08 ford edge radiator fan only one side will come on. What might be the problem?

08 ford edge radiator fan only one side will come on. What might be the problem? - 1

The first thing to do is test the fan motor by jump starting it. But make sure you know what you're doing.

Troubleshoot Electric Cooling Fan
http://www.aa1car.com/library/electric_cooling_fan.htm

The coolant/engine isn't hot enough to trigger the second fan?

Are you overheating?

Hi so the other one is worn out.

Turn the AC on and both fans should be running. If one doesn't you need to run a ground and B+ wire form the battery to the fan connector to see if the fan works or not.

Grand

Short

Only turns on when it needs to…
if you are not over heating it is ok.