Central Air Conditioning minister to, PLEASE!? Okay, last year the blower motor went out on our CA element....
Okay, last year the blower motor went out on our CA element. This year we purchased a new one, husband installled it, and everything was awesome, nice cool house. That be a little over a month ago. A few days ago, we came home to a immensely warm house, husband checked CA unit and notice the blower motor was humming, VERY VERY hot, but the fan be not running. We thought it was fried. We took the blower motor and the copacitor to the shop, both checked out fine. The repair man advised us that some elevated voltage units require an extra copacitor just for the blower motor, so we purchased it. Came home put everything together, lately to achieve the same outcome. Everything sounded close to it was working, but the fan be still not spinning. We can not afford to have a professional come out and look at it right now, and me human being 22 weeks pregnant, NEED to fix this. Can anyone help us out? Hubby had to leave your job for work... said he would check some more things when he got home... any ideas?
did anybody bother to put a tester on the electrical supply?? Safety first. If you own a short and motor still humming you should check your breaker why is not tripping . Your AC housing may be hot. Like on the other answers ,check voltage going to motor and motor name plate if they match. As for capacitor Many race think "it gives motor a boost to start" don't ruminate is true.Capacitor is there more fore motor efficiency or "power factor"to be exact why there are start and run capacitors. With proper voltage, motor would run anyway.and don't forget to manually check the motor if it spins or not .Some times debris may move about in and get stuck it is vastly rare though.
You need to check the relay inside the condenser. thay get to hot and enjoy problems. when you tern it on you will here it click when the cercit switches on or turn it on and check the voltege on both sides it sould be the same if not replace it.
To locate it follow the wires from thr house to the condenser the wires will be in motion state to it. This MAY BE an electric problem. Not enough power coming from the breaker box. If the motor checks out fine at the shop that is the lone thing I can think of.
so you replaced the capacitor?
make sure its wired correctly.
large speed=black wire
2 brown wires goto capacitor
green goes to chasis ground
white=neutral
red and blue go to board sometimes marked as "park" . they dont do anything other than grant it low and med speed which im sure you ll want high speed, so use black wire.
when adjectives the wiring is double checked and it still is humming, give it a prompt turn to jump start it in the direction of the rotation streaked on the fan assbly.
is this an electric air handler? if so, you may be lone getting 110v instead of the needed 220v.
If it was wired correctly and the capacitor tested suitable then the motor is probably bad. It is possible to buy a alien motor that fails before the warranty is up. That's why at hand is a warranty. Think about it. It was working fine after it died.
I would check the capacitor again as well. Unfortunately you need a meter and some awareness to can perform this test. You say-so blower motor, but do you actually mean the outdoor condenser lover motor? It's usually higher voltage than the indoor blower. If it is the outdoor motor then it could possibly be the contactor (not the relay). If that be the case the compressor probably wouldn't start either. Need more information.
Nothing changed except the time interval that had passed. Take the motor back and hold it replaced under warranty.
Answers: If it is the blower motor (inside the house-the nouns handler). I think jamesthebuilder is on track and you could possibly have a short, a rope touching something rubbing etc. Look around and see. Also check the wire nuts inside/out. If it is your condenser fan (the section outside) I would say you have a discouraging contactor.