One one front wiper working

[Sealsey]

Set off from work all ok, traveled about 20miles, called in at Tesco set off again and only my drivers side wiper is now working.

The other is trying to move and sometimes it gets half way and stops but must of the time you can see it trying to move but like its not got enough power to move, no matter what speed I put it on,

Is it going to be the motor

[Sealsey]

Fixed it, just the bolt needed tightening under the cover of the wiper arm,