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Topic: Start battery disconnected--BUT? (Read 491 times) previous topic - next topic

Start battery disconnected--BUT?

I disconnected the start battery by taking the negative (-) cable off the battery.
Now the dash monitor reads 6.7, 6.5, 6.7, 6.6, etc.
So where is the voltage coming from?
Except for the cig plug-in digital readout (reads just like above) with two USB charge ports everything else engine/chassis is "dead".
Also, the 30A plug-in to the house is disconnected.
If I turn the salesman switch to "OFF' then everything is dead.
Strange.
Also, if 30A is connected, salesman switch is in "OFF" position but start battery is connected, then everything in the coach still works.
WEIRD!!
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: Start battery disconnected--BUT?

Reply #1
I would say something is bleeding back.
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348

Re: Start battery disconnected--BUT?

Reply #2
Check isolator.

P
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Start battery disconnected--BUT?

Reply #3
Yes, and I would add check boost relay - another path for cross-feed between house and chassis.

Any 12V work done recently by you or someone else?
Peter and Tammy Fleming
1991 U300 GV 40 - Sold, owned for 4 years
Downsized to Roadtrek Popular 210 class B

Re: Start battery disconnected--BUT?

Reply #4
Do you have a Trik-L-Start installed?
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

 

Re: Start battery disconnected--BUT?

Reply #5
No Trik-L-Start,
Some idiot (correction--Slightly above average idiot--me) ha been the only one trying to eliminate the gremlins in the electrical systems.
Right now trying to get ready for winter so hunting for the gremlin will have to wait until I get the coach back from storage  (without any batteries or electrical hookup) in the spring.
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD