Author Topic: Charging system  (Read 594 times)

LaMonte Monnell

  • BAC Member
  • *
  • Posts: 552
  • Thanked: 158 times
Charging system
« on: January 19, 2021, 03:16:34 PM »
I am having issues with my charging system on our 2001 Contessa.

In the past my batteries would charge to 13.4 volts, now I get some low readings on the chassis batteries.

When the monitor shows that they are low, when turning the charger to on I am getting all three warning lights blinking every few seconds on the Prosine control panel.

When reading the CMP II when I turn the prosine on to charge batteries the voltage levels go back to a good 13.1 reading. Once I turn the prosine off the battery voltages drop back down.

Where should I LOOK FIRST.
Lamonte & Patti Monnell
2001 Beaver Contessa Naples DP 40' 2 slides
CAT 3126B
2012 Cadillac SRX

Weeki Wachee,Fl

Frank Bergamo

  • BAC Member
  • *
  • Posts: 163
  • Thanked: 34 times
Re: Charging system
« Reply #1 on: January 19, 2021, 04:13:05 PM »
LaMonte,

Have you checked the batteries? Are they full of water? Then do a load test on each battery to confirm they are good. Hope this helps.
Frank & Paulette Bergamo
2019-       : 2007 Marquis Topaz IV  C-15 600 HP Allison 4000
2014-2019: 2002 Marquis Emerald C-12 505 HP Allison 4000
2004-2014: 1986 Executive Diplomat 3208 250 HP Allison MT-643
Grand Junction, CO.

Eric Maclean

  • BAC Member
  • *
  • Posts: 402
  • Thanked: 161 times
  • Karen and I would like to wish you all happy trail
Re: Charging system
« Reply #2 on: January 19, 2021, 04:49:50 PM »
LaMonte

As Frank said check your batteries for electralyte level and do a load test on each individually also check for corrosion at any connections which could be causing your problem .
Take voltage readings at either end of the inverter cables ( at the batteries and at the inverter ) . Also check to see if the voltages are reaching the chassis's battery bank you may be experiencing a problem with your echo charger or one of the fuses at the echo charger.
Or it could be as simple as bad batteries the load tests with confirm that.
Good luck Eric
« Last Edit: January 19, 2021, 04:54:59 PM by Eric Maclean »
1997 Patriot Yorktown
3126-B
2009 Chevy HHR
Roadmaster falcon tow bar
Demco Air Force one tow brake.

LaMonte Monnell

  • BAC Member
  • *
  • Posts: 552
  • Thanked: 158 times
Re: Charging system
« Reply #3 on: January 19, 2021, 04:56:24 PM »
Checked the four house batteries, they are all at 6.3 v

Two chassis batteries are at 12.7 v

I check the water levels a lot, they are good.

All 6 batteries are just a few months old.

I'm going to pull the prosine control out and check wires there. (only one phone cable on the back , unplugged it and replugged and went through a system check, seems fine)

I replaced the echo charger a month ago thinking that was the issue, no change doing that.

Could the sequencer controller  have anything to do with that issue. I have a new one but didnt change that yet,...
« Last Edit: January 19, 2021, 06:01:59 PM by LaMonte Monnell »
Lamonte & Patti Monnell
2001 Beaver Contessa Naples DP 40' 2 slides
CAT 3126B
2012 Cadillac SRX

Weeki Wachee,Fl

David T. Richelderfer

  • David, Leslie & Jasper
  • BAC Member
  • *
  • Posts: 1359
  • Thanked: 392 times
  • 2004 Marquis Sapphire 45, C12 - 505 hp
Re: Charging system
« Reply #4 on: January 19, 2021, 07:34:13 PM »
Fully charged batteries should read about 6.3v and 12.6v, respectively, for 6v and 12v batteries when they are at rest and not being charged.  If you're seeing over 13v on the coach systems' batteries' readout when they are being charged, then what you're seeing is the charging voltage coming from the charger, be that an Echo charger, Big Boy/BIRD charging system, or standalone trickle charger attached to the batteries.

I don't see that you have a problem unless I am misinterpreting your posts.
David, Leslie & Jasper, JoJo
Towing a 2002 black Chevy Avalanche
Using a Blackhawk Towbar & Evenbrake
RF Mogul Eagle 3 for DISH TV
Go Beavers, OSU Class of '71, Math
RVing since 1973
Constitutionalists, Golfers & Capitalists
Your luck is the residue of your management

LaMonte Monnell

  • BAC Member
  • *
  • Posts: 552
  • Thanked: 158 times
Re: Charging system
« Reply #5 on: January 19, 2021, 08:27:09 PM »
David, the only issue I have is that the fault lights flashing and beeping when the charging is on, but the batteries are at the correct voltage.

Everything is correct with the charger on also as far as voltage also.

Just the constant beeping from the fault indicator, and I can't figure out why......
Lamonte & Patti Monnell
2001 Beaver Contessa Naples DP 40' 2 slides
CAT 3126B
2012 Cadillac SRX

Weeki Wachee,Fl

Steve Huber Co-Admin

  • Administrator Group
  • *
  • Posts: 2887
  • Thanked: 2023 times
Re: Charging system
« Reply #6 on: January 20, 2021, 12:16:01 AM »
La Monte,
Have you reset the inverter? The Prosine in my 01 Contessa had a reset switch on the inverter itself.
Steve
Steve
2015-          07 Contessa Bayshore C9,  400 hp
2013-2015: 00 Marquis Tourmaline, C12, 425 hp
2005-2013: 01 Contessa Naples, 3126B, 330 hp

Gene Obie

  • BAC Member
  • *
  • Posts: 53
  • Thanked: 5 times
Re: Charging system
« Reply #7 on: January 20, 2021, 09:38:26 AM »
Have you checked your  AC line voltage coming in, and the low AC voltage setting on your inverter?

I have a different inverter but had a similar problem just the other day. Turns out the inverter was tripping on low VAC coming in. So it would connect to shore power fine (with no load), then once charging started the AC input voltage would dip and it would reset and do it all again. Eventually the batteries charged as they got a bit each time and eventually charge current dropped enough the inverter did not trip...but took me a bit to figure out what was going on.
-Gene

2005 Beaver Marquis, Ruby 40, C-13 Cat 525HP, Allison 4k
Coupeville, WA

Keith Moffett

  • BAC Member
  • *
  • Posts: 1040
  • Thanked: 344 times
  • Every day is a blessing!
Re: Charging system
« Reply #8 on: January 20, 2021, 10:09:37 AM »
Had a similar problem involving  a different inverter but the same CMP 20.  Charger was sensing over load or hot batteries and so would shut down.  The short version was to replace the temp sensor on the batteries.  About $35 and some  elbow grease and doing a complete shut down and restart all power.  The CMP read fine after.
2007 Patriot Thunder
45' C-13
2006 Explorer Ltd.
DW is Carol
Safe travels and
May God bless!

Fred Brooks

  • BAC Member
  • *
  • Posts: 1066
  • Thanked: 533 times
  • RVIA Certified Luxury Technician 49 years, Retired
Re: Charging system
« Reply #9 on: January 20, 2021, 01:09:48 PM »
   LaMonte,
I would do as Steve suggests, slide the "reset " on the side of the Prosine. If you can't access that switch, you can perform a "hard reset" by removing the positive battery cable from the Prosine for 10 minutes. If that does not resolve your issue you may be looking at some internal issue in the Prosine that can't be addressed. Another thought would be to isolate your chassis battery and take that out of the Echo charger loop while diagnosing your issue. Fred
Fred & Cindy Brooks
2000 Marquis, Jasper
C-12 Wild Cat (U of A)
2014 Honda CRV
Proverbs 3: 5 & 6