Fan motor on the condenser runs a short time and stops.
I have a home central a/c unit; the GE fan motor burnt? what could have cause it to burn out? I clean the condenser coil and replaced the blower motor air filter; I replaced the fan motor w/ another 1/6 hp motor; it will run a short time, about 10 minutes and stop; What is causing my problem?
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When you say the 'condenser' stopped running - I'm 'assuming' you are talking about the outside unit, and I'm also 'assuming' that when you say it stopped running you mean 'nothing' runs on the outside unit - fan motor OR compressor. The fan motor will drown out the compressor running noise which is a 'low rumbling' sound - often not heard by the layman because of the noise the fan motor puts out.
Assuming you are talking about the outside unit and 'nothing' is running either fan motor or compressor then you might be 'in luck.' Because the most likely reason for the outside unit to be totally off will be a 'blown fuse' or a 'tripped breaker.' The good news is that in 'hot weather,' especially the kind of hot weather that has been present this summer (especially in the south) - blowing a fuse or tripping a breaker is not necessarily an expensive repair.
Indeed, it's not uncommon for a AC unit to blow a fuse (or trip a breaker) on occasion, although it must be noted that doing so is also is sign on something seriously wrong with your AC, i.e. a fan motor breaking down electrically or even a Compressor, both being expensive items to replace.
But, as I said, it's not uncommon for a fuse to blow once in awhile.
I would check my fuses (and breaker) and see if this is what has happened.
If you have fuses (usually located outside close to the condenser) and have no way to check them (you check them with a ohm meter looking for continuity) - then just 'replace' them with new ones. Note: always put 'time delay/dual element' fuses back in - even if the ones that are in there now are 'one time' fuses. 'Time delay' fuses do just what they say they will do - (they hold for just a second or two during that initial start up (of the compressor) without blowing).
If a blown fuse/tripped breaker is your problem then "most" of the time the AC will run ok and you will not have any more problems.
However, if after replacing the fuses and turning the AC back on - the fuse(s) blows instantly, or a short period thereafter (say a few minutes or an hour) then you probably have a problem that is causing it - i.e. the fan motor or compressor is going bad.
Note: one thing that you can fix that might be causing the fuse to blow is a dirty condenser. So, check the condenser coil (think of it like a car's radiator). It 'must' be clean to run properly and when it gets 'really dirty and clogged with dirt it will cause high head pressure and can cause the unit to blow fuses and trip breakers.
On of the common problem with centralized A/C unit is a bad condenser fan. I have known people who called an ac technician to fix their ac because of a bad condenser fan and suggested replacing the whole unit! Costing them a lot of money when all it needed was a 50 dollars condenser fan! If the condenser fan do not run or it runs only when you give it a push, it'sbad. You will also notice that it is vey hot. When replacing a condenser fan you may want to replace the starting capacitor too. Replacing a condenser fan is not very hard, just make sure that the power to the ac unit is turned off at the breaker box. Confirm that the wires are not live by using a meter or an ac tester. The fan motor are held with brakets sometimes just screws. Most fan you can buy that has reversible rotation by just reversing the plug. Make sure it is blowing upwards. If not reverse the rotation. So if you notice that the unit is not putting out cold enough air and you went outside and noticed the compressor running but not the fan, turn off the AC right away and do not use it untill the fan is replaced. Running the unit with a defective fan can damage the compressor caused by overheating.
Shut off the power before inspecting or repairing! I would check the wiring harness inside the condensor unit for loose connections and or broken wire first. Then you might try removing the capacitor to the fan (some operate both the fan and compressor) and have it tested. If all is OK then your fan motor is probably overheating and may need replaced. A bad capacitor can cause the motor to overheat. If you had a lightning storm just before the problem the capacitor is most likely the problem.
be aware that not repairing this asap that you are causing yourself more problems First I would change out the fan capacitor and see if this could be the problem. Secondly if the capacitor isn,t the problem change out the motor . By continuing to allow the system to cycle like this the compressor will take a dive on you costing more . Good Luck
I gather that it is the outdoor fan motor that runs a bit then stops.
Fan motors that stop by themselves are overheating and going into self-protect. The fact that you replaced the motor and capacitor opens up a whole world of "which wire is in the wrong place". I could do this if I could see it, but I can't see it. You're probably going to wind up calling a service man to sort out the wiring.