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Garage Door opener capacitor replacement

jberube

Mar 24, 2014
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Hi,

My garage door opener needs a new capacitor. The current one is 53-64 mfd 450VAC. I can find several 53-64 mfd, but they are not the same VAC. The ones I can find are 220VAC or 250VAC. Can I use the 220 or 250VAC to replace the capacitor? I appreciate your help!
 

Minder

Apr 24, 2015
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Are you in N.A.? i.e. 120v AC?
If so you can use the 220-250 but ensure they are AC motor run rated.
M.
 

jberube

Mar 24, 2014
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Hi Minder,

Yes I am in the US. So as long as the capacitor says motor start capacitor, it will be ok? What about a capacitor that is 330VAC? Would there be any difference in performance of the door opener?
 

Minder

Apr 24, 2015
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If motor rate there should be no difference.
M.
 

davenn

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Sep 5, 2009
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The current one is 53-64 mfd 450VAC. I can find several 53-64 mfd, but they are not the same VAC. The ones I can find are 220VAC or 250VAC. Can I use the 220 or 250VAC to replace the capacitor? I appreciate your help!

you need at least the same voltage rating ... higher doesn't matter
 

dorke

Jun 20, 2015
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You should know or measure the actual operating voltage of that motor.
For 220V you should use the 450V(and above) CAP. only!
For 120V you can use the 220VAC , 250VAC or 330VAC caps.

Do what is the actual voltage of the motor?
 

Minder

Apr 24, 2015
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Hi Minder,

Yes I am in the US. So as long as the capacitor says motor start capacitor, it will be ok? What about a capacitor that is 330VAC? Would there be any difference in performance of the door opener?

In N.A., Chamberlain is one of the largest residential door opening systems, supplies Sears etc, they typically use a 220/230v rated capacitor.
Higher voltage will make no difference .
M.
 
Last edited:

Minder

Apr 24, 2015
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P.S. Preferably obtain one of N.A. origin, NOT offshore.;)
M.
 

jberube

Mar 24, 2014
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You should know or measure the actual operating voltage of that motor.
For 220V you should use the 450V(and above) CAP. only!
For 120V you can use the 220VAC , 250VAC or 330VAC caps.

Do what is the actual voltage of the motor?

Dorke, how can I measure the voltage of the motor? Multimeter? It plugs into a standard 120 outlet. I am just going by what the capacitor says.
 

dorke

Jun 20, 2015
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If it plugs to 120V outlet,and it worked before the fault ,it is a 120V motor.
In this case you can go along with the lower capacitor voltage.
The operating voltage of a motor should be written on it.
 

jberube

Mar 24, 2014
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Mar 24, 2014
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Ok, so I replaced the capacitor which I thought was the problems and I still get the same result. The motor does not operate and all I hear is a click and some humming if I hold the open button down. I have included a video and some photos. Any ideas what's wrong?

Here is the link for the video: https://expirebox.com/download/bc873f4fbd0411a2d1c977138af28569.html
 

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jberube

Mar 24, 2014
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When you say belt off are you talking about the belt that opens the door or the belt inside the opener?
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Jan 21, 2010
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The belt connected to the motor.

I.e. does it operate without the physical load attached to the motor?
 

73's de Edd

Aug 21, 2015
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Sir jberube . . . . . .

Your solenoid pin is driving a pivoting delrin plastic intermediate mechanical coupling into a power latching switch.
It thereby has the power capacity to handle the voltage / power switching between motor run directions, that the small limit switches mounted on the drive rail ends at start and stop positions, wouldn't be capable of handling.
That appears to be quite an older unit . . .whereas the motor looks newer. Seems like Genie might have bought Powerlift out, years ago.
LOOK a l l l l l l l l l l over and around that motor to see if there might be a thermal switches RED pushbutton that has tripped and popped out and needs a push in to be reset.
Also your main drve V belt has dry rotted down to its cords.

73's de Edd
 

Minder

Apr 24, 2015
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I have had the plastic gears seize also when these are fitted.
M.
 
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