The unit outside makes a noise like there is power but the fan does not blow

you need to replace your condensing fan motor. the noise you are hearing is the compressor working against a lot of pressure because the heat is building up in you condensing unit. Prolonged operation without an operating condensing fan motor will cause your compressor to burn up, and then you will have the cost of a compressor changeout to the cost of a condensing fan motor.

sounds like chattering coming from the contactor replace it and your buzzing will go away.

You may have a bad condenser fan motor or a bad capacitor for that motor. If the compressor is running in the outside unit but the fan is not then it is most likely one of those two components that has failed. Consider calling a service tech to test it and see where the problem is.

i beleve your hearing the fan or fan moter

probably from the symptoms you describe the condenser fan motor has failed.If the fan is not running and the copressor is you need to shut the power off to the unit until it is repaired, the compressor can susstain damage from the lack of fan, and it is the most expensive component in the system to replace...

well there not enough data here to make a fairly good solution. but if all the fans are running! and no cool air then it is the compressor.

You must make sure that there is power to both the inside unit and outside unit. Is the room air blower blowing? If not you have either a plugged filter, iced up coil, the access door is not quite closed or there is no power to the unit. Is the outside unit fan turning? If not, you either have no call from the thermostat, the fan is broken or the unit has no power to it. I would turn off the breaker to the inside unit and switch the breaker near the outside unit to off and let them sit idle for 5 minutes. Switch both breakers back on and chect to see if the outside unit turns on. Then check the indoor unit and see if this starts blowing. Let us know what you find.

I would take a very close look at every solder joint there is between the inside unit and the outside. If you observe oil at any point it indicates a leak at that point. That is an expensive price for what you say was done. Check your invoice for the amount of refrigerant they or he added to the system. Compare it with the amount stated on the outside unit nameplate. Check for frost on the suction (big line) by the outside unit. If there is frost your coil is frozen up. If this is the case turn the fan on and the cooling off. Allow it to run in this manor for about an hour to defrost the A coil. Then return to the cooling mode.

If the heating and cooling is working O.K. and maintaining the proper temperatures it is possible that your outside unit is in its off cycle. If the inside unit is running and the outside unit is not with an elevated temperature inside check the power supply to the outside unit. Most units have a disconnect located near them. Check the disconnect and make sure it is set to the on position. Listen for a hum noise at the outside unit which could indicate that the control power is being supplied to the contactor.

This is nothing but an either or -or ! First, make the thermostat calls for cool, there are suppose to be 2- noise outside, the fan motor and the compressor (and if a old system,a humming noise which is the contactor coil which picks up the main 240-volts).. hurry up and take a stick or something and turn the fan blades, if it picks up speed and run, then its the capicator. If not then the fan motor is bad.! (BOTTOM LINE)!