are fewer materials on the projector heat can stick to, the heat will inevitably cause overheating more quickly without proper ventilation. 

Air vents must be accessible for heat to dissipate correctly. 

Viewsonic projectors possess multiple avenues for liberal airflow, with strategic placements of their air vents.

ViewSonic PG703W 4000 Lumens WXGA HDMI Networkable Projector

Click image for more info

While some manufacturers only prioritize resolution, Viewsonic ranks heat management as high as the quality of its audiovisual output in its list of priorities. 

Viewsonic Projectors Against Other Brands

Viewsonic may not be as well known as Epson and Panasonic, but it does hold its own against industry giants.

Its home projector, the Viewsonic 3800 Lumens PA503S , boasts up to fifteen feet of display in 3800 lumens. Its more eco-friendly power options like its lamp maintains its quality and brightness for over 15,000 hours. Its efficiency in heat management is most evident in its ability to sustain high-quality imagery for thousands of hours. Where improper heat-dissipation dampens the brightness of most projectors, this home and office projector is a more affordable and reliable alternative for teachers, speakers, and other presenters. 

ViewSonic 3800 Lumens SVGA High Brightness Projector

Click image for more info

Comparing Viewsonic’s catalog to other brands makes its price point, heat efficiency, and versatility more viable.

Compared to the typical portable projector, the Viewsonic M1+  makes more innovative strides in both design and function. 

Its sleeker configuration with less material mass and better ventilation allows it to be more ergonomic. Its built-in functions are more user-friendly and efficient. 

Unlike some portable projectors, the M1+ provides satisfactory audio and offers smart streaming support functions for Netflix and other platforms. Additionally, unlike most small projectors, its ventilation systems facilitate airflow more efficiently.

However, Viewsonic projectors may be susceptible to overheating with more functions to accommodate. Still, it won’t always warrant a visit to a repair shop.

What Can You Do About Your Viewsonic Projector Overheating?

For factory-related issues, you should send it back on warranty; don’t buy products from sellers who can’t issue you with one with your purchase.


If its surrounding environment causes overheating, let it cool down and don’t turn it back on in the same place. 

Devices won’t fare well in incredibly high-temperature environments. Ensure you deploy your projector somewhere cooler than the sunny outdoors and warmer enclosed spaces.

As it is overheating, don’t restart it. 

  1. Turn it off
  2. Unplug your device.
  3. Let it cool down.
  4. Move to an area with lower indoor temperatures.
  5. Turn it back on when it is no longer hot to the touch.

Unplugging projector


If it’s overheating due to excessive use, give it time to rest. 

Projectors typically cool down on their own within ten minutes. Still, we suggest you keep it off for at least half an hour (thirty minutes) before starting it back up again. 

Please proceed with the same solution as those for environmental causes, but you won’t have to move it to another place this time. Simply turn it off, and let it rest before powering it back up.

turn off projector by clicking power button


Depending on how you handle your projector, various components may be more contaminated than others. 

Remember, its air vents are the most critical components in preventing overheating. Ensure there aren’t any dust, moisture, or other particles built-up obstructing its airways. 

cleaning the projector filter by the air blower

Keep up with your unit’s maintenance by regularly cleaning it with the right tools. 

  1. Use the appropriate cleaning kit .
  2. Regularly brush or wipe off any dust or moisture.
  3. Don’t handle your projector with wet or dirty hands.
  4. Keep it off moist or dusty surfaces.

Final Words 

Overheating is a common problem among projectors and other devices. 

With common problems come equally common solutions. You don’t need to partake in the mental Olympics to solve overheating issues. 

The next time your Viewsonic projector overheats, don’t panic. 

It’s not the end of the world or your viewing parties. It just needs some adjustments.

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