Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 05-04-2013, 11:59 PM   #1
Moderator Emeritus
 
Doug's Avatar
 
Join Date: Oct 2012
Location: Cincinnati, Ohio
Posts: 4,761
Help 12 Volt Issue - Confused as To Cause

Hey Guys,
Come back from dinner tonight and wanted to get hooked up to pull out early.
Didn't unplug the 11V and did not connect the TT 12 to the TV.

All a sudden, the propane alarm started sounding.
One of the 12V lights was on and I thought it was exhaust from TV setting off alarm.

I opened door to let in fresh air and turned vehicle off.

I noticed the light was dim.

We turned the 12V light off and the alarm went off.

Turn the lights on and they are dim and it's like it pulls too much current and the propane alarm goes off.

The HW tank is turned off and the propane is turned off.

I noticed a day or so ago the frigerator started giving me a "C" instead of light only on AC

I read the manual and it says that code says refrigerator not getting enough 12V supply. Check charging system etc.

I checked the breakers, all are on.

I checked all the 12V fuses and they seem good. I didn't pull them, I just checked using my probes on the back contacts on the flat auto fuses.

Everything seems to be ok.

The LED lights look normal, but the 12V incandescent lights are all dim. If you leave lights on, alarm will ultimately come on.

All 12V lights are dim.

All 120V circuits seem to be working.

Any ideas on what to check from here? Battery terminals are tight.

Best regards,
Doug
__________________

__________________

Southwest, Ohio
2016 Toyota Tundra SR5, 5.7 V8
2017 Jayco 24RBS
Doug is offline   Reply With Quote
Old 05-05-2013, 12:18 AM   #2
Moderator Emeritus
 
Doug's Avatar
 
Join Date: Oct 2012
Location: Cincinnati, Ohio
Posts: 4,761
I checked the charge on my TT battery. It's only at 5.5V?
Seems like the 12V side of the converter is not working?

The PO put in a new IOTA IDP-30 converter in prior to my purchase.

I unplugged 110V to TT and plugged into TV.
The running lights all look good.

Think I can pull 2 hours tomorrow until I can get to somewhere to better understand it?

They have high wind warnings tomorrow and I need to get 2 hours North. I'll be there 5 days and can followup.

Doug
__________________

__________________

Southwest, Ohio
2016 Toyota Tundra SR5, 5.7 V8
2017 Jayco 24RBS
Doug is offline   Reply With Quote
Old 05-05-2013, 12:42 AM   #3
Moderator Emeritus
 
Doug's Avatar
 
Join Date: Oct 2012
Location: Cincinnati, Ohio
Posts: 4,761
If I drop the ground wire off the battery, none of my 12V lights inside work at all.
Seems like the 12V side of the converter is not working.
I pulled all the 12V fuses and they are all good.

Shouldn't the converter run the 12 volt lights with the battery disconnected?

Doug
__________________

Southwest, Ohio
2016 Toyota Tundra SR5, 5.7 V8
2017 Jayco 24RBS
Doug is offline   Reply With Quote
Old 05-05-2013, 04:11 AM   #4
Senior Member
 
Mustang65's Avatar
 
Join Date: Nov 2012
Location: Clearwater, FL area
Posts: 3,671
I would check the 12 volt connetion (pos + neg) at the controller. One of the connections may have come loose. Also, pull all the fuses and do a voltage check on the converter, there may be a short on one of the 12volt ckts. If you have 12 volts with the fuses pulled, check each circuit for a short. Plug in one fuse at a time, and check the voltage after you plug in each fuse. Should isolate a bad ckt.
Don
__________________
2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package

Our Solar Album https://www.jaycoowners.com/album.php?albumid=329
Mustang65 is offline   Reply With Quote
Old 05-05-2013, 04:47 AM   #5
Senior Member
 
lx22f/c's Avatar
 
Join Date: Feb 2012
Location: Friendswood
Posts: 917
Help 12 Volt Issue - Confused as To Cause

Quote:
Originally Posted by dougtoms01 View Post
If I drop the ground wire off the battery, none of my 12V lights inside work at all.
Seems like the 12V side of the converter is not working.
I pulled all the 12V fuses and they are all good.

Shouldn't the converter run the 12 volt lights with the battery disconnected?

Doug
Yes, your lights and everything should still work when plugged into shorepower and no battery hook up. When you hook up tow vehicle you should see battery voltage start to come up. It may be a bad battery that is not excepting the charge. If voltage comes up and after plugging in ti tv then either converter problem or wiring issue at converter.
You mentioned pv replaced converter so you may start there.
lx22f/c is offline   Reply With Quote
Old 05-05-2013, 05:26 AM   #6
Senior Member
 
tnchuck100's Avatar
 
Join Date: Jun 2012
Location: Sparta, TN
Posts: 1,174
If, as you state, all the fuses are OK then there is definitely a problem with the converter. Forget trying to find a short on one of the circuits. That would have blown the associated circuits fuse. The propane detector will alarm when the voltage gets too low. Yes, as lx says, the converter (and the 12V system) will work without a battery.
__________________
Chuck - Sparta, TN
2012 Jay Flight 22FB, 2 x Honda EU2000i
2013 GMC Yukon XL Denali AWD

EDUCATION is what you get when you read the fine print.....
EXPERIENCE is what you get when you don't.
tnchuck100 is offline   Reply With Quote
Old 05-05-2013, 07:38 AM   #7
Senior Member
 
bed685's Avatar
 
Join Date: Feb 2012
Location: St. Louis, MO
Posts: 151
I had a similar problem last year and had to replace the converter and battery. I learned my lesson and put the battery charger in the TT as a back up to the converter. I set it to trickle charge while we camped. The good part is I have a new battery and converter. I shouldn't have this problem for some time, bad news, The converter, battery, and charger set me back about $$$ while on vacation. Going through this gave me a better understanding of how the 12 volt and 110 system work together. Low voltage will set of your propane alarm and LED lights draw way less current than regular bulbs so it makes sense that they would still work (until your system is completely drained). Good luck with your repairs.
__________________
2007 Jayfeather 29X
2000 Ford Excursion V10
bed685 is offline   Reply With Quote
Old 05-05-2013, 07:40 AM   #8
Senior Member
 
RoyBraddy's Avatar
 
Join Date: Sep 2011
Location: King George
Posts: 2,396
Doug

You do have a dc multimeter with you right?...

Here is simplified block diagram of your 30AMP trailer. Note the Battery and the converter/charger both feed the DC POWER DISTRIBUTION panel where all of your 12VDC fuses are.


Im thinking you have blown fuses between the battery and the power distribution center. One fuse is in-line and real close to the battery terminals. A second set of fuses in this leg is at the Power Distribution Center labeled REVERSE POLARITY. Tose three fuses can disrupt the 12VDC from getting from the battery to the power distribution center.

One thing that might blow these fuses is the battery is going bad and drawing alot of current when you try to re-charge it using the converter thus blowing the fuses. Another reason might be you have pulled the battery terminals and got them reversed when you hooked them back up which is easy to do. Need to grab the NEG terminal cable that comes from FRAME GROUND and make sure it is going to the BATTERY TERMINAL that is marked on the battery case "NEG" or the stamped symbol "-".

It sounds like your battery is not being charged... The battery by itself (one terminal disconnected) should read 12.5-6VDC. If you turn on the converter/charger unit this voltage should jump to 13.6VDC at the battery terminal. Obviously this isn't happening since your ceiling lights don't come on with only the battery hooked up. If the battery isn't connected to the 12VDC grid then the converter/charger unit is NOT charging the battery as well...

To check the converter unit just plug the trailer into shore power and you should read 13.6VDC at the converter/charger large cable connections at all times. If the battery connections were good (no blown fuses or bad physical battery terminal connection) this 13.6VDC would be read at the battery terminals.

May be long trip back without DC power...

Of course you might also think about the 12VDC being lost at this time it is unsafe towing your trailer as it requires battery to operate your trailer electric brakes in case of break-away connection between the trailer and the Van when going down the road. Its a DOT law actually to have a good working battery during towing... You could afford the fine I suspect but they will also not allow the trailer to be towed on the public highway without a working battery on-board the trailer setup...

Trips are fun huh haha... Got to have a whole bag full of PLAN Bs when on a long trip

just my thoughts
Roy Ken
__________________
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
RoyBraddy is offline   Reply With Quote
Old 05-05-2013, 07:50 AM   #9
Senior Member
 
bed685's Avatar
 
Join Date: Feb 2012
Location: St. Louis, MO
Posts: 151
That's a great Diagram, Roy.
__________________
2007 Jayfeather 29X
2000 Ford Excursion V10
bed685 is offline   Reply With Quote
Old 05-05-2013, 08:08 AM   #10
Senior Member
 
RoyBraddy's Avatar
 
Join Date: Sep 2011
Location: King George
Posts: 2,396
5.5VDC is usually what I read when a battery has a shorted cell. Pop the battery vents and I bet you will find one that has NO FLUIDS in it. You will probably also find the battery case rather warm if you held your hand on it when trying to charger it from converter. Since you are seeing DIM lights this almost says the fuses are good between the battery and the power distribution center. The main thing to check now is the 12VDC output coming from the converter/charger unit. Should read 13.6VDC when the converter is on 120VAC.. If your ceiling light are bright when the converter is on and the battery is disconnected then this will tell you the converter/charger is probabaly working ok. Its best to measure the DC VOLTs to be sure you are seeing 13.6VDC however.

Most LEDS lights will work with a range or 7-30VDC but the automotive incandescent bulbs will need a full 12VDC to be bright. Each automotive incandescent bulb will draw around 1AMP of 12VDC power. If you turn on all of your automotive ceiling light this be as much as 10-12AMPS being drawn from the batteries. Each LEDs light only draws around .2 AMPS from the 12VDC side for the same amount of light. This is pretty big saving of energy (Thus the reason we all want to have them installed).

If you have to order a new converter and cant find one locally keep in mind AMAZON has a two day deliver free shipping and will ship over night if pay for it. IOTA and PD4600 SMART MODE TECHNOLOGY series are both good brands to get. I would probably go for the 45AMP smart mode models just in case you want to install two batteries later on. Installing two 6VDC Golf Cart batteries ($80 each at COSTCO or SAMs CLUB) in series would be my choice for your smaller trailer. Being stranded on the road however I would just pickup a WALMART special deep cycle GP24 12VDC 85AH battery

Where are you guys at now.

Just my thoughts
Roy Ken
__________________

__________________
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
RoyBraddy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 11:27 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.