Why its stays on sleep mode

This might be saying you need to wait 24 hours before it runs:

7. Stand-by/power saving mode: • When the cycle ends, the green "SLEEP" indicator on the control panel lights up and the LED display flashes "93". The system is now in Stand-By mode. After a while, it shuts down and sets itself in a Power Saving mode. The system will automatically turn itself back on in 24 hours, starting its daily cycle of chlorine production. • The "SLEEP" indicator stays on, while the system is in the Power Saving mode. The LED display however, goes blank after 5 minutes. Press any button ( or ) to view the last LED code.

From the manual:

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwinsvC4norqAhWNUt8KHSLlA3QQFjAUegQIBxAB&url=https%3A%2F%2Fintexwetset.co.uk%2Fwp-content%2Fuploads%2Fsites%2F2%2F2019%2F04%2F26668-26670-ECO5220-6220-ECO5230-6230-1.pdf&usg=AOvVaw2zbAebQw6eyqj-dBf6lIdF

Hi James.
go to this link and read up in the forum and see if it helps you out.
Why won my phone stay in sleep mode Android Forums at AndroidCentral com
or this link.
Galaxy J7 won stay in sleep mode Google Search

Reset the tablet

Sleep mode is a convenient power-saving feature used on both laptops and desktop computers. This feature powers down hard disks, monitors, wireless devices and any other power-consuming peripherals without turning the unit completely off and necessitating a reboot. Sleep mode can prevent battery drain if using a laptop or mobile device while away from the power supply. This mode is useful when quick access to a computer is needed, but can be irritating if the sleep mode takes a long time to come back from. It is simple to turn sleep mode off, based on the operating system being used.

Go to the "Start" button, then click on "Control Panel." In the control panel screen, click "System and Maintenance," then click on "Power Options." This brings you to the "Select a power plan" page. From the "Select a power plan" page, select the option that says "Change plan settings." This changes the settings on the currently selected plan. Select the "Change advanced power settings" option. Click "Sleep" and then click on "Sleep After" to expand it. If using a laptop or mobile PC, click "On battery" and "Plugged in," then select the "Never" option. This turns off sleep mode for both battery and AC use. If you are using a desktop computer, click "Setting," click the arrow and then click "Never" to turn off sleep mode. Click "OK," then click "Save changes" to save the modification. b> Turning Off Sleep Mode - Mac OS b> Click on the Apple logo at the upper left corner of the screen to open the menu and select the "System Preferences" option. From the "System Preferences" screen, click on "Energy Saver." If you are using a desktop, select "Power Adapter" in the top drop-down menu. In the second drop-down menu, select "Custom." Highlight the "Sleep" tab, then adjust the top slider to the far right, marked "Never." I f you wish the display to stay on, adjust the bottom slider to "Never." Click the red button on the upper left side of the "Energy Saver" screen. If you are using a mobile product or laptop, follow step 2 and select "Battery" from the top drop-down menu. Repeat step 3 to change the settings for battery use. Hope this helps.

depending on the model number set is not making it full on--something is causing the set to shutdown for protection.

can you get it out of sleep mode? if so then change your power settings.... you may also be in a mode that the monitor cant support try going into safemode to see if stays on ... if it does it could be two things..... the res is Too high or there is a program that is making it go to sleep......if you have anymore information or would like more help reply here or e-mail me at [email protected]

power down, everything, leave it off for a few minutes, turn it back on.. when it gets booted, disable sleep mode option in advanced power features.

usually, to get a PC out of sleep mode, you either press the ESC key, press the power button a bit quickly, or press the sleep key agian. It really depends on the system. Try any of those to see if it helps.

-Chad

remove the serial bus cable and reinstalled the software that came with it,itmay be infectted by virus

To remove the sleep mode: right click the desktop and select Personalize, Click screen saver, at the bottom of that window you'll see "Change Power Settings" Click on that. Next to the left side of the window click on "Change when the computer goes to sleep and change the setting to "Never".. As far as why its doing it is unclear without hands on work, but you should have warranty for it. Tell them to fix it or try a differ brand of PC.