Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 09-13-2018, 01:33 PM   #1
Junior Member
 
Brand: Thor Motor Coach
State: Indiana
Posts: 29
THOR #11100
Blowing fuses

Reposting to this site, sorry if youíve already seen it.

Ok folks, I am towing a Ford C-Max with my 2018 THOR ACE 29.3. I installed the wiring for the tail lights, breaks and turn signals from a kit I purchased from eTrailer. It uses diodes to tap into the existing rear lights of the Cmax. Its a combined system with turn signals and breaks on the same circuit. I keep blowing the number 22, 20 amp fuse (its in the panel right by the steering column on the Ford F53 chassis). This fuse controls the turn signals and breaks lights to the trailer hitch. All lights on the coach always work fine, the 12 volt trickle charge to the Cmax battery always works and the Cmax running tail lights always work when connected to the coach. I replace the fuse itís works for a while then when I stop and check the turn signals and break signals to the Cmax will be out at some point during the trip. I have connected the ground to a ground post the Cmax has in the engine compartment. I have checked and rechecked every connection and I cannot seem to find the problem. Iím looking for suggestions and any help would be greatly appreciated.
__________________

__________________
2018 THOR A.C.E. 29.3
Cmax Energi Toad
SumoSprings, Safety Plus
HatrackRV is offline   Reply With Quote
Old 09-14-2018, 02:46 AM   #2
Senior Member
 
Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 946
THOR #2631
Well since no one seems to be touching this one.......as yet. Can I ďassumeĒ that your toad wiring is as shown in the attached schematic? If yes, then wiring should be straight forward and it sounds like you have had it working ....for a while at least, each time you replace the fuse. So it sounds to me like an intermittant short to ground somewhere in either the left or right signal/brake cct, as a first guess. So I would recheck those signal/brake wires at the coach trailer hitch terminals and at the toad front hitch terminals as a first check. If the problem occurs while travelling then perhaps there is a termination that randomly grounds out in turns/flexing etc. Failing that, perhaps one of the toad signal/brake feeders from front to rear lights/diodes has been cut or skinned passing through the toad body somehow?
Attached Thumbnails
Click image for larger version

Name:	Combined Toad Signalling.jpg
Views:	119
Size:	28.6 KB
ID:	12786  
__________________
javelin 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


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 07:43 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×