United are unbeaten in the league this season but have drawn more games than they have won.
They have also been at the centre of one of the most extraordinary footballing sagas of recent years, which ended when Wayne Rooney finally signed a new five-year contract last week.
But Redknapp believes once Rooney recovers from an ankle injury and rediscovers his form, Sir Alex Ferguson's men will be back on track.
"They've had a few problems, haven't they, obviously losing Rooney with his injury and then another few problems they've had with Rooney," Redknapp said.
"When he comes back firing on all cylinders, they'll always be there.
"They've got a fantastic manager; he gets the best out of them every year; they produce great teams and I wouldn't write them off. They'll be right again there pushing all the way for the championship.
"Chelsea are obviously favourites at the moment but I don't think Man United will be too far away again come the end of the season."
Source: PA
Source: PA