On Tuesday, August 8, 2017 at 5:42:59 PM UTC-4, Mr. Luddite wrote:
On 8/8/2017 4:13 PM, justan wrote:
"Mr. Luddite" Wrote in message:

An elderly friend has a 2013 Keystone Cougar fifth wheel that he and his
wife snowbird to Florida in during the winter. When he came back this
year the main control panel that controls slides, lights, displays
fresh, grey and black water levels, etc. stopped working. Doesn't even
light up like it's supposed to. He asked me if I had any ideas and,
being the friendly, helpful sort I offered to see if I could find the
problem.

Not that simple. For a couple of years Keystone made these panels using
a membrane type switch panel that transmits wirelessly to a "brain" in
one of the forward compartments. Worse, there are no manuals, wiring
diagrams or schematics for the system. Worse yet, they had so many
problems with this system that they no longer make it or support it.
Checked a few places on the Internet in hopes of finding some kind of
documentation and all I found was horror story after horror story of
people with this system. Some failed shortly after they bought the
fifth wheel and never worked again.

I realized it was wireless while checking some voltages. When I checked
in the area of the "brain" my digital meter would initially read
12.something volts but then start slowly climbing to as high as 18
volts. I thought the meter was bad but when checking voltages at the
other end of the fifth wheel where the control panel is, the readings
were rock solid. Then I noticed a strange wire going nowhere that came
out of the "brain" and realized it was an antenna. The whole system
operates wirelessly and my meter was being affected by the RF noise.

The manufacturer of the wireless system is of no help either. No
diagrams available, no schematics, no replacement PC boards (everything
is surface mount). They basically have disowned anything to do with
this system.

My friend contacted a third party supplier who said they can send a
"kit" to replace the main control panel - no wireing diagrams though and
but will not guarantee it will work and no returns. The kit is $500.

I wish I never offered to help him. Now I own the damn problem.

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Googled
it and came up with dead battery in remote. Also says it
wont work if you stray from front of 5th wheel.
There seems to be a lot of buzz about this problem on the internet.


Yeah, I found the thing about the batteries in the remote and how to
reset the whole system. Put new batteries in it and did the reset
procedure. No luck. Still no power on the control panel. I pulled the
panel out and checked the input voltage. It comes in on four pairs of
terminals and they all read 12.4 volts. There's a PC board in the panel
with a bunch of relays, logic chips and diodes on it. Everything is
double surface mount, so not designed to be worked on ... only replace
the whole board (which isn't made anymore).

The slides work with the remote, so that's most important as well as
some of the interior lights. There's a few more lights and the
redundant slide controls plus the input sensors from the three tanks so
the panel not working doesn't prevent them from using the rig.

Without any wiring diagrams, schematics or documentation of any kind
it's really Easter Egging as far as trying to troubleshoot.

I'm lucky. My slides, landing gear etc operate from individual switches. The tank lights show up on the 'display', but they've not worked since we got the rig anyway. That is a pretty common problem. I thought about searching for manuals, but it sounds like you,et al, have done all the searching that's to be done. He might try calling an RV 'junk yard' like one of those below to see if they might have it.

Johnson's Surplus
White Pigeon, MI • (269) 483-2249

Bontrager's Surplus Inc
White Pigeon, MI • (269) 483-7017

Wish him luck. Right now I'm soaking my hot water tank to remove a 'rotten egg' smell that I picked up at some campground. The book called for a solution of 4 parts vinegar to 2 parts water. But, it didn't say how much of the solution to make. Called the factory. Answer...make as much as the heater holds. So right now it's got 4 gallons of vinegar and 2 gallons of water in it. It needs to run for about 8 hours, and then get rinsed.

Hey, the camping life is rough!