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04-01-2015, 10:12 AM
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#1
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Junior Member
Join Date: Apr 2015
Posts: 8
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Flaky 12v service
I have a 2012 Puma Palomino TT and have an issue with 12v electrical. Upon opening up the unit the slideouts opened normally and the weather was cold around 35 degrees or so. Last weekend, 2-weeks after opening the unit, I turned on a light switch and the low voltage beeping came on, the light was dim and so were all the other lights. It was like being in a brown out condition at the extreme. This is all while hooked up to shore power and the battery in place. I tried it with battery removed and still on shore power and condition was same…dim so it isn’t a bad battery correct? 12v battery isn’t necessary to run 12v devices as long as Im on shore power correct? Shore power and battery in place is how it has been throughout winter as I’m at a seasonal campground. Yesterday I returned with a multimeter to check voltages but for grins, first thing I did was flip a light switch. The light was bright. I continued throughout the TT and all lights worked, bathroom fan and microwave worked, all 12v devices worked normally. My question is: Why low current to 12v 3 days ago and then normal now? Converter issue? Battery?
Thanks in advance!
Jeff
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04-01-2015, 10:15 AM
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#2
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Converter may be on its way out.
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 10:18 AM
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#3
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Turn on all the 12v items you can, you should hear the fan running in the converter.
If not the fan "common issue" is junk and the converter is over heating.
I'm assuming a wfco converter?
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 10:21 AM
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#4
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Senior Member
Join Date: Dec 2012
Posts: 7,652
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You said you tried only the 12 volt items the first time around. Could your shore power connection have been at fault for awhile and was ok when you returned?
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04-01-2015, 10:26 AM
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#5
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Junior Member
Join Date: Apr 2015
Posts: 8
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Will do thanks! Parallax Converter.
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04-01-2015, 10:28 AM
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#6
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Junior Member
Join Date: Apr 2015
Posts: 8
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Electrician checked the service box at shore and was normal. Isolated to the RV.
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04-01-2015, 10:29 AM
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#7
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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I've not had to much contact with a parallax but sounds like a similar situation.
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 10:34 AM
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#8
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Junior Member
Join Date: Apr 2015
Posts: 8
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An RV technician is coming out tomorrow night with a converter replacement. Am just trying to avoid what will end up a $500 bill if something is readily evident. If the fan is shot, then I should have him bring just a fan as well. This way the fan just gets replaced, solving what may be just a normal thermal cut-off. Sound logical?
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04-01-2015, 11:35 AM
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#9
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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I believe parallax has a pretty good trouble shooting guide on there website.
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 03:24 PM
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#10
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Junior Member
Join Date: Apr 2015
Posts: 8
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Came out this afternoon and 12v was fine so I turned on almost all lights, fridge and bathroom fan. After 5 minutes, everything dimmed and low power alarm sounded. During this time, the converter fan did not come on. Look like a cooling fan failure? If so, replace just fan or whole converter?
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04-01-2015, 03:26 PM
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#11
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by sky5900
Came out this afternoon and 12v was fine so I turned on almost all lights, fridge and bathroom fan. After 5 minutes, everything dimmed and low power alarm sounded. During this time, the converter fan did not come on. Look like a cooling fan failure? If so, replace just fan or whole converter?
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I'd replace the unit, Altho I'd highly recommend replacing it with a progressive dynamics converter with pendant.
Jmo of course.
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 03:29 PM
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#12
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by TURBS
I'd replace the unit, Altho I'd highly recommend replacing it with a progressive dynamics converter with pendant.
Jmo of course.TURBS
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But you get a commission from Progressive Dynamics. 
__________________
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04-01-2015, 03:32 PM
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#13
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by OldCoot
But you get a commission from Progressive Dynamics. |
Pretty nice commission to!
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 03:37 PM
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#14
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Senior Member
Join Date: Feb 2015
Posts: 847
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is the battery old?? if its a switch mode style parallax, all its potential is tied to the battery. then the battery could have a shorted cell, effectively making it a 10 volt. that could give you the symptoms you describe. that battery will suck amperage and be hot to the touch...
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04-01-2015, 03:40 PM
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#15
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by Crockett
is the battery old?? if its a switch mode style parallax, all its potential is tied to the battery. then the battery could have a shorted cell, effectively making it a 10 volt. that could give you the symptoms you describe. that battery will suck amperage and be hot to the touch...
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So what does the converter do when not hooked to a battery @ all?
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 04:34 PM
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#16
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Senior Member
Join Date: Feb 2015
Posts: 847
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Quote:
Originally Posted by TURBS
So what does the converter do when not hooked to a battery @ all?
TURBS
08 duramax tuned n modded, 32bhok Sabre
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sorry turbs, I missed that on the OP...brown out with no battery. i gots to get my money back on that evelyn woods speed reading class...got me into more trouble. hey, at least its not one of those ..."YOU SAID" events... 
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04-01-2015, 04:35 PM
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#17
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by Crockett
sorry turbs, I missed that on the OP...brown out with no battery. i gots to get my money back on that evelyn woods speed reading class...got me into more trouble. hey, at least its not one of those ..."YOU SAID" events... |
[emoji12] it's all good!
TURBS
08 duramax tuned n modded, 32bhok Sabre
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04-01-2015, 05:09 PM
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#18
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Senior Member
Join Date: Apr 2014
Location: Gainesville, FL
Posts: 4,556
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Quote:
Originally Posted by TURBS
... with pendant.
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What's a pendant?
Sent from my phone using Tapatalk.
__________________
TV: 2021 Ford F-150 4WD XLT Crew w/ 3.5L EB & HDPP, payload: 2,416#.
RV: 2020 Rockwood Mini-Lite 2507S, Propride 3P hitch w/ 1400# spring bars
Camping nights: 2021, 52; 2022, 99; 2023, 88; 2024, TBD (Est: 80+)
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04-01-2015, 05:20 PM
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#19
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by chriscowles
What's a pendant?
Sent from my phone using Tapatalk.
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http://www.progressivedyn.com/prod_details/pendant.html
TURBS
08 duramax tuned n modded, 32bhok Sabre
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