caliper spring not returning to stop?

[BigPhysco]

hey guys just wondering if you can help me. I have just had new discs, pads and calipers put on the rear as the wheels were warming up too much. previous calipers were sticking. after fitting new calipers the right caliper was holding the wheel on after handbrake was applied. My pal reset the handbrake at the rear of the handbrake handle. this helped a little. the wheel would now move however the wheel is still warming up. infact both rear wheels are warmish. I have had a look again and it seems as though the caliper spring isn't returning all the way back to the stop on the caliper but the left side does. Any ideas on this? I have booked the car in for a brake fluid change and brakes to be bled as they are a bit soft at mo. Going to get the garage to have a look if i cant sort it. cheers.

Lee

[zollaf]

if the lever wont return, remove the handbrake cable from it to rule out a tight cable. if it still doesnt return then replace the caliper.