Help with I’d of this capacitor

[Tciambotti1]

I just bought an 88 Starcraft. It has a duo therm brisk air on the roof. When powering on, I have power to the compressor and can get the fan to run if I start it by hand. I’m assuming the capacitor is the issue. Can anyone I’d this one? All of the markings are gone. Thanks everyone.

I guess I have a question first. How do you attach photos here?

[wa8yxm]

Good chance the start cap is .. capped (Ok so I'm a retired police dispatcher and that's slang for Killed).

There are numbers on it

Often something like 25 - 75 mFD
300 volt

Using your phone or camera "Shoot" the numbers
Now go to your local Electric Motor shop and show 'em.

[sayoung]

cougar28 wrote:
Go with a 30-5uf 370vac that the most common. Also if you can still read the name plate on the fan motor they usually alway state what size cap for it.

If you can also read the compresser model/make any hvac supply can look up correct MFD.
go with 440v as a little more durable .

[cougar28]

bob213 wrote:
Be on the safe side and de energize the capacitor before you play with it.
de energize

Now why did you go tell him about that. LOL I’ve work on electric motors for 30 + years and the new guy alway find out how they feel within a day or two!

[cougar28]

Go with a 30-5uf 370vac that the most common. Also if you can still read the name plate on the fan motor they usually alway state what size cap for it.

[wnjj]

Tciambotti1 wrote:

Taxman2436 wrote:
Do you know the make and model of the A/C unit?

Lenny

Not really. I can’t find any model number or stamped plate for that matter. All I have to go on right now is that the pop up is an 88 and the covers say duo therm brisk air. The capacitor is a 3 post ( herm, c, f )

That is a combo fan and compressor cap.

Herm=compressor
C=common
F=fan

[Tciambotti1]

Taxman2436 wrote:
Do you know the make and model of the A/C unit?

Lenny

Not really. I can’t find any model number or stamped plate for that matter. All I have to go on right now is that the pop up is an 88 and the covers say duo therm brisk air. The capacitor is a 3 post ( herm, c, f )

[bob213]

Be on the safe side and de energize the capacitor before you play with it.
de energize

[Lwiddis]

I’d not sure. Need more information, picture.

http://photoposting.is-great.net/?i=3

[Ranger_Smith]

Tciambotti1 wrote:
I just bought an 88 Starcraft. It has a duo therm brisk air on the roof. When powering on, I have power to the compressor and can get the fan to run if I start it by hand. I’m assuming the capacitor is the issue. Can anyone I’d this one? All of the markings are gone. Thanks everyone.

I guess I have a question first. How do you attach photos here?

The fan capacitors are usuallly 5 to 7 uf at 370vac and compressor capacitor is usually a 35uf at 370vac. Any capacitor in those ranges will work.

[Taxman2436]

Do you know the make and model of the A/C unit?

Lenny