Outside unit fan want run,but i heard a buzzing noise so i took a stick and turned fan and it started running.But still want cool housr down.

With a non heat pump it is a simple 24 volt AC control circuit. In the attic there is a relay that is actuated via the fan control wire directly from the thermostat. On the thermostat there is an auto/man switch that controls the fan. Manual the fan runs all the time. Auto fan turns on and off with the outside compressor.

If the system is not calling for cool and the fan continues to run the fan relay is sticking. common problem. Sometimes after running for several days the relay will stop sticking if not, replace relay.

If the system is calling for cool and the compressor stops I would still expect the fan to run until thermostat tells the A/C to off. Some compressor units include a safety switch or high-pressure cut-out switch A blocked internal valve bad control board or external fan in outside unit defective no air flow in outside unit.
High pressure cut out not good,

Suggest turning temp max cool and observe. If acceptable cool and the compressor runs without interruption all is good, except for the blower in the attic. Safely check relay in attic blower circuit.

Hope this helps.

The buzz is the compressor failing to start.The blue or purple wire from the compressor goes to herm on the capacitor. If it's wired right and does not stare the compressor is bad.

TRY TO PUSH OUTSIDE FAN WITH A SMALL STICK IF FAN IS TIRNING ALRADT THE CONTACTOR IS GOING OUT.FAN NOT TURNING STARTUP COMPASITOR IS GOING OUT

The fan outside keeps your compressor cool, the compressor, if left running without the fan running to cool it down can get damaged, the fan normally gets its power from a switch box located outside or near
it. or the motor on the fan could have just gone bad. the fan motor is not as expensive as the compressor to replace. its easy to replace. sometimes what goes out 1st on these motors is the capacitor,the capacitor stores enough voltage to give the motor that extra push to turn. many times its just the capacitor that goes out. when you purchase a motor make sure you also get the matching capacitor.if you can turn the fan and it starts running, its the capacitor, if it starts running and has any kind of bearing noise then you will have to replace the motor. good luck!

Sounds as though the contactors are not pulling in tight. shut down the poer to the unit and check the contactor. you will find them behind a panel door on the outside unit.. BE CERTIAN that you have disconnect the power ot the unit . the contactors will have wires running to the compressor. you might not be able to see the pints on the contators. but you can remove the cover and take a look. you can ppush them in and let them move back a forth a bit . put it back toghter and turn it on. If you still hear the noise you will have to repalce the contactors . also the same applies for th outdoor fan as well. Good luck and let me know.. I really hope this helps Jon

It is probably the compressor humming. They can make some funny noises especially on start for a while. If the unit is not cooling it may be the start capacitor or the comressor may be locked up.

Sometimes on new units it is common for the fan to not start until you give it a push. Did you happen to hear if the compressor was operating? If the unit was froze-up the Insulated Suction line would also be iced over as well. If it wasn`t it is more likely that either the compressor was not operating or it shutoff due to
high discharge pressure and can only be reset on its
own or cooling the compressor off with cold water.

Sounds like your condenser fan motor (outside unit) is 'froze up.' Bearings are probably bad. I would suggest having a Service Tech check it out.

Not much you can do yourself - maybe look for an obvious loose wire or something (if you do this be sure power is all off).

It's possible a 'fan capacitor,' (a small grey/silver thingamyjig about the size of an oversized cigerette lighter) is bad - (it will have a wire from the fan motor going to it) but - "not likely."

If it (fan cap) is bad - sometimes they will 'bulge' which is a dead giveaway that it is bad. In which case you could take it down to an AC parts house and get a replacement. If you do this - be sure 'all power is off,' and you mark the wires when your remove the old fan cap - and buy an exact replacement - so you can hook it back up correctly.

Again, the most likely problem is that the fan motor itself is bad - and needs replacing which will run about $200 if a Service Tech does it.

Note: it's possible that you have a 'blown fuse' or a 'tripped disconnect,' on your outside unit - so - I would make sure that your 'fuses/breakers' are all good too.

hope this helps

start components are likely bad causing comp to pull high amps tripping breaker careful resetting the breaker they can explode stand off to the side
you need service all so have preventive maintenance done on the unit

hello sbarrry2 it sound like the motor that is running continously is the condenseer fan and the buzzing and then the click would be the compressor trying to start up and going off on overlaod. shut the unit off at the swiutch, let it cool down (3) hours possibly and then try to turn it back on. this should work. Thanks for using FixYA