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Old 09-12-2008, 03:05 PM   #1
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How do I know which start capacitor to get?


Thanks to another thread I've narrowed the problem on a motor to a missing start capacitor. Thing is, no clue what to look for when looking to buy a new start cap.

There are two exposed wires on top are blue that must have connected to the cap.

Here's the info on the back label:

1HP
Type GS
Frame 182
EMI 9-302016-01
Code K
Cycle 60
Service Factor 1.25
Phase 1
RPM 1725
Volt 115/230
Amp 17/7.5
Cont. D.P. 40c
Insul Class A
Serial # 12F
Connection Diagram C32536
Spec (blank)
Form KCA

Anyone know what I need or where I should look to find the info?

Thanks in advance.

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Old 09-12-2008, 04:19 PM   #2
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How do I know which start capacitor to get?


Is it correct to assume you do not have the capacitor. If you do there will be a number like 400mf Micro Farad which is how cap. are sized.
If you don't have it you may contact the mfg. or a motor rebuilding shop for help.

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Old 09-12-2008, 04:36 PM   #3
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How do I know which start capacitor to get?


No I don't have it. It was missing when I got the machine. It operates a big vacuum and filtering system on a buffing and grinding station. It's a pretty old motor by Century and I don't think they're still in business. Think I heard somewhere it was bought up by another company though. I'd be surprised if they would offer specs or tech support for it.
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Old 09-12-2008, 11:17 PM   #4
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How do I know which start capacitor to get?


Some internet searching is showing AO Smith bought Century electric motors, but I haven't found anything on your motor using the specs. Got a model #?
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Old 09-13-2008, 12:01 AM   #5
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How do I know which start capacitor to get?


Nope, no model number oddly enough. Hopefully someone will know what to do heh
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Old 09-13-2008, 06:38 AM   #6
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How do I know which start capacitor to get?


If there is a motor rebuild shop near you go there they can help. If there is not one close by call the nearest one.
If I remember correctly (which I have a hard time doing anymore) the exact size replacement is not that critical but the rebuild shop can help.
Check Northern tool you may buy one cheaper than fooling with the one you have.
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Last edited by TazinCR; 09-13-2008 at 06:43 AM.
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Old 09-13-2008, 11:25 AM   #7
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How do I know which start capacitor to get?


Since the spec number is blank, that tells you the motor is proprietary to AO. Smith. All you have to do is Google AO. Smith and search for "Service Shop Locater". The number starting with "EMI" is all you will need. They can hook you up.
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Old 09-14-2008, 06:01 PM   #8
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How do I know which start capacitor to get?


hmm well that's good to know. I'll give it a shot when stuff opens tomorrow. Thanks
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Old 09-16-2008, 10:59 AM   #9
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How do I know which start capacitor to get?


Quote:
Originally Posted by J. V. View Post
Since the spec number is blank, that tells you the motor is proprietary to AO. Smith. All you have to do is Google AO. Smith and search for "Service Shop Locater". The number starting with "EMI" is all you will need. They can hook you up.
Let me rephrase my comment. The motor is proprietary to a customer. AO. Smith (Century) built it for that particular customer. AO. Smith is required to give you the name and phone number of the customer. That customer is your retailer, and any parts for this motor will be purchased from them.

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