2004 Basement AC Capacitor Question

[cef2lion]

The bearings I got based on a thread I read are ball bearings. not much more in cost then the brass bushing. They said they reused the carrier that held the brass bushing on. They said the carrier that came with the ball bearings didn't match up with the mounting holes or something. Will know more when I get in there.

[Journey cat]

Originally Posted by cef2lion

The bearings I got based on a thread I read are ball bearings.

I believe that was posted by Duner ?
Although no mention of a replacement for the inner cage in the instructions .

[cef2lion]

It was Dunner. Nice write-up in PDF format. I keep it handy. If I recall the inner cage is already plastic and unless damaged no need to replace. The outside cage is the one to consider switching to plastic if currently metal.

I like the basement air concept. Shame they moved away from it. I don't mind giving up the potential compartment space for the unit.

[imnprsd]

I replaced 2 run capacitors last month and used 45uF, +/-5% and they were very easy to get to. Just remove the front cover plate.

My old basement run caps were 45uF, +/- 10%.

And I just found one parts list that calls for 30uF capacitors. So I don't know if it matters, but I can tell you the 45uF, +/- 5% is working great. These were $20 each.

Who knows for certain what the right Run Capacitor size is?

How often do these need replacing? I get the impression 5-7 years is about right, but this is just a guess. You can measure them to be sure, but it seems to me you would be better off replacing these capacitors as part of a PM service vs. waiting for them to fail.

Note: I did not replace the start capacitors.

[cef2lion]

My run caps are 45uF but the cover schematic lists them as 30uF. The ones I ordered are 45uF.

[Jbcant]

I have a 2004 suncruiser and the ac was working at the campground drove home and now the ac does not work. I can hear both compressors kick on and the exterior fan works but the interior fan (blower) does not work and after a brief period the unit will shut down. Could this be due to a capacitor and can you get to these capacitors without pulling the unit? Thanks

[BobC]

Originally Posted by Jbcant

I have a 2004 suncruiser and the ac was working at the campground drove home and now the ac does not work. I can hear both compressors kick on and the exterior fan works but the interior fan (blower) does not work and after a brief period the unit will shut down. Could this be due to a capacitor and can you get to these capacitors without pulling the unit? Thanks

Rather than jump to conclusions, you'll be best served by following the troubleshooting steps in the service manual, which the following link will download:

https://www.irv2.com/forums/attachme...3&d=1546609656

[Jbcant]

Bob, I get a page not found using that link?

[BobC]

Try this:

http://old.rvcomfort.com/pdf_documen...6323_copy8.pdf

[Jbcant]

Thanks Bob, I will confirm model number but this gives me a good starting point.

[BobC]

I think the model number has more to do with the configuration of the duct connections, unit than the rest of the unit, so the troubleshooting section should still be applicable.

[Jbcant]

Thanks for the input Bob. I did go through the troubleshooting guide and it did turn out to be the run capacitor for the internal blower. I replaced it and all runs fine now.

[BobC]

Originally Posted by Jbcant

Thanks for the input Bob. I did go through the troubleshooting guide and it did turn out to be the run capacitor for the internal blower. I replaced it and all runs fine now.

I'm glad I could help.

[Journey cat]

[QUOTE=

Bronze Bearing Grainger Item 2X567
Sealed bearing Grainger 2X897

.[/QUOTE]

Planing for the near future

I received the outer plastic blower wheel 1472=1161 on E Bay $59
The Grainger bearing , actually a DAYTON 2X897 Pillow Block Bearing,Ball,1/2" Bore are E Bay item also , Have not ordered as yet .

What is the , Bronze Bearing Grainger Item 2X567 for ?
Have i missed something ?

[cef2lion]

>What is the , Bronze Bearing Grainger Item 2X567 for ?
>Have i missed something ?

That is the bronze bushing replacing the original bushing. Or you can go with the ball bearing replacement. You need two bushings or two ball bearing replacements. Your call on which way to go. Ball bearing ones are not that much more.

[Journey cat]

Yup ! I did miss something , and thought you purchased both .
As I perviously said , Ill go with the Bearings .

[Hubb23]

This may be a silly question, but is it possible for only one of my ac compressors to be running? I have an 02 Itasca with basement air and it has really struggled to keep up some days this summer. I noticed during our last trip that I have 2 breakers for compressors. I could hear the unit quit when I flipped 1 off but the other breaker seemed to do nothing. I'm wondering if I have a startup capacitor issue for the other compressor. What do you guys think? Any input would be appreciated.

[Journey cat]

Answer to your question is YES
You can run the A/C on just one .
You may be correct as in the extremsof heat you will benifit with both .
But in cases of not having proper electric available and amps run high you can turn one off .
Have that checked I believe your on track

[BobC]

It could be normal, depending on how you're powered at the time, especially if you're on 30A or less shore power. 50A shore power or 50A generator power should be OK.
Otherwise, the amp draw may be too great to support both compressors, especially if you're using any other electrical devices.

On the other hand, it could be a capacitor or other malfunction.

If it persists after eliminating the power issue, my advice is to download the service manual for your unit and follow the troubleshooting chart. The "shotgun" approach can easily lead you down the wrong path.

[Jbcant]

Another possibility is that the duct from the basement unit to the roof has separated in the rear of the unit. This is known to happen. But it sounds like one of your compressors is not operating.