Condensor Capacitor


G

GigDaddy

My 9 year old goodman ac quit working over the weekend. Had a friend
that knows a little about ac look at it. He said that the run
capacitor for the compressor was bad. The one that was in there was
rated at 35 micro farads. He put in a 45 micro farad one and said that
there would not be a problem. The system runs now but the different
size capacitor has me concerned. Will this cause a problem or not?

Thanks,


GigDaddy
 
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G

GigDaddy

Not a flame..

You said it best...your friend knew a LITTLE about AC..in this case, one
must wonder why he screwed you on such a cheap part.

And in a Goodman, it should have been a 5-35-370....

If you mean screwed as in price, it was all free. If you mean screwed
as in the wrong part, please explain.
 
G

GigDaddy

Not a flame..

You said it best...your friend knew a LITTLE about AC..in this case, one
must wonder why he screwed you on such a cheap part.

And in a Goodman, it should have been a 5-35-370....
btw, he put in a 5-45-440.
 
G

gerry

[original post is likely clipped to save bandwidth]
My 9 year old goodman ac quit working over the weekend. Had a friend
that knows a little about ac look at it. He said that the run
capacitor for the compressor was bad. The one that was in there was
rated at 35 micro farads. He put in a 45 micro farad one and said that
there would not be a problem. The system runs now but the different
size capacitor has me concerned. Will this cause a problem or not?

Get the right part and put it in before things get worse.

Actually, there probably will be no harm but one can never be sure. A
higher than correct value cap will most likely increase current in the run
circuit which increase heat and electrical consumption. Generally those
are not good.

If the cap failed on its own (cheap Chinese crap) than all is well with
the correct size. If the cap failed due to compressor issues, the system
isn't "fixed" and will need professional attention and not be cheap. A
correct part can't hurt, but may not be the root cause.

gerry
 
F

ftwhd

btw, he put in a 5-45-440.
Its ok to go up in voltage. No problem what so ever.

As far as the capacitance, you should only oversize 10% on a run cap
and 20% on a start cap. There now thats the real facts with out all
the BS crap youve been handed.
 
D

DIDO

GigDaddy
observe information that "ftwhd" have gave you
he is 100% right
good luck from Dido
 
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P

PrecisionMechanicaL

DIDO said:
GigDaddy
observe information that "ftwhd" have gave you
he is 100% right
good luck from Dido
Unless Stormin or some other moron had come in before that....and already
done put one in there that was off-sized by a notch or two (or maybe
three)...
 
P

PrecisionMechanicaL

aka-SBM said:
It happens all the time..some fool comes in, slaps the wrong part in and
leaves it.
Yeah I do that sometimes, but only on my own equipment--and it's very seldom
that I do work on other's.....I always will put a note in there telling me
what value it's sposed to be, then I go about getting the proper one....

A few months later, when its hotter than hell out and everyones busy as
hell, they call the guy back and wonder why they need a new compressor.

For those that say its ok to put the wrong parts in, one question.

Do you do that to all your customers? **** em hard that is?
Mom called this morning....

My stepfather is having problems with his Coleman unit.....condensor unit
went out a week or so ago...

He's 100+ miles away and he in his mid 70's...Mom says that he done fiddled
with the stat settings...was trying get it to go into cooling mode, and now
the heat pump won't fire up at all, appears to be running aux strips only...

Shit...I dont know the controls on taht unit--can't see em from here, and
never looked at the unit(s) at all except for the sheetmetal....I magine
they're breaker and or / stat-resettable but maybe there's a one-shot HP
limit for all I know--though generally it's hard to get a HP trip condition
upon fiddling with the stat at any rate....

He was takin a nap when I talked with Mom, so I don't even know what stat he
has or if it's manual or auto changeover....

Maybe call him in a couple days--she says he's planning to get a tech
out...but if it goes for too long I might have to advise over the phone or
at least take a look at it next time I get up that way...<sigh>

Bright side though--they imediately thought about maybe calling me to come
have a look at it....and quickly changed their minds <G>
 
S

Stormin Mormon

The general consensus is that the right size cap is what the
manufacturer called for. I'd suggest to get the right one, and put in
some time of your convenience.

One time last year I ran a Goodman unit on a 5/35-370 when it called
for a 5/30. Went and replaced it a couple days later when the parts
houses were open. And took that moment to do the other maint it so
badly needed.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
..

My 9 year old goodman ac quit working over the weekend. Had a friend
that knows a little about ac look at it. He said that the run
capacitor for the compressor was bad. The one that was in there was
rated at 35 micro farads. He put in a 45 micro farad one and said that
there would not be a problem. The system runs now but the different
size capacitor has me concerned. Will this cause a problem or not?

Thanks,


GigDaddy
 
P

PrecisionMechanicaL

aka-SBM said:
If you want, get me the model # and serial...Ill look it up and its prob a
York Latitude. Simple controls, and Id say only slightly common for the
board to be fried, but it DOES have a 3 min delay timer that has been known
to fail. If its higher than a builder grade, there are two pressure switches
on them, and the LP switch is common to stick.

Call me in the morning after 10am EST and Ill even hook you up with the
Yorknet page if needed.
Thx for the offer..

Might not happen that fast though....(beings he's such a nasty ole fucking
cuss)--prolly he'll just hire inna a tech...maybe even get it in the butt
and then bitch later ( oh well )....this despite all the help he might
eventually have gotten for free--my feelings that he's probly not wanting to
put me (and/or esp my associates out even a penny's worth of time for it
all ).

IF I get up that way, (and if he's still not gotten it fixed), then I'll do
the basics, punch down the compressor contactor etc....and get all the
numbers etc and then get back to ya if needed.

Thanks again.
 
B

B-Hate-Me

aka-SBM said:
While it probably wont hurt it short term, since the windings are probably
about shot anyway, Im assuming he didnt meg the compressor to see if there
was an issue that actually caused the failure, or if the windings would
take the larger cap. Goodman units normally come with a 10 year compressor
warranty, and the first thing we do when we get a call on a compressor
replacement is check the cap...wrong one, no warranty. Thus, if your unit
still is under the factory 10 year compressor warranty, you have just
allowed your neighbor to void your warranty.
I've never had a supply house ask for the cap back.

Friday I had a guy come by the office. He was on his way
to a supply house 15 miles away to get a 7.5 mf cap. He asked
if we had one, I took a walk with him to the warehouse and found
one brandy new in the box. I told him that we charge $68.50 in
the field but I'd let him have it for 20 bucks.

He flipped out...Said that he could get one for $9.00.

I told him to have a nice drive.........
 
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O

Oscar_Lives

aka-SBM said:
Yea..one of your hose jobs Im sure.

I bet you do that to every unit you run across..

Not real honest for a so called Mormon are we? If you were, you would
admit you are fucking clueless, and get some training at your own expense,
not your customers.
Oh, now that one left a mark.
 
B

Bubba

Its ok to go up in voltage. No problem what so ever.

As far as the capacitance, you should only oversize 10% on a run cap
and 20% on a start cap. There now thats the real facts with out all
the BS crap youve been handed.
NOPE! Sorry Mike. That is WRONG!
Why you ask? Because you have to apply those principles to real world
situations. What happens in the field is :
Friend of a friend hack number 1 shows up and puts in a new cap
oversized by 10%.
It gets real hot out or a storm hits and the cap goes again.
Now, bone-head bar buddy number 2 shows up without the right part and
oversizes it by ANOTHER 10%.
It goes out again and Stormy shows up. He sees a 45mfd cap in and only
has a 55 mfd in his Pinto. He says, "Ahh what the hell. Its only 10
mfd over. It prob wont hurt".
Now its well beyond 50% over its rating and somewhere along this story
the compressor becomes toast.
There are different size capacitors for a reason. Not just for you to
"willy nilly" add a 10% increase and hope it wont hurt anything.
Bubba
 
B

Bubba

Yea..one of your hose jobs Im sure.
It was. Dont cha remember?
That was Stormy's night weekend trip where he hosed some old couple on
the weekend because he didnt have the right shit. Said he went back
later that week but that was after all kind of back peddling he
started after YOU called him on his shit.
Id look it up but chit like that just aint worth the effort. I just
remember it. Typical Stormy crap.
Bubba
 
N

Noon-Air

B-Hate-Me said:
I've never had a supply house ask for the cap back.

Friday I had a guy come by the office. He was on his way
to a supply house 15 miles away to get a 7.5 mf cap. He asked
if we had one, I took a walk with him to the warehouse and found
one brandy new in the box. I told him that we charge $68.50 in
the field but I'd let him have it for 20 bucks.

He flipped out...Said that he could get one for $9.00.

I told him to have a nice drive.........
Even at $9.00 he is getting bent over......8 times
 
N

Noon-Air

Bubba > said:
NOPE! Sorry Mike. That is WRONG!
Why you ask? Because you have to apply those principles to real world
situations. What happens in the field is :
Friend of a friend hack number 1 shows up and puts in a new cap
oversized by 10%.
It gets real hot out or a storm hits and the cap goes again.
Now, bone-head bar buddy number 2 shows up without the right part and
oversizes it by ANOTHER 10%.
It goes out again and Stormy shows up. He sees a 45mfd cap in and only
has a 55 mfd in his Pinto. He says, "Ahh what the hell. Its only 10
mfd over. It prob wont hurt".
Now its well beyond 50% over its rating and somewhere along this story
the compressor becomes toast.
There are different size capacitors for a reason. Not just for you to
"willy nilly" add a 10% increase and hope it wont hurt anything.
Bubba
I guess its too easy to look in the book to see what capacitor is required
for any particular compressor??
 
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B

Bubba

I guess its too easy to look in the book to see what capacitor is required
for any particular compressor??
Book?
There's a book?
hehehe
Bubba
 
P

PrecisionMechanical

Bubba > said:
NOPE! Sorry Mike. That is WRONG!
Why you ask? Because you have to apply those principles to real world
situations. What happens in the field is :
Friend of a friend hack number 1 shows up and puts in a new cap
oversized by 10%.
It gets real hot out or a storm hits and the cap goes again.
Now, bone-head bar buddy number 2 shows up without the right part and
oversizes it by ANOTHER 10%.
It goes out again and Stormy shows up. He sees a 45mfd cap in and only
has a 55 mfd in his Pinto. He says, "Ahh what the hell. Its only 10
mfd over. It prob wont hurt".
Now its well beyond 50% over its rating and somewhere along this story
the compressor becomes toast.
There are different size capacitors for a reason. Not just for you to
"willy nilly" add a 10% increase and hope it wont hurt anything.
Bubba
Not to suddenly come to Mike's defense here, but....

If one investigates first, and so he knows what size is *really* supposed to
be used, then his advice is pretty well valid....and what with my knowing
union practices fairly well firsthand, generally plenty of time will be
allowed for said investigation....

Else....suggest just use random numbers--every third cap replacement or
so...go with one that is undersized a tad from what was found to be in
there.

Curious, anyone mentioned their winning the lottery lately ?
 
B

Bubba

Not to suddenly come to Mike's defense here, but....

If one investigates first, and so he knows what size is *really* supposed to
be used, then his advice is pretty well valid....and what with my knowing
union practices fairly well firsthand, generally plenty of time will be
allowed for said investigation....

Else....suggest just use random numbers--every third cap replacement or
so...go with one that is undersized a tad from what was found to be in
there.

Curious, anyone mentioned their winning the lottery lately ?
You've obviously not been in the resi field or you would understand.
"If one investigates........." would be a key factor to the equation.
If you could get that to happen everytime, you sir, would be a genius.
Bubba
 
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F

ftwhd

Not to suddenly come to Mike's defense here, but....
Better be careful Sam.
If one investigates first, and so he knows what size is *really* supposed to
be used, then his advice is pretty well valid....and what with my knowing
union practices fairly well firsthand, generally plenty of time will be
allowed for said investigation....
It doesnt take that much time to look up the electrical components in
a Cope or Tecumseh or Bristol book. If the books dont have it listed
for whatever reason, a quick phone call will verify the correct
replacement.

Your point is valid and I should have included something along those
lines but its second nature to me to take the time and find out some
details.

Besides, the ommission gives some fools reason to rave on about this
or that and provide you, and others with entertainment. Kinda like
poking the stick at a mad monkey. Scary huh. LOL

I assume most guys check and dont need to be told.
My bad.
Else....suggest just use random numbers--every third cap replacement or
so...go with one that is undersized a tad from what was found to be in
there.
Abnormal interlinear start and run loaded amp draw indicates a
problem. Easy to check with any clamp-on RMS amp meter. :]
..
Curious, anyone mentioned their winning the lottery lately ?
I won 5 grand a month ago.
 

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