Are you ready to tackle 220V electricity? are you some what knowledgeable about HVAC?
If you are not, I would call somebody. Because there are several reasons why the fan outside does not turn.
Here are couple of reasons.
1. your A/C circuit breaker is tripped.
2. your contactor relay is broken.
3. your A/C is not generating the voltage for Contactor realy.
4. your fan motor is brown.
5. your capacitors are NO good.
And ect…….