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09-22-2012, 09:43 AM
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#1
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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A.C.Capacitors
I am planning to replace the Capicitors in my AC unit next spring
once upon the roof i would like to have the correct replacements.
Can somone confirm the ratings
30/5 MFD 370V Run Cap
43/56 Mfd 250 V Start
Duo Therm Dometic
Model 59515.331
Serial 210-30311
2002 Montana 2955RL
Thanks Ken
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09-22-2012, 10:06 AM
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#2
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Montana Fan
Join Date: Oct 2006
Location: East Moriches
Posts: 418
M.O.C. #6436
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Unless they are defective there is no need to replace them.
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09-22-2012, 11:35 AM
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#3
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Montana Master
Join Date: Oct 2007
Location: silver creek
Posts: 1,507
M.O.C. #7770
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Can I ask why? A capacitor when they fail,they fail, will work normal until then. even a new one might not last as long as the one you now have.
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09-22-2012, 12:38 PM
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#4
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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I agree, some last for 20 years, some do not, as stated, the new one will probably fail quicker, as they find cheaper and cheaper ways of making them each year. The plant that was shut down 2 years ago when there was a shortage was down in Mexico.
If you want, just buy one and throw it in the drawer for an emergency.
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09-22-2012, 09:56 PM
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#5
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Montana Master
Join Date: Jan 2006
Location: South
Posts: 2,499
M.O.C. #5140
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In our limited experience, the OEM airs do not come with hard start capacitors, so we added one.
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09-23-2012, 01:34 AM
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#6
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Seasoned Camper
Join Date: Sep 2006
Location: Palm Bay
Posts: 50
M.O.C. #6278
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I agree with Ozz, and Michael had to replace ours and added the hardstart works great
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09-23-2012, 01:50 AM
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#7
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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Quote:
quote:Originally posted by Ozz
I agree, some last for 20 years, some do not, as stated, the new one will probably fail quicker, as they find cheaper and cheaper ways of making them each year. The plant that was shut down 2 years ago when there was a shortage was down in Mexico.
If you want, just buy one and throw it in the drawer for an emergency.
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Ozz do you know the ratings ?
At least I would like to have a spare
I sold supplies including Capacitors to motor repair shops for over 40 years I can pick up spares from an old customer at a good price
any help with ratings would be helpfull
Ken
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09-23-2012, 02:35 AM
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#8
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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Any generic hard start kit would work within the ratings, the electronic ones are good, you don't need the cap and relay combo that way: http://compare.ebay.com/like/110915534400#
The dual, or split caps serve both the compressor and the fan motor.
I will look and see if I can find that, where did you fin the numbers you posted?
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09-23-2012, 03:20 AM
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#9
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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Quote:
quote:Originally posted by Ozz
Any generic hard start kit would work within the ratings, the electronic ones are good, you don't need the cap and relay combo that way: http://compare.ebay.com/like/110915534400#
The dual, or split caps serve both the compressor and the fan motor.
I will look and see if I can find that, where did you fin the numbers you posted?
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Not sure what site I got those rating they are not specific to my Model number 59516.331
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09-23-2012, 03:29 AM
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#10
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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I searched and came up with zip and pip, all I found was a heat pump. You might have to remove the cover and get the numbers off of yours, they are on the cap. When I searched i found hard start kits come with the heat pumps, maybe not regular units I don't know, haven't looked at mine. Some hard start kits are really compact, only 1 1/2" round, some black some blue on the smaller A/C units.
I don't work on the RV units, but they are basically window units on vacation
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09-23-2012, 03:51 AM
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#11
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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Thanks Ozz I will remove the cover in the spring get the numbers and that way i will have a spare.
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09-23-2012, 04:05 AM
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#12
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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OK, you can get them here:
1119 Southeast 12th Court
Cape Coral
(239) 242-8796
Johnstone Supply
www.johnstonesupply.com/
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09-23-2012, 04:33 AM
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#13
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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Quote:
quote:Originally posted by Ozz
OK, you can get them here:
1119 Southeast 12th Court
Cape Coral
(239) 242-8796
Johnstone Supply
www.johnstonesupply.com/
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Yep I sold to Johnstone Supply
Thanks Ozz
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09-24-2012, 04:18 PM
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#14
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Montana Master
Join Date: Jan 2006
Location: South
Posts: 2,499
M.O.C. #5140
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On our OEM used a Supco spp6
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09-25-2012, 02:06 AM
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#15
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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Hard-start capacitors are sold for a range of A/C sizes, the one Michael bought is for 1/2 H.P. to 10 H.P., so you can see it is not critical which one you get. 1 H.P. is a 12,000 BTU, or 1 ton unit.
The run cap's are different, you need to replace them with the same one, actually you can fudge a little in a pinch, but it is best to replace a 5 MFD 45 440 with the same (as an example size)
The dual capacitors, or 'split' caps have one common terminal and a 'herm' marked: (Compressor) and a 'fan' marked terminal, don't mix these wires up.
Dual Cap:
http://tinyurl.com/9b8ps3h
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09-25-2012, 05:03 AM
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#16
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Montana Master
Join Date: Jan 2006
Location: South
Posts: 2,499
M.O.C. #5140
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Didn't know that. Thanks Ozz.
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