2003 Hyundai Elantra Driver side front brakes are very hot

Recently I happen to notice that my car's Driver side Front brakes tends to heat up and the brake pedals are hard to press.

It seems that the driver side front disc brake is engaged and is holding on the brakes while the vehicle is in motion and that makes the brake pads hot (sometimes I see it turning "red"). Please note that the passenger side brake pads are normal in this condition.

I do not know why the brakes are not disengaging when I release the brake pedal? And what holds the brake pedal always engaged? And why my brake pedal is very hard to press in this condition?

This issue goes off all by itself - the other time and is very sporadic.

One of my friend suggested it may be the "brake hose" that is causing the issue.

I request you to kindly advise me what may be going on in the brake system that causes this issue.


Thanks in advance