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How to fix power, heating, popping and humming issues with Q70A/Q80A/QN85A/QN90A

When using the new Samsung Q70A, Q80A, QN85A or QN90A TV, you may encounter several issues related to its power, heat, popping sounds and/or humming noises.

If you are experiencing any of the above, then you can follow this Seeking Tech guide to find some potential fixes.

How to fix power issues with the Q70A, Q80A, QN85A or QN90A

If your new Samsung QLED or NEO QLED television set is not powering on, you can take the following steps:

1. The first step we recommend taking is to check to see if there is any power left on the Samsung Smart Remote that came with the system.

Press the power button on the remote controller and then check to see if the front tip of the remote is emitting a red light. If it isn’t, you need to recharge or replace its batteries.

2. If the remote seems to be functioning normally, the next step is to check the infrared sensor of your television.

The sensor is located at the bottom of the TV in either the middle or the right side. You may need to use a mirror or other reflective surface to see if there is a red light.

If you don’t see any lights underneath the television, try to unplug it and plug it back in again.

You may also want to try a different power outlet.

3. If you see the red light sensor on both your remote and television set, press the power button on your remote.

4. The red light under your TV should disappear, which should indicate that your TV is now powered on.

You can also use your finger to tap the screen, if you see a blinking reaction, then it means that the TV is receiving power.

5. If you are still seeing a black screen at this point, try pressing the Home button on your remote controller.

If you see the Home Screen menu appear, this will mean any external device you have connected to your Samsung television set may not be connected correctly.

In this case, you should check to see if the cables connecting the TV to the external device aren’t loose from the ports. You should also check for any potential damage on the cable and ports.

You can also go the Source settings from the Home Screen to see if your TV is playing the correct input.

How to fix heating issues with Q70A, Q80A, QN85A and QN90A

If you feel that your television set is getting too hot, then you most likely have nothing to worry about.

The Q70A, Q80A, QN85A or QN90A TVs will generate a lot of heat when turned on for an extended length. The heat will appear at the top as well as the bottom of the screen.

If you are worried about any potential overheating issues, make sure that there isn’t anything covering the top vents or the bottom side. You may also want to leave some room on the backside of the TV to give more air to help the screen dissipate the heat.

How to fix the popping sounds with Q70A, Q80A, QN85A and QN90A

If you occasionally hear your new QLED or Neo QLED television set making a popping sound, then you don’t have anything to worry about.

That particular noise is made due to the expansion and contraction of the outer casing due to the heat being generated inside the TV. This is perfectly normal and your television is completely safe to use.

To reduce the popping noise, make sure that you are giving enough air for at the top side, bottom side and backside on your TV. You may also want to clean the top vents if there is any dust buildup.

How to fix humming noises with Q70A, Q80A, QN85A and QN90A

When using your Q70A, Q80A, QN85A or QN90A, you may hear a humming noise. This is due to the internal circuity using a lot of electricity.

The humming is considered to be normal. With that said, you can still reduce this noise by lowering your TV’s brightness level. To do so, you need to do the following:

1. Press the Home button on your Samsung remote.

2. Select Settings.

3. Select Picture.

4. Select Expert Settings.

5. Select Brightness.

6. Lower the brightness level.

Keep in mind that, by lowering brightness, you will end up with a darker image on your screen.

Thus, you may be better off leaving the brightness level as is. Instead, you can either turn up the volume of your television or use a headphone to drown out the humming noise.