• Water leaks
  Forum: Exterior
  Last Post: PMCBR
  5 hours ago
  » Replies: 10
  » Views: 161
• Waste tank leak. Epoxy, p...
  Forum: Plumbing and fixtures
  Last Post: arcticdude
  8 hours ago
  » Replies: 5
  » Views: 105
• SCS A/C removal
  Forum: Air Conditioning
  Last Post: whited44
  11 hours ago
  » Replies: 11
  » Views: 7,329
• Spare condenser needed
  Forum: Air Conditioning
  Last Post: johnkosir
  Today, 08:39 AM
  » Replies: 8
  » Views: 318
• Larry Brachfeld
  Forum: Tributes to our Friends
  Last Post: encantotom
  Yesterday, 06:40 PM
  » Replies: 1
  » Views: 98
• A/C resistor for dash AC ...
  Forum: Air Conditioning
  Last Post: jdkskyking
  Yesterday, 02:10 PM
  » Replies: 7
  » Views: 777
• SCS A/C 1301 fan motor sw...
  Forum: Air Conditioning
  Last Post: Richard
  07-06-2025, 05:13 PM
  » Replies: 56
  » Views: 3,038
• Mini Split On A Cruise Ai...
  Forum: Air Conditioning
  Last Post: Jack Houpe
  07-06-2025, 03:04 AM
  » Replies: 23
  » Views: 7,224
• Looking for a Late 90's C...
  Forum: Coaches for Sale (Please read the info in the Category description)
  Last Post: Cuure
  07-05-2025, 02:45 PM
  » Replies: 22
  » Views: 6,880
• AC HI/LO on condenser and...
  Forum: Air Conditioning
  Last Post: pairodice
  07-02-2025, 12:04 PM
  » Replies: 7
  » Views: 392

• Forum posts:67,909
• Forum threads:8,081
• Members:3,940
• Latest member:ShawnGring

Does anyone know how to change and where to get bulbs for those aviation style post lights on the switch panels? I have a 1995.
Thanks,
Bill

I have read other threads about different thoughts about charging an SCS basement unit. Of course this doesn't need to be done unless you break into the system or have a leak. 

Method one is to charge to the weight listed on the literature. That would be 36 ounces R 22

Method two is to charge to the amperage curve listed in the SCS literature. Rheavn was kind enough to post the literature on the forum.

Now that I have been into the innards of my SCS unit to replace a compressor, I believe there is a third way, and perhaps the best way to charge the system. The system is designed with a thermal expansion valve in each loop. In today's world of high efficiency AC units most home AC's are now using thermal expansion valves (called TXV or TEV for short). The accepted practice today is to measure the supercool of the unit and charge to achieve the appropriate supercool. 

This method requires that the temperature of the line just before the TXV is accurately measured. That temperature is compared to the saturation temp of the refrigerant at the high side pressure. The difference is supercool. I set the unit up for 8 degrees of supercool. It is . blowing 60 degree air to the bedroom.  The reason I post this is that the charge weight used to achieve this result is not the listed charge weight, and the amperage is also different. So, none of the three methods agree. 

Not to be an AC lesson, but let me take a simplified explanation of supercool . Let's use water as the make believe refrigerant. If the system were open, most would agree water will boil at 212 degrees. If we close the system and raise the pressure, most would understand the boiling point goes up. That relationship between boiling point and pressure is know as the saturation temperature. 
Stay with me on this simple explanation. Let's say that the pressure on the high side of our water system is 15 psi (atmospheric pressure) so water would naturally boil at 212. But we measure the temperature of the water coming out of the compressor and it's actually 206 degrees. You would have 6 degrees of supercool. 

I go through all this because the old school method of simply looking at the gauges on a system with a TXV simply does not result in the optimal charge for that type of system. I have read the other posts and the dissatisfaction that folks have had with results. The good news is that any decently skilled AC tech should know how to charge a TXV system. Because the TXV automatically regulates the low side pressure, it makes it impossible to get the very best charge just by using gauges only. 

My purpose in the post was to arm you with the right question to ask if someone is working on your SCS unit. How many degrees of supercool is the unit running? 

Hi Guys,

hope someone can help with this one. Cranked the coach the other day & the touch panel to level the coach only had the "travel mode" light on. I pushed the level

button & all the lights came on. Air pressure stays up but will not level or raise the coach.

After talking to HWH i sent my old touch panel in for a rebuild. I also ordered a new touch panel. After checking the continuity of the 8 wire cable to the control box &

pulling & checking all the fuses i could find that pertains to the leveling system & installing the new panel......still had the problem.

The only thing that turns off all the panel lights except for the travel light is when i pull on & off the parking air brake lever.

thanks

Newell Coach 1999 # 527. have owned for seven years.

If you have a system with an engine charging system with an external voltage regulator this document will help you identify what is causing your problem.  Simple testing if you are familiar with the use of common volt meters.

The 7" Garmin with lifetime map and traffic updates, customized RV Routing and RV Parks & Services Directory on sale at GPS City THIS WEEKEND ONLY for $289.95 regular $399.99.

http://www.gpscity.com/garmin-rv-760lmt.html

http://www.rvt.com/Newell-2000i-2005-Lew...97-UX94550

Nice looking coach with 93,467 miles.

$317,780

Hi gurus,

Just finished 3226 miles in our classic 1972 and she ran beautifully!  Sadly it looks like I have a leaky head gasket in my Detroit 8.2 since I'm getting tiny bubbles in my coolant.  My brother in law is a diesel mechanic and suggests that if I want piece of mind I swap engines.  He suggests a Cummins 6bt 5.9L engine.  This seems a little small to me since I have an 8.2L in there right now but space is a problem too.  Originally it had a Ford 391 gasser.

Anyone with any thoughts for engine/transmission combos.  Our 1972 is 32 feet long and weighs about 20,000 lbs. and we tow a 1981 Honda Accord which weighs maybe 3500 with the dolly.

It's either this or new head gaskets.

Thanks!

Hi Gurus!

Here I sit at camp Newell awaiting my HWH pad replacement, and salon slide seal renewal.
Good trip from Knoxville, TN except now I am dripping potable water on Newell's driveway.  They won't notice with all the condensate I am adding too.

Got out the flexible camera probe and can see the water is leaking at the common ( lowest ) sensor for level indication.  There won't be much water left when it stops at that location.

So, anyone plowed this ground before me?  The sensors are somehow through the side of the plastic tank.  There is a nut to hold on the sensor wire, and then another nut.  I have never attempted to remove a sensor and don't even know if it is possible.

I imagine bonding anything to stop the leak on the outside of the tank is going to be a challenge to stick to the plastic.

All thoughts appreciated.

Thanks,    Russ

http://www.rvtrader.com/listing/2001-New...-114984430

    LWas getting on the interstate about 1/2 mile from the house when I heard bang crash ..the drive train let go.. Was on the on ramp at approximately 5 mph.. U joint and yoke that connects to tranny let go dropped drive shaft.. At that speed didn't do any additional damage. Unhooked stacker drug it back home. Waiting on a tow truck to tow me. Called blue sky insurance asked where I needed towed to I said about 300 yards to the ken worth diesel shop.  Guy said no problem your tow insurance is good for 1500$. Here is the good part. I had an appointment at Newell Monday morni g already to get the u joints and other stuff looked at..  Gave the insurance company Newells address said I really rather be towed there. Guy just called me back said that is 152 miles and would be covered fully under your towing coverage.. Tow truck on the way from Joplin right now to van Buren ark to get me.. Don't even have to burn the fuel to get Newell.. Lol

Love Blue Sky..