After hearing several screeching noises from outside, I discovered that my Carrier AC fan wasn't working but I could hear the motor trying to run. There was extreme heat radiating from the unit and was not frozen. I turned the power off at thte unit in fear of fire. Any thoughts on my problem?Thanks,Corey
Sounds just like a seized bearing on the fan motor. They can be repaired but it's usually less to purchase a new motor. Now all you have to do is figure out how to get the motor out. To get you started, you need to partially disassemble the top portion of the condenser cabinet. This will give you access to the fan motor assembly. Which model do you have? That information will be on the nameplate which is on the side where the electrical enters the cabinet. That reminds me, always pull disconnect and trip breaker before starting.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
you will need to replace the blower motor as it has probably siezed going by the squealing noise you say you heard.i`m assuming this has more than 3 speeds for the fan motor.if it wasn`t working on one speed then you probably have a bad blower motor resistor that will need to be replaced as well so you will have all fan speeds.this is located in the air duct housing near the blower motor and will have about 6 wires on it.some of these on under the hood on the firewall anywhere from the passenger side to the center of the firewall.not sure about the vent switch.if the vent switch is moving the doors and you hear a clicking then you may have a vent door problem that the door pivot is worn.
Outdoor condensing fan motor has stopped running. This
problem could be caused by a bad motor run capacitor. If your motor capacitor is not the problem, then more than
likely you need a new motor. Is the fan blade tight, stiff or hard to turn? If
the fan blade is hard to turn then you probably need a new motor
does the unit outside run at all,can you hear a humming noise or the compressor run or is it just dead.if you hear the comp. run or a humming noise then i would say it needs a new motor.but if you hear absolutely nothing out there,what i would do if you dont have a meter, is open panel on condenser and push the contacts in on the contactor when this is done its like jumpstarting the unit,it should all come on ,compressor and fan motor,if motor comes on then your contactor is bad (cost approx.$50.00) if it doesnot come on then its motor when replacing motor be sure to get a new capacitor with it (cost $80.00 to $120.00 plus cap 5mhz.$5.00 to $15.00) depends on where you get it home depo/menards/etc.high priced try granger or a local a/c distributor youll get it much cheaper.hope this helps
I am assuming that you are talking about a central ac unit. On a central air unit the outside fan must be running whenever the compressor is. If it's not the compressor will shut off from overheating withing minutes. First you need to shut off the unit for several hours and let it cool completely down. Then turn it on briefly to see if the compressor starts and see if the fan tries to start.( I am assuming the compressor starts and runs.) If the fan won't start try testing the capacitors. There are usually two one for the fan one for the compressor. Sometimes there will be one combo one. Mark the wires and remove the capacitor. Get it tested and if bad replace it. This will probably do the job. If not test for current at the fan motor. Also test to see if it turns freely. The motor may need to be replaced. This will run about $50. The capacitor should always be replaced when the motor is changed anyway.
This question is really to broad to answer. There are several things that could cause it to stop running. I think I would turn everything off, let it cool down for several hours and try it again. When you kick it back on, take note of what is running and what's not running. Inside fan, outside fan, compressor. If the outside unit will not run at all it could be as simple as a grasshopper caught in the contacts. If you hear the compressor running outside but no outside fan, The fan motor probably needs replaced. Please make sure that all power to the unit is TURNED OFF before removing cover plates on outside unit and before trying to remove insects from contact points. Check all wiring inside outside unit while it is open. Also check capacitors for swelling or leaking. If you don't know how to turn all the power off or open the outside unit, you need to call a professional AC technician. Hope this helps.