Why won’t my TV turn ON but the red light is ON?
Your TV won’t TV won’t turn ON but the red light is ON primarily due to a failing mainboard, a damaged IR sensor or a faulty power supply board.
Table of Contents
- Failing mainboard
- Damaged IR sensor
- Faulty power supply board
- Bad ON/OFF button on the TV
- Defective remote control
- Dead batteries in the remote control
The issue may also be because of a bad ON/OFF button on the TV, a defective remote control or dead batteries in the remote control as mentioned above.
A failing mainboard or a mainboard that has already failed can cause the red light to remain ON but the TV not to turn ON. If so, get the main board changed. You can confirm the failure by unplugging the television from the wall outlet for about 10 minutes and then pressing the Power button on the TV for a minute. After this, plug the TV back into the outlet and turn it ON. If the turn ON fails, then there is a mainboard failure.
Damaged IR sensor
The infrared or IR sensor is either damaged or defective. Try replacing it with another sensor of the same type to see if it resolves the problem.
Faulty power supply board
The TV not turning ON while the red light is ON may be due to a faulty power supply board. Check the board for leaking or bulging capacitors and other bad parts. Change the bad parts and replace the capacitors with new ones of the same specifications.
Bad ON/OFF button on the TV
The ON/OFF button of the TV is likely to have a problem or got stuck. If it’s stuck, releasing the button should fix the issue while for other problems, you may have to get the button replaced.
Defective remote control
The TV may not turn ON but the red light will remain ON if it is associated with a defective remote control. The best way to check this is by using another remote control to see if the problem persists. If it doesn’t, replacing the original remote control will do the trick.
Dead batteries in the remote control
If the problem occurs when you try to turn ON the TV with its remote control, it’s likely the batteries in the remote are dead. In this case, all that you have to do is insert new batteries in place of the old ones to solve the problem.
What does a solid red light mean on a TV?
A solid red light on a TV means that the television is not in use but it has power. The TV is likely to be in sleep mode.
You can press the Power button on the television or the remote to turn it ON or wake up the unit once again.
If the TV doesn’t wake up when you press the Power button on the remote, you can try using the button on the television or vice versa. There are chances that one of the two Power buttons is not working.
The TV will also have a solid red light if the television isn’t turned OFF at the mains through the wall outlet.
What does a flashing red light mean on a TV?
A flashing red light on a TV often means that the television has detected an issue. The most common reason is an electricity surge to your television with too less or too much electricity flow resulting in shorting of one or more components.
Often, the TV will have to be serviced when it has a flashing red light.
What does the red standby light mean on a TV?
A red standby light on a TV is in the ON state when the television is OFF as long as it’s plugged into the wall outlet and has power. This light is OFF when the TV doesn’t have power or it’s turned ON and has a black screen.
The standby light tends to remain ON if the television has been powered OFF through the remote control. The light is in the OFF state if the TV has been powered OFF using the Power button on the television.
How do I get my TV off standby mode?
You can get your TV off standby mode by disabling the Auto Power OFF mode of your television using its remote control.
The following steps help you to do this.
- Press the button marked Menu on the remote control.
- Scroll up or down until you get to the Timer
- Select the Auto Power OFF mode and set it to Disabled or zero based on the option in your TV model.
How do I get my TV off standby mode without a remote?
You can get your TV off standby mode without a remote by doing a power cycle of the television and turning OFF the energy-saving switch.
- Remove the power cord from the wall outlet of the television and let it be that way for some time.
- Press the Power button on the TV for a period of half a minute to one and a half minutes. This button is usually present on the front panel of the television. Make sure that you don’t use the Power button on the remote to do this.
- Connect the TV to the wall outlet once again and power it ON.
- Check for an energy-saving switch or button behind or on the side of the TV and turn it OFF if it’s in the ON position. You must keep the Power button pressed when you turn OFF this switch.
Why is my Hisense TV standby red light flashing?
Your Hisense TV standby red light may be flashing because it is stuck in standby mode, has a failed or failing power board or features a LED backlight array issue.
The following steps can help to fix the problem of a flashing standby red light in your Hisense 43H5500G television.
- Remove the power cord of the TV from its wall outlet and leave it unplugged for around 15 minutes. Press the Power button on the television for a minute. Connect the power cord once again and turn ON the TV. This process will reset the TV and help it to get out of standby mode.
- Take off the back panel of your television and remove the power board. Look out for signs of bulged, damaged or leaking components. If you notice any of these signs, change the power board. You can seek the assistance of a technician to do this for you.
- Check the LED backlight array if all the LEDs are working properly. If you find one or more LEDs shorted and/or not getting illuminated, changing the array will solve the problem.
Why is my LG TV standby red light flashing?
Your LG TV standby red light may be flashing due to a processor malfunction, pending software update or a power board problem.
The steps outlined below can often fix the standby red light flashing issue in your LG 50LA6210 television.
- Do an electrical reset if you suspect a processor malfunction to be the cause of the issue. Disconnect the TV from all the connected devices and the wall outlet for a couple of minutes. Keep the Power button on the front panel pressed for around 30 seconds. Wait for about 10 minutes and the TV to the wall outlet like before. Turn ON the television. If the problem goes off, reconnect the disconnected devices.
- Check if the software of your smart TV has been updated to the latest version and do the update if needed.
- Look out for damaged or old capacitors on the power board and change either the board or only the affected capacitors. If you’re changing only the capacitors, ensure that the replacement is done with new ones of the same specification and in the same orientation as the old ones.
Why is my Vizio TV standby red light flashing?
Your Vizio TV standby red light may be flashing because of dead batteries in the remote control, incompatible firmware or a problem with the power supply.
The steps mentioned here offer a walkthrough of how to fix the flashing standby red light problem in your Vizio VW40CA television.
- Insert new batteries into the remote control and turn ON the television with it. If the flashing stops, the original batteries were either dead or on the verge of dying.
- If the firmware installed in your TV is an outdated version, there are chances of incompatibility. You will have to just opt for a firmware update to resolve the issue.
- Watch out for a faulty power board or a power board with defective components as such a board can cause problems with the power supply. Replacing the board or its bad components will address the problem. It’s often recommended to change the complete board.
Why is my Samsung TV standby red light flashing?
Your Samsung TV standby red light may be flashing due to a power supply failure, an HDMI port issue, a software glitch or a hardware defect.
The steps highlighted below can help you address the problem of a standby red light flashing in your Samsung T5300 television.
- Try connecting the TV to a different wall outlet and see if the problem gets set right. If it does, the original wall outlet is likely to be faulty. If the problem still exists, you must check the power board for damage due to a power surge or similar instances. A faulty wall outlet and a defective power board are two main reasons for a power supply failure.
- Disconnect all devices connected to the HDMI port of the television and turn OFF the television. Wait for 10 minutes before reconnecting the devices and turning ON the TV. This can stop the red light flashing issue due to an HDMI port issue.
- Update the software of your television by using the remote control to access the TV menu. Outdated software can trigger miscommunication between the software and hardware of the TV, thereby causing the flashing problem.
- Get the TV checked for hardware defects due to accidental drops or liquid splashes. These issues are best addressed by an authorized technician.
Why is my Sony TV standby red light flashing?
Your Sony TV standby red light may be flashing because of a processor problem or an overheating problem.
You can try the steps presented here to stop the red light from flashing on your Sony XR-75Z9J television.
- Do a power reset or a factory reset to correct the processor problem.
To carry out a power reset, unplug the devices connected to the TV and also its power cord from the wall outlet. Let the television remain unconnected for a minimum of five minutes.
Reconnect the power connector to the wall outlet again and turn the television ON using the Power button of the TV or the remote control.
If there is no flashing issue, reconnect the devices else do a factory reset.
To do a factory reset, point the remote control towards the television.
Press the Up Arrow button on the remote and keep it pressed.
Press the Power button on the TV and release it while keeping the Up Arrow button pressed.
- Clean the wall outlet to which your television is connected by using a hairdryer to remove the dust and dirt blocked in them. The dirt and dust tend to trap the heat and prevent air circulation to keep its components cool, thereby triggering a flashing standby red light.
How to turn OFF standby mode on Samsung TV
You can turn OFF the standby mode on a Samsung TV by disabling the sleep timer. This process can be done easily with the help of the remote control.
The following steps guide you on how to turn OFF the standby mode of a Samsung QN85A TV.
- Press the button labeled Menu.
- Select General followed by System Management.
- Select Time and then Sleep timer.
- Disable the timer setting element.
- Go to Power Savings followed by Eco solution.
- Turn OFF the Automatic shutdown
If you prefer not to use the remote control, you can do a simple power cycle using the Power button on the front panel of your television.
How to turn OFF standby mode on LG TV
You can turn OFF the standby mode on an LG TV by performing a power cycle with the Power button of your television. The other alternative is to use the remote control to help you with the turn OFF process.
The steps outlined here provide a walkthrough of how to use the remote control to turn OFF the standby mode on an LG 43UP8000PUR TV.
- Press the button marked Home.
- Scroll to the ALL settings menu option.
- Select General followed by Timer and Stop after 2 hours.
- Disable the timer if it has been set.
- Select General and then Ecological fashion.
- Deactivate the Automatic shutdown
How to turn OFF standby mode on Sony TV
You can turn OFF the standby mode on a Sony TV by carrying out a power cycle without the remote or a few simple steps with the remote control.
The steps mentioned below can help you to turn OFF the standby mode of a Sony KDL32W600D TV with the remote control.
- Press the button labeled Home.
- Select System Settings followed by Eco.
- Select the Idle TV standby option and turn it OFF.
- Select the Presence Sensor option and set it to OFF mode.
The Presence Sensor checks if there are viewers in front of the television. If there are no viewers for a time that has been set earlier, it turns OFF the picture after the stipulated time and only the audio functions. After another half an hour of functioning in this mode, the TV gets set to standby mode automatically.
How to fix a Samsung TV that won’t turn ON but its solid red light is ON?
You can fix a Samsung TV that won’t turn ON but has the solid red light ON by checking the remote control, changing the power outlet or power supply board and checking the external devices connected to the television.
The steps given here can help to fix a Samsung QN43Q6D TV that won’t turn ON but the red light is ON.
- Replace the batteries in the remote and check if the problem still exists. If the problem is resolved, it may have been the old batteries that caused the problem. You must also check to see if any of the buttons are stuck due to dust or other factors and release them.
- Change the wall outlet to which the TV is connected and check if doing so solves the problem. If not, you may have to remove the power board and inspect it as mentioned earlier. Do a replacement if needed.
- Turn OFF the power and disconnect all external devices connected to the television. Wait for a while, connect one device and turn ON the TV. Do this step for each of the devices. If the problem occurs when you connect a specific device, there is a problem with that device. Don’t connect that device and your problem will be fixed.
If none of the above steps works, a power cycle or a forced reset will solve the problem. It’s recommended that you try the power cycle before the factory reset.
How to fix an LG TV that won’t turn ON but its solid red light is ON?
You can fix an LG TV that won’t turn ON but has the solid red light ON by doing a power cycle to reset the television, releasing the Power button on the TV panel and checking for a faulty remote control.
The steps presented below can help to fix an LG 65NANO90UPA TV that won’t turn ON but the red light is ON.
- Do a power cycle and try turning ON the television once again. A power cycle will fix the issue most of the time.
- Check if the Power button on the television panel is stuck and release it gently. Dust accumulation on the button can result in it getting stuck.
- Replace the batteries in the remote control and release all stuck buttons. If these don’t work, you may have to check for a damaged unit and change it or reset the remote control.