Sounds as if your blower wheel is damaged or the balance weight has dislodged. Turn power off and inspect blower wheel.
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SOURCE: Lous Noise
It could be the blower fan is loose and needs to be tightened. If so, and you're handy, shouldn't be too difficult. Depends on the specific design.
SOURCE: Loud screeching noise coming from the unit.
A screeching or squealing noise usually comes from the fan motor. There may be an oil port and you can buy a small telescoping oil bottle at a super hardware store or an a/c supply house. Before putting in he oil, remember to TURN OFF THE POWER TO THE UNIT and only use a light squeeze on the bottle - over oiling will cause a mess inside the motor. It may be a sealed motor and no oil ports. In either case, budget for a new motor as if it's to the squealing stage, the bearings are already damaged and it's a just matter of time before before the motor bearings fail. If possible, get oil on the bearings ASAP - and use the proper lightweight oil for made for this application.
Buzzing noise - contactor. maybe a bug got in the contacts or maybe the coil is bad but in any case if you replace the contactor the buzz will go away.
SOURCE: my air conditioner gives out cool air not cold air
Welcome to FixYa
Check the Following
Is your filter clean? Look and the evaporator in the inside unit. Is it frosted up? Do you have condensation water in the pan? Go to the outside unit and feel the air coming out of the fan. Is it warm? Now feel the 2 copper pipes coming out of the unit. Is the small one warm or hot? Is the larger one cool ? Is there moisture on it?
Air conditioner runs but
doesn't cool at all
If the airflow is good and the air coming out is not cold, your
home air conditioning problem may be a temporary problem - your coils
may have frozen. Turn the unit off for an hour to let them thaw, then
try again. If cold air is now present, freezing coils were the problem; if the
problem recurs soon after turning on, you may need to replace the coils. Again,
call a pro. If you have ceiling vents in upstairs rooms and the air flowing
from them is consistently warm, you probably have leaky or poorly insulated
ductwork in your attic. See my Attic ceiling insulation page for more
information on insulating ductwork that runs through attics.
Another likely home air conditioning problem if you have good
airflow but no cooling is that the breaker to the outside unit is shut
off, which, depending on the installation, can either cause the air
conditioning system to not run at all, or to appear to be running but not
provide any cooling. If you can hear the compressor fan running outside, the
breaker is on, but if the outside unit is silent the outside breaker may be
off. If switching it on does not solve the problem, look for the high pressure cut out on the
condenser and try resetting that.
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SOURCE: My central ac unit is blowing air that is cool but not cold
Ek chiz sukha ho to 2kg gila ho to 1kg and jal jaye to 3kg its urgent please
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Good Morning Friend, I understand that your Frigidaire air conditioner was making a loud clanging noise when you turned it on. I will be more than happy to assist. In order to better assist, I will please ask for the model number of your appliance. Looking forward to hearing from you. -WP-
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