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Why does a hissing noise emanate from the FlexScan SX3031W and SX2762W?

These monitors have a fan built-in to suppress the internal temperature build up. The noise can be heard depending on the installation location, but it's not an abnormality in function. For example, if the monitor is placed near the wall, please make more room between the monitor and the wall. This may reduce the hissing noise.

笆ｼ Product Categories�哥lexScan FAQ ranking

No.	Question	Category	Date
1	How to Safely Disinfect and Clean ｺﾚﾁﾏﾊﾓﾆｵ Products (COVID-窶ｦ笆ｼ How to Safely Disinfect and Clean ｺﾚﾁﾏﾊﾓﾆｵ Products (COVID-19)	FlexScan	June 24, 2025
2	There is a clicking noise coming from the monitor.	FlexScan	January 7, 2022
3	Is it ok to setup the monitor on painted surface?	FlexScan	January 20, 2015
4	Why ｺﾚﾁﾏﾊﾓﾆｵ software such as ScreenManager Pro or ColorNav窶ｦ笆ｼ Why ｺﾚﾁﾏﾊﾓﾆｵ software such as ScreenManager Pro or ColorNavigator cannot recognize the ｺﾚﾁﾏﾊﾓﾆｵ monitor connected to the USB 3.0 port of the PC?	FlexScan	January 5, 2015
5	Why doesn't the "Auto adjustment button"窶ｦ笆ｼ Why doesn't the "Auto adjustment button" work properly?	FlexScan
6	Does the power ON/OFF operation shorten backlight life?	FlexScan
7	Monitor shows incorrect color and non-smooth tone when 窶ｦ笆ｼ Monitor shows incorrect color and non-smooth tone when connecting Mac via HDMI cable.	FlexScan	February 7, 2023
8	ｺﾚﾁﾏﾊﾓﾆｵ software does not run or run slower under Windows 窶ｦ笆ｼｺﾚﾁﾏﾊﾓﾆｵ software does not run or run slower under Windows 11.	FlexScan	August 29, 2024
9	When connecting Mac (2018 or later) to an monitor with 窶ｦ笆ｼ When connecting Mac (2018 or later) to an monitor with DVI input, screen flicker occurs or no image displayed.	FlexScan	July 31, 2020
10	Does "Usage Time" in the ScreenManager menu c窶ｦ笆ｼ Does "Usage Time" in the ScreenManager menu count the screensaver's running time?	FlexScan
11	How do I properly plug in and unplug the USB Type-C cab窶ｦ笆ｼ How do I properly plug in and unplug the USB Type-C cable?	FlexScan	September 13, 2024
12	Which chemicals are safe for disinfecting and cleaning 窶ｦ笆ｼ Which chemicals are safe for disinfecting and cleaning monitors and accessories?	FlexScan	April 17, 2025
13	Is it necessary to install the monitor information file窶ｦ笆ｼ Is it necessary to install the monitor information file attached to the monitor packages?	FlexScan
14	The monitor connected via DisplayPort does not show any窶ｦ笆ｼ The monitor connected via DisplayPort does not show any image.	FlexScan	August 21, 2015
15	I've been disconnected from the network connected 窶ｦ笆ｼ I've been disconnected from the network connected via the LAN port of the monitor (Windows).	FlexScan	January 15, 2026
16	<Touch Screen (Analog Resistive Technology)> Caut窶ｦ笆ｼ <Touch Screen (Analog Resistive Technology)> Cautions for the Use of the Touch Panel	FlexScan	October 2, 2014
17	Which type of DVI-D cable should I use for square monit窶ｦ笆ｼ Which type of DVI-D cable should I use for square monitors?	FlexScan
18	When I connect a USB cable to ｺﾚﾁﾏﾊﾓﾆｵ monitors, they indic窶ｦ笆ｼ When I connect a USB cable to ｺﾚﾁﾏﾊﾓﾆｵ monitors, they indicate "ｺﾚﾁﾏﾊﾓﾆｵ USB HID Monitor". Is this a problem?	FlexScan
19	Why the signal error is displayed and there are no imag窶ｦ笆ｼ Why the signal error is displayed and there are no image on the screen, when playing Blu-ray video on the player device connected via HDMI?	FlexScan	March 10, 2016
20	<Touch Screen (Projected Capacitive Technology)> 窶ｦ笆ｼ <Touch Screen (Projected Capacitive Technology)> Cautions for the Use of the Touch Panel	FlexScan	October 2, 2014

笆ｼ Product Categories�哥lexScan Latest updates

No.	Question	Category	Date
1	How do I properly plug in and unplug the USB Type-C cab窶ｦ笆ｼ How do I properly plug in and unplug the USB Type-C cable?	FlexScan	September 13, 2024
2	ｺﾚﾁﾏﾊﾓﾆｵ software does not run or run slower under Windows 窶ｦ笆ｼｺﾚﾁﾏﾊﾓﾆｵ software does not run or run slower under Windows 11.	FlexScan	August 29, 2024
3	When monitor is connected to a PC via USB Type-C, the c窶ｦ笆ｼ When monitor is connected to a PC via USB Type-C, the communication speed of USB devices connected to a USB hub and the monitor built-in wired LAN slows down.	FlexScan	February 17, 2023
4	There is a clicking noise coming from the monitor.	FlexScan	January 7, 2022
5	I've been disconnected from the network connected 窶ｦ笆ｼ I've been disconnected from the network connected via the LAN port of the monitor (Windows).	FlexScan	January 15, 2026
6	I've been disconnected from the network connected 窶ｦ笆ｼ I've been disconnected from the network connected via the LAN port of the monitor (macOS).	FlexScan	January 15, 2026
7	"Compatibility Mode" turns on by itself.	FlexScan	April 16, 2021
8	How can I switch input signals with hotkeys using Scree窶ｦ笆ｼ How can I switch input signals with hotkeys using Screen InStyle?	FlexScan	January 23, 2023
9	When connecting Mac (2018 or later) to an monitor with 窶ｦ笆ｼ When connecting Mac (2018 or later) to an monitor with DVI input, screen flicker occurs or no image displayed.	FlexScan	July 31, 2020
10	What device name is a USB LAN adapter equipped in a mon窶ｦ笆ｼ What device name is a USB LAN adapter equipped in a monitor recognized in Windows OS or macOS?	FlexScan	June 29, 2020
11	How to Safely Disinfect and Clean ｺﾚﾁﾏﾊﾓﾆｵ Products (COVID-窶ｦ笆ｼ How to Safely Disinfect and Clean ｺﾚﾁﾏﾊﾓﾆｵ Products (COVID-19)	FlexScan	June 24, 2025
12	Which chemicals are safe for disinfecting and cleaning 窶ｦ笆ｼ Which chemicals are safe for disinfecting and cleaning monitors and accessories?	FlexScan	April 17, 2025
13	How can I change the Advanced Settings of Auto EcoView?	FlexScan	July 10, 2019
14	Why the signal error is displayed and there are no imag窶ｦ笆ｼ Why the signal error is displayed and there are no image on the screen, when playing Blu-ray video on the player device connected via HDMI?	FlexScan	March 10, 2016
15	The monitor connected via DisplayPort does not show any窶ｦ笆ｼ The monitor connected via DisplayPort does not show any image.	FlexScan	August 21, 2015
16	Can I use the monitor in environment with corrosive gas窶ｦ笆ｼ Can I use the monitor in environment with corrosive gas?	FlexScan	June 11, 2015
17	Why the monitor displays wrong color and non-smooth ton窶ｦ笆ｼ Why the monitor displays wrong color and non-smooth tone when connecting Mac via Mini DisplayPort cable?	FlexScan	March 17, 2015
18	Is it possible to display resolution of 1920 x 1080 wit窶ｦ笆ｼ Is it possible to display resolution of 1920 x 1080 without scaling?	FlexScan	February 5, 2015
19	Is it ok to setup the monitor on painted surface?	FlexScan	January 20, 2015
20	Why is the screen distorted on the right edge of the mo窶ｦ笆ｼ Why is the screen distorted on the right edge of the monitor when connected to Mac Pro (Late 2013) via DisplayPort?	FlexScan	May 26, 2015

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