I don't have the specifics of my hvac on hand but recently it started
failing on me. The first time it failed was early this summer when I
first turned the ac on. The outside condensing unit fan was not
spinning and of course no cold air was coming out of my vents. The
indoors blower/coil was fine.
I called a tech and he replaced the "coil" which he said was the
problem. He told me that the coil was failing and that was why the
condensor fan was not starting. Before he replaced the coil he was
able to get it started by giving it a turn.
Today, a month later, the same thing has happened. I went home durring
lunch to find that the condensor fan was not spinning. I killed the
breaker and took an access panel off so that I could access the fan in
order to give it a nudge and apply power. However, before I did that I
thought that I would try to flip the breaker one more time and apply
power to the unit. It came on and is working now.
So my question is a general one. What parts of the unit are
responsible for the fan operation? What should I have a tech look at?
No, I don't plan on fixing it myself but after paying a tech already to
"fix" it once I'd much rather be armed with information the next time
around. The last time I felt so naked without some sort of knowledge.
Thanks for any info you can give.
sure would be nice to know if you have a heat pump or straight ac
condenser. might make a huge difference.
from the sounds of your gibberish, the tech was probably referring to
the capacitor for the CF motor.
depends on if its a heat pump condenser or straight ac.
What should I have a tech look at?
Look for a tech in his late 40's or 50's. Chances are you'll be
getting someone who has a clue what he's doing, and there's a high
probability he's honest as well.
Next, stand over his shoulder and watch every single thing he does.
Ask him to explaiin what each component does, and how they interact
with each other.
Ask him to explain how hot air from inside your house is transferred
I have a heat pump. The "coil" he replaced was indeed a capacitor, so
that's been done. The way he described the part was that it was sort
of like an ignition coil for an automobile. With the prevelance of
coils in these systems I should have used the proper word "capacitor"
to describe the part that has been replaced.
I was reading yesterday and some notes I took were:
compressor windings resistance
tripped overload ???
defective lockout relay
I'm thinking that whatever it is only requires a power cycling to
reset. The wiring looks good, as in not all ratty, corroded etc.
The capacitor was replaced by the tech when he came out. I'm thinking
that it is the fan motor bearings or something along those lines. The
unit is still working fine since I posted the original inquiry to this
Sometimes I hear a loud metal to metal screech when the unit is coming
to a stop. Like eeeeeennnk thump, then it's off. Doesn't happen every
time but I know it's not proper.
As for calling the company back, nah, not yet. The tech seemed nice
enough and I know that a correct diagnoses is sometimes dificult when
the unit is operating fine most of the time. So I don't have any
reason not to call them back but we'll see.
agatto2 had written this in response to
You could try a new capacitor ( the fan motor should have the right
microfareds on it- might be marked mfd's-) Some tecks will carry a spare
just to test. Some might have a used bad one as well. There is a way to
test the capacitor, If i remember correctly you put an analog meter on
resistance touch the two posts on the capacitor, the needle should jump
then slowly move back if the capacitor is good.
As for the EEEEEeeekkkk on the stop- Check that the amp draw, again the
tag on the motor should say what the motor draw should be. Make sure you
check after running for a while , and with the cover on the unit.
I would also check that the fan cage is not touching anything , or if you
would be able to pull, or push it a little. If it hits something metal
while your spinning it, you have a bearing problem or the fan blade is
warped, or needing realigning. Do you have Oil Ports for the Motor?
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