There is talk of Redknapp being sacked if they're beaten at home by Manchester United.
Fer told the London Evening Standard: "I hope he stays, of course. I don't know anything about him leaving.
"I get on with him really good. I like him. He brought me in, he is honest, a good manager with a lot of experience."
The 25-year-old midfielder experienced a change at the helm in a similar situation at near the end of last term when Norwich replaced Chris Hughton with Neil Adams, but the latter failed to keep them up.
He added: "It's true to say that changing a manager is not always a positive thing.
Last season, Norwich weren't in the bottom three until the final few games.
"For me it (the decision to replace Hughton) unsettled me a lot really. Chris Hughton was the manager that brought me in and we had a good relationship.
"We got a new manager and he had his vision on the team and in the last four games I didn't play. That's always not a good thing."