Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > MOC on M.A.R.S. > Montana Problems, Problem Solving & Technical Help
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 11-17-2019, 04:58 PM   #1
fastf350ps
New Member
 
Join Date: Oct 2018
Location: MONTICELLO
Posts: 8
M.O.C. #22921
Question FL375 MBR slide-out 12 v circuit.


I have a light on the 12 volt fuse panel for a circuit, and it wonít go off with the new fuse. does that mean thereís a short in the circuit? Whatís the best way to find the short? Any help would be appreciated!
fastf350ps is offline   Reply With Quote
Old 11-17-2019, 05:48 PM   #2
rohrmann
Montana Master
 
rohrmann's Avatar
 
Join Date: Oct 2012
Location: Box Elder
Posts: 2,828
M.O.C. #12947
A red light on below one of the fuses means the fuse is open on a circuit that is switched on, like light circuit with the wall switch turned on. On our panel, the red lights are not directly below the fuses, but offset a bit, so make sure you are checking the correct fuse. There might be a short causing the fuse to blow, or you may have just overloaded that circuit. It is also possible that when replacing a fuse on a circuit that is shorted, that the fuse can blow when installing it and you might not notice it.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
rohrmann is offline   Reply With Quote
Old 11-19-2019, 10:27 AM   #3
fastf350ps
New Member
 
Join Date: Oct 2018
Location: MONTICELLO
Posts: 8
M.O.C. #22921
No bad fuse

The fuse is not bad. Is it then safe to assume the wires are shorted together (pos. and neg.) somewhere?? (We've had mice!)
fastf350ps is offline   Reply With Quote
Old 11-19-2019, 05:43 PM   #4
rohrmann
Montana Master
 
rohrmann's Avatar
 
Join Date: Oct 2012
Location: Box Elder
Posts: 2,828
M.O.C. #12947
It can be rodents or just about anything like a misplaced screw to wires being mis-routed and pinched or cut. The first direction I would go in would be opening all boxes, with a switch or behind a light fixture to see if a connection came apart that could be shorted. I've had a couple of incidents where the crimp connection was poorly made and just had to be remade, but did not get to the point of being shorted to a ground, but was close. Beyond that, it's a guessing game, but you would need to isolate all the runs between splices to find where it might be if it isn't a bad connection.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
rohrmann is offline   Reply With Quote
Old 11-20-2019, 06:55 AM   #5
psomers
Montana Master
 
Join Date: Aug 2012
Location: Northport
Posts: 515
M.O.C. #12724
If fuse associated with that light is good, the problem must be in fuse box itself. The light is in parallel with the fuse. If fuse is good current goes through fuse and none through light.
__________________

Paul Northport,AL W4XH
2013 358 RLT Mountaineer
2008 Silverado Duramax
psomers is online now   Reply With Quote
Reply

Tags
fuse panel

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
Forum Jump

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Montana RV, Keystone RV Company or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 08:01 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×