I am fairly clueless about it, please forgive me if my questions are
-The current motor is 1075 rpm 4spd (direct drive), do I need to go with a
4spd motor replacement or a motor with smaller # of speeds will do. I cannot
set the speed with the thermostat, so I presume thermostat sets the speed
internally, based on its own built-in rules. I am guessing then that less
then 4 speed motor will not work or will not be as efficient.
-The motor is 1/3 HP, does it make any sense to go with a slightly more
powerful motor, i.e. 1/2 HP? Any advantages/disadvantages?
-The motor has an external capacitor 5/370. Can I get a replacement motor
with different capacitor's parameters, assuming all the rest of the motor's
parameters and dimensions are the same. Will it work or the motor must have
exactly the same capacitors.
-What's a good and inexpensive place to buy the motor on the internet? What
should I expect to pay for it: 115V, 1/3HP, 60HZ, 5.8 AMPS, 1075RMP 4SPD
Thanks a lot for your help
Get a *competent*, licensed, professionally trained, HVAC technician to get
the problem diagnosed and corrected properly. It will save you money in
the long run.
I had a customer that wanted to do it himself. He burned his brand new
motor and still had to pay me to come out and install a new motor
Dont mess with it .. Im a homeowner, and smart enough to know I
wouldnt mess with my 4 speed and possibly bad circutry, Or blow it
all up and loose any warranty and circut board at my cost , Plus
What caused the problem?
Well if it's like the one the other day..........
.........someone put in a 1/3 hp in place of a 3/4 hp motor........Ooops.
And to the OP, call a competent, Licensed, Insured, Trained HVAC Tech to
resolve your problem!!
If it was soooooooo easy, you wouldn't be asking all the questions now would
( kjpro @ starband . net ) remove spaces to e-mail
Want it done yesterday? Or done right today, to save money tomorrow!!
There may have been 20 people on that day who wanted to do it themselves.
One failed, and became your customer. The other 19 succeeded, but you'll
never know about their success cause they had no reason to call you for
help. What I am trying to say is that being an HVAC pro, you only deal with
those who failed, you have no idea how many do get the job done successfully
And indeed, people fix their houses, roofs, floors, cars, appliances,
electronics etc, why not HVAC. Some of the jobs I would not risk and would
indeed leave to professionals, but replacing a motor does seem quite doable
to me. I already took it out, all I have to do is buy a new one and put it
So, if anybody has answers to my original questions, I'd appreciate it very
We read about a few that die by electrocution as well doing this stuff..
HVAC is the only trade that is regulated at the local, State and Federal
level. Granted, you are replacing a motor.....but, replacement with a larger
HP, or the wrong speed, and you have issues you didnt have before.
Then, where are you at?
No...its not that simple...what speed was the old motor set at? For cool?
For heat? Low, Med Low, MedHigh, or high?
Did it have 6 or 7 wires off it? What if the new one has one more, or one
less? You know, some do NOT come with wiring directions. Shaft size? Shaft
Well...you can try your local HVAC supply center, but, most legitimate ones
do not sell to a homeowner, and will charge you prob more for the motor than
your tech will.
A tech, again, can tell you if it was indeed the motor, a relay, a cap, a
fan control center or temp overload that failed and repair as needed...and
can do it normally in less time than you have spent thus far, trying to save
CBHvac, your computer clock is ahead by 3 hours. That's ok if you prefer it that
way but it makes the message continuity very strange when sorted by time.
Need any help adjusting that? :o)
Is it set on your correct time zone? I assume the time of a message
transmission that shows up on our individual computers is adjusted to our own
individual time zones. I'm in EDT and that is GMT - 5 hours.
not do it. I am researching, reading, asking questions, learning etc. That's
why I asked the question to this newsgroup and now thanks to you btw :-) I
know that I should get same HP, RPM, Speeds etc as the original.
When I disconnected the motor I made sure to write down which wire
represented what speed and where on the board it was connected. When I am
getting a new motor, I'll make sure that the number of wires are the same
and that it comes with instructions. I'll certainly make sure the shaft
dimensions are the same as well.
more than just money of course, I truly enjoy doing things on my own, it's
hard the first time around, but the more you do the easier it becomes (and
the more you save).
I do appreciate your responses and information you provided. I do intend to
follow your advice, I will probably go with a local electrical supply store
like Grainger mentioned in another response and make sure they
cross-reference my motor. Then I will run it by a local HVAC professional to
double check that I am getting the right unit. Then I will try to install it
on my own and if after all the preparation and research I get electricuted,
I guess I do not deserve a better lot :-)
Thanks a lot for your help.
See, that's where your story gets blown out of the water. Not only
are you going to suck up the free advice given (willingly) here,
but you plan to somehow get a free opinion from your "local HVAC
professional" for some more n/c guidance? What do you plan on
doing, having him order you one, bring it into your home so you
can get a look at it, and then cancelling the job on some bullshit
As much as it pains me to agree with CBHvac (trust me, we have
some "history") I do 100% in this situation. You're a cheapskate,
period. You deserve everything bad that could possibly happen to
you in this situation. Break a leg.
It COULD, but you and I both know, most people have changed a light bulb
more than once...not so with a blower motor.
NP...if you are going to do it, simply be careful, dont make stupid
6 wires? 4 speeds....hummmm.....can be done...but what you just described,
is a 3 speed motor....
One wire for common, 3 for speeds, and 2 for the cap....
if you had ONE for the cap, with the cap being fed off a hot....I can see
Umm....lets see...$40 labor on an easy to get at motor? Yea..I can see it,
and thats why I said it. However, in NJ, no....LOL..I cant.
One word of warning....if you DO use Grainger...(shudder) do NOT get a
Dayton motor....AOSmith or GE. Grainger is not the cheapest place to get
one, and the Grainger here will NOT sell to a homeowner. Just be prepared.
What I find quite interesting is that you and quite a few other people
alluded to the fact that I would get a better deal on the motor then if I
buy it myselft. Do not get me wrong, it may well be but it goes totally
contrary to my experience with contractors/repairs in any other area.
I have no doubts, that the contractor himself, buying wholesale will get a
better deal on the motor (or anything else for that matter) then I ever
could, but I do not have any reason to believe that he will pass the savings
on to me. Just like everyone else he is in business to make a profit, he
knows wholesale prices, he knows retail prices, he knows that HO in most
cases have no idea about prices, but that he (HO), his wife, kids and dog
are awfully hot without A/C. If this is not a perfect chance to overcharge,
I do not know what is.
I just took my car to a dealer, was quoted list price for parts and 8 hours
of labor. Went to an independent mechanic and got list prices for parts and
5 hours of labors. Bought absolutely the same parts (OEM, new) on the
internet and paid about 40% of the list price.
And generally speaking you guys draw a very rosy picture of working with
pros. They show up on time, fix it, charge for 1 hour of labor and below
retail price for parts, do a perfect job and send you a christmas card.
How about an unfortunately more typical schenario - they schedule an
appointment any time during the day and you have to be home all day to wait
for them. They do not show up. When they eventually do show up a few days
later having you wasted one more day, you are totally at their mercy. You
already owe them money cause they charge $75 just to show up. They take 2
hours to diagnoze, then they claim that 5 parts need to be replaced. They
also claim that the parts are very hard to get to, so the labor cost will be
high. They also quote you the price of parts twice as high as what it should
be. On top of it they say that they do not have the parts in stock and they
would have to come back some other day.
You of course have no way of knowing whether they are being honest. What you
do know is that if you do not accept their terms, they will charge you for 2
hours of labor and leave you with a mess. You would have to start all over
with another contractor and chances are quite good that other contractor
will not be any better then the first one.
When it is finally done, they leave you with a $600 bill, the motor is noisy
and vibrating and they would not come out and fix it unless you pay for the
Obviously this is not personal and has nothing to do with HVAC people per
se, the whole scenario is unfortunately way too common in any field - be it
car repair, construction, remodelling or anything else. Even doctors and
lawyers do it all the time to their customers. And the advice of getting
good references/word of mouth etc is as old as it's often useless.
Happens all the time.
Unless of course, you use Chris up in NY...now..hes illegal, so he has to
sell you the motor for what he paid for it, or he becomes a contractor..and
can get busted.
Ah...but most of my customers DO have an idea about what parts
cost....retail. When they get a quote and the entire quote is under what
they expected to pay...then something amazing happens.....they suddenly
realize how bad the trade was getting.
My electrician called the other day...needed a pool pump motor. He could not
find one for under $200 for the particular model he had.
2 phone calls, and I had one for $90. His customer was getting prices of
over $225 for the motor, and when Ray installed the motor for $160, everyone
Well...this is a no brainer...really.
Your independent guy MIGHT be as good (assuming your dealer is up to date
and really cares..I know...rare) as the dealer.
The dealerships make most of their profit in the parts and service
department...(percentage wise) and the idea is that you have a factory
trained tech that knows your car better than the guy down the street. Thats
the logic in the higher prices.....per hour anyway.
Truth is simple....your local independent surely has less overhead, and does
not need to charge as much per hour to remain open and in biz. Having been
in the automotive industry (even today in a small way) all my life, thats
the cold hard facts there. Most independents I know are pretty good. There
are good and bad in all trades...every one...its what you feel comfortable
Some do...we do....the one hour labor thing...depends.
Keep in mind...if that was a VS motor, it would be an EASY $500 to replace,
and the markup would be about the same at THAT price if it was $200 for a
standard replacement. Some are very expensive.
No call? No work. Period. If a service comapany is not there, there are
others you can call.
Some do not charge service or truck fees....sometimes it takes 2 ormore
hours to locate the problem correctly. There are times, when there is a
problem that you MUST be 100% sure that all the bases are covered, or else
you will be back again in short order. Sometimes, 5 parts DO need to be
replaced...that Variable speed motor I was talking about.....motor goes, you
might need a controller too....and thats not cheap either...its not always
the tech trying to make a buck...its the way things are done...in the unit,
that require such a pain in the ass troubleshooting techneque and parts.
State Licence Board.
True, and this is why you are starting to see a huge swing of self policing
in the trades.
State Licencing Board.
Of course not...and you know..there are times when as a contractor, you
wonder why you cant prescreen customers from time to time too...
Then he has the "direction" to deal with........LOL
(this thing doesn't blow any air) Hehehehe..
( kjpro @ starband . net ) remove spaces to e-mail
Want it done yesterday? Or done right today, to save money tomorrow!!
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