Disc pads dragging on rotors

Could be a problem or it could be normal... The calipers don't "retract" so the pad is always in contact with the rotor... But it shouldn't cause significant drag on the rotors.. If the rotors are getting hot without applying the brakes then something is wrong...

Get the car up in the air, have someone try turning the wheel while someone else presses the brake pedal, as soon as the pedal is released the wheel should turn pretty easily...

If it doesn't turn easily try cracking the bleeder screw... Initially crack the screw loose then re-snug it... Have someone press the brake pedal and when they release it crack the bleeder, if fluid dribbles that's normal, if it spurts something is causing it to hold pressure... Could be a master cylinder, could be a hose....

Of fluid dribbles but the wheel still binds check the caliper for sticking & the caliper mount for binding...

Let us know what you find..