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Old 10-15-2020, 03:41 PM   #1
Winnebago Camper
 
Join Date: Oct 2020
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Solenoid --exciter voltage? 2011 Sprinter

I have read every post I can find about the Battery Combiner Solenoid in winnebago MH. I have new solenoids installed ST 95 NAPA.
My 2011 ERA Battery Combiner Solenoid control wire "labeled LF in wiring diagrams" is dead!!! The 6amp circuit breaker is working properly and it does not have 12v and the wire to the solenoid does not not have a 12V when engine is running --unless I push the dash mounted Battery Boost switch.

Where does the 12v source to excite the combiner solenoid. I can hot wire it but there must be a relay or fuse some place I can't find. The collection of relays under the drivers seat --just might have a relay that does the job. I can't id the relays however,.

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Old 11-11-2020, 08:00 PM   #2
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Quote:
Originally Posted by JimMcG View Post
I have read every post I can find about the Battery Combiner Solenoid in winnebago MH. I have new solenoids installed ST 95 NAPA.
My 2011 ERA Battery Combiner Solenoid control wire "labeled LF in wiring diagrams" is dead!!! The 6amp circuit breaker is working properly and it does not have 12v and the wire to the solenoid does not not have a 12V when engine is running --unless I push the dash mounted Battery Boost switch.

Where does the 12v source to excite the combiner solenoid. I can hot wire it but there must be a relay or fuse some place I can't find. The collection of relays under the drivers seat --just might have a relay that does the job. I can't id the relays however,.

[email address removed]
No Answers?!!!
Wrote to Winnebago. Power comes from ignition switch from up-fitter terminal through D+ use #12 under driver seat. I checked all that stuff out several times. Inspected the fuse --looked good. DON'T EVER EVER EVER assume a fuse is good because you cant see a broken element!! Got so frustrated I started using the ohm meter to test continuity of every wire. For the hell of it I checked the good fuse----not so good. Under a microscope ---hair line fracture. Electricity at 12VDC potential can not jump an air gap!!!!!!!!!!!!!!!!!!!!! EGG OF FACE :-(
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