My Basement AC Control Board Failed! - Page 2 - Luxury Coach Lifestyles
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Old 04-25-2011, 10:58 AM   #11
RussWhite
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I would be interested in having a spare SCS A/C board. So, anyone deciding to purhase new from Newell might want to contact me as I will help by buying your old non-working board. Maybe I could fix it and have my spare. Thanks, Russ
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Old 04-25-2011, 10:34 PM   #12
Richard and Rhonda
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Tuga,

The control boxes are the little silver boxes that contain the circuit boards. There are connections in those boxes that connect to the incoming AC power and to the outgoing AC power to the compressors and fan motors.

It is my theory, based on the loose connections I found and reported by others, that the chronic burnout of compressors in the basement units is partly caused by the loose power connections to the compressor. Loose connections drops voltage, amperage goes up, motor burns up.
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Old 04-26-2011, 01:15 AM   #13
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Can you say "ROOF TOP"
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Old 04-26-2011, 04:31 AM   #14
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Matt, I'm just sayin'.....
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Old 04-26-2011, 01:32 PM   #15
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I have Roof Top Air Conditioning units and they are not immune. I have found the connections at the circuit breakers loose. After we got our coach I went through the switch panel and found loose connections at more than one circuit breaker for other circuits as well.
It is my opinion that the heat and vibration from years of service can cause loose connections. I now simply go through the switch panel and tighten all connections, WITH THE SHORE POWER OFF!
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Old 04-26-2011, 09:00 PM   #16
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Quote:
Originally Posted by prairieschooner View Post
I have Roof Top Air Conditioning units and they are not immune. I have found the connections at the circuit breakers loose. After we got our coach I went through the switch panel and found loose connections at more than one circuit breaker for other circuits as well.
It is my opinion that the heat and vibration from years of service can cause loose connections. I now simply go through the switch panel and tighten all connections, WITH THE SHORE POWER OFF!
For those of us who have inverters; remember to turn off the INVERTER also.

Be Safe!
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Old 04-27-2011, 02:50 AM   #17
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Actually Tuga you are absolutely correct!!!
When I first starting working on the electrical system I found the \AC switch panel energized??? after some serious probing with a volt meter I found that the HEART power inverter was supplying power to the AC system???
What I did to correct the problem was limit the circuits that the inverter would supply (Television in the Saloon, Outlet at the Co-Pilot's Seat and the Microwave Oven) I then added a selector switch so that these circuits could be disconnected, this is common on yachts and referred to as a Source Isolation Switch. Without a Source Isolation Switch the AC Electrical Overload Branch Circuit Switch Panel would be Energized!!!
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2007 Yukon, 1981 CJ7 Laredo, 2002 Honda CRV, 1955 Thunderbird, 1952 Pontiac Sedan Delivery, 1952 Ford 8N, 1958 Airstream, 1959 Glasspar 16' Avalon, Cabin in the Woods........what will I work on next
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Old 04-07-2013, 06:54 PM   #18
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SCS-Victory RV & Truck Climate Control Repair Service
Hey guys this is the place that Newell is getting the boards rebuilt from, I contacted them a couple of years ago as I have the same scs ac in my Navigator to rebuild my board Long story short they told me that Newell contacted them and had them rebuild all the old boards they had saved over the years . So all you have to do is send in your old board and they send you a rebuilt board , so far so good for my circuit board but now I think my low side compresor is low on freon as it comes on and everything works but no cold air , Im going to pull the unit out and see if I have a freon leak . Eric
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Old 04-07-2013, 07:05 PM   #19
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Quote:
Originally Posted by rush1 View Post
SCS-Victory RV & Truck Climate Control Repair Service
Hey guys this is the place that Newell is getting the boards rebuilt from, I contacted them a couple of years ago as I have the same scs ac in my Navigator to rebuild my board Long story short they told me that Newell contacted them and had them rebuild all the old boards they had saved over the years . So all you have to do is send in your old board and they send you a rebuilt board , so far so good for my circuit board but now I think my low side compresor is low on freon as it comes on and everything works but no cold air , Im going to pull the unit out and see if I have a freon leak . Eric

Great information Eric I went ahead and posted the information from their website and to be honest their prices aren't bad at all.

Sean

[h=1]SCS-Victory RV & Truck Climate Control Repair Service[/h]


Flight Systems offers repair services for both new Victory and obsolete SCS and SCSFrigette RV & Truck climate control boards.
These systems are used on Newell coaches and many tractor-trailers. Each board is cleaned, repaired, fully tested and comes with a one-year parts and labor warranty.




[TABLE="align: center"]
<tbody>[TR]
[TD="width: 93, align: center"]OEM Part #[/TD]
[TD="width: 240, align: center"]DESCRIPTION[/TD]
[TD="width: 104, align: center"]REBUILD SVC. Factory Direct Price[/TD]
[/TR]
[TR]
[TD="width: 93, align: center"]305-2547[/TD]
[TD="width: 240, align: center"]CLIMATE CONTROL[/TD]
[TD="width: 104, align: center"]85.00[/TD]
[/TR]
[TR]
[TD="align: center"]305-2548[/TD]
[TD="align: center"]CLIMATE CONTROL[/TD]
[TD="align: center"]85.00[/TD]
[/TR]
</tbody>[/TABLE]
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Old 04-22-2013, 02:37 PM   #20
jdaniel
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I've never had any problems but now I'd like to check the connections and probably buy a spare. Where would I find the boards on my 91 and how many are there? I have 4 stations in the coach where I can control the a/c.
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