Romote control does not work to turn off the lights or stop the fan. We have installed a new battery in remote control and it still does not work

I bought a 220V remote control for the dust collector in my shop. The DC is 220V and works fine via a switch on the wall that activates a 220V receptable that the DC is plugged into. When I plug the remote control base into the 220V receptacle, plug the DC into the remote control base and turn on...

My fairly new Samsung TV has a problem with the remote. The TV will only react to the signal sent from the remote if the remote is pointed at a VERY small area on the TV. i.e. the lower right corner of the screen. Is there a fix for this?

I changed the batteries (AAA) in the remote control and it still does not work. What can I do to get the remote to work once again ? The set temp and room temp is blank and none of the buttons work on the remote control. Please help me ? Thank you.

Hi, We moved into this place, and found the ceiling fan not working, though was told it's remote controlled. We have no remote control for the fan nor does the fan work when the switching... only the lights would come on (using the light switch)(the fan switch is separate). We've taken the fan...