Community Forums

Phil_Cook · 05-08-2015, 03:49 PM

Has any do it yourselfer charged the driver/passenger air conditioner?
I am trying to find the low pressure fill valve. So far no luck

brobox · 05-08-2015, 03:51 PM

I saw the valve and it's behind the generator door against the firewall if I remember correctly.

Phil_Cook · 05-08-2015, 03:58 PM

Thanks for the info. When I find it for sure I will add it to the post.

hogdriver · 05-08-2015, 05:46 PM

Phil

Call CS and make sure you know how much refrigerant is in your system. I had my 13 Aspire recharged and the Spartan authorized shop couldn't believe the whole system took something like 2.5 lbs and they put in more. When the went to test it would cool for a bit then shutoff. After a few calls to CS they removed some coolant, down to 2.5 lbs, and it worked good. Don't quote me on 2.5 lbs, check.

Phil_Cook · 05-09-2015, 05:09 AM

Thanks Dave for the info. My A/C compressor cycles on and off constantly like it is low on 314

H. Miller · 05-09-2015, 05:23 AM

Most 40'ish foot motorhomes use 4 lbs.

voltdoc · 05-09-2015, 05:49 AM

Quote:

Originally Posted by Venicephil

Thanks Dave for the info. My A/C compressor cycles on and off constantly like it is low on 314

Just had mine repaired for the same symptom, and yes it was low refrigerant. But that will almost always be due to a leak. Mine was easy, a leaking Schrader valve.

I want to say my Aspire needs 3.5 pounds, not sure where I found that info.

Unless you really know what you're doing, if you are under warranty have a pro do it, they have equipment to test for leaks, measure pressures, purge air, dry the system and adjust oil levels. Just dumping a can of refrigerant into a leaky system is probably a waste of time and money.

Only problem I ran into was finding a shop. Three potential warranty providers, Spartan, Entegra & Evans Tempcon. Ended up at Lazy Days and it was fixed quickly.

RL57 · 05-09-2015, 06:07 AM

Mine had a leak in the high side hose. System holds 2.5 lbs.

Cruzer · 05-09-2015, 10:41 AM

Quote:

Originally Posted by H. Miller

Most 40'ish foot motorhomes use 4 lbs.

Our 40' Tiffin on a Freightliner was 2.5 lbs and our 42' Tiffin on a Spartan was 2.5 lbs.

voltdoc · 05-09-2015, 03:29 PM

Here's a chart of levels required for different chassis. On my Aspire the condenser is located in the front on the right side.

Cruzer · 05-09-2015, 03:37 PM

The only problem with using the pounds of refrigerant as your recharge measurement is that the system needs to be empty before you add the required amount or else you'll overcharge it.

You can use a Pressure-Temperature chart for any RV to determine if your system is low or not. A properly charged system, regardless of how many pounds it takes, will have a given static pressure at a given temperature. As the temperature rises, so does the pressure. That's just an artifact of the R134a refrigerant.

For a copy of this chart, as well as some tips on how to recharge, check out the following link:

RV Air Conditioning Service