Electrical Management System - "The Brain"

[MacStreamer]

Greeting,
We have a 1998 28' Excella. Just wondering if anyone knows any thing about the
"Electrical Management System" w/ smart surge made by Progressive Industries.
We are having issues with it. I am not sure if the "brain" came installed from the
factory or if the previous owner installed it. In other words, for al I know all trailers
have this in them. =P It is located in the very back overhead compartments over
one of our twin beds. My husband calls it "The Brain" because it is deciding when
we should have power or not.

Our problem we are having is that it shuts every thing down when we try to turn on
the AC. No matter if we try to hook up power here at home or at a camp site, when we
turn on the AC the "brain" shuts it all down. Before it shuts it all down and after it flashed
the same code. 120 0A 60H EO

EO on the side chart says that is "Normal". No other error codes pop up.
You would think after it shuts down it would flash one of the error codes.

But, we can, just turn this "brain" off, and the AC works just fine. We have no
book for it and are not sure if it is even anything we need..

So again we can turn the "brain" off and use the AC. But are wondering if that
is a good idea. And if so, what might we do to fix it from tripping everything off.

I tried searching the forums but can't seem to find any info on out issue.


Have a great night!

Dana

[azflycaster]

I googled and found this:
http://www.viprv.com/ems/HW50COperation_InstallPDF.pdf
It might help. Based on what the unit is supposed to do, I would guess that the Air Conditioner is pulling the input voltage down below a safe level and the "Brain" is reacting to this condition. If your unit is the same as the one in the link, you should be able to pull the previous error code to determine the fault.

[2airishuman]

progressive industries has made 'intelligent' surge protectors for a good while.

a/s has never used them as oem gear, so a dealer OR owner installed it.

go to their website and contact them for tech support.

IF the protector is hardwired disconnecting it takes more effort, but

that is exactly what i'd do, disconnect it.

buy/use a simple voltage meter and watch what happens to the voltage WHEN the a/c kicks on...

u may need to have an rv tech disconnect and rewire without the "brain" but very likely the unit is the issue and it's out of warranty...

cheers
2air'

[richinny]

or it could be working and there is a poor connection somewhere.

check those voltages!

[MacStreamer]

Thanks all,
Heading out now to test it with a "simple voltage meter". I also found their contact info
on the link to the PDF Richard posted, so we might give them a call today.

Thanks again! =) Dana

[davidz71]

Originally Posted by MacStreamer

...Our problem we are having is that it shuts every thing down when we try to turn on
the AC. No matter if we try to hook up power here at home or at a camp site, when we
turn on the AC the "brain" shuts it all down....
Dana

I sure hope your connection at home is to a 30 amp circuit rather than using a dogbone adapter to a 15 amp house receptacle. What condition is your 30 amp RV plug in? Are any blades in the RV plug head loose?

[MacStreamer]

Craig, We are using a heavy duty electrical cord here at home. But it also happens at camp sites where we plug into. One time when we first got there it tripped it even though we only turned on one light. So we ran our power to the site next to us, a family member's site, and it worked fine. It seems to trip with we are not getting enough power. When you say blades, do you mean the prongs? I will check in the morning.

The error chart is below. When the AC is not turned on the Code is showing E0 "Normal condition". And when we turn on the AC and it trips it all off it still shows "E0". I would think when it trips it would show a different code the E0. I was going to call them tomorrow. Monday.

ErrorCodeChart
E-0--Normal condition
E-1--Reversepolaritycondition(hot andneutral wiresreversed)
E-2--OpenGround(nogroundwireconnection)
E-3--Line1VoltageHigh(line1voltageabove132)
E-4--Line1VoltageLow(line1voltagebelow104)
E-5--Line2VoltageHigh(line2voltageabove132)
E-6--Line2VoltageLow(line2voltagebelow104)
E-7--LineFrequencyHigh(linefrequencyabove69cyclespersec ond)
E-8--LineFrequencyLow(linefrequencybelow51cyclesperseco nd)
E-9--DataLinkDown(remotedisplaynot gettinginformation)
E-10 Replacethesurgeprotectormodule

=) Thanks for the suggestions.
Dana

[davidz71]

Originally Posted by MacStreamer

Craig, We are using a heavy duty electrical cord here at home. But it also happens at camp sites where we plug into. One time when we first got there it tripped it even though we only turned on one light. So we ran our power to the site next to us, a family member's site, and it worked fine. It seems to trip with we are not getting enough power. When you say blades, do you mean the prongs? I will check in the morning.
Dana

Dana,
Yes, you should have 2 blades and a round prong in the 30 amp RV power head. I had a problem with a short in the plug head of my '77 Excella that drove me crazy. Sometimes it worked fine and at other times it didn't. I replaced the plug and had no further problem.