Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 

Click Here to Login
View Single Post
Old 04-14-2021, 09:40 AM   #23
Judge
Senior Member
 
Judge's Avatar
 
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,147
THOR #12751
Same here.......

I spoke to Precision Circuits a year ago and they told me the same thing.... that is didn't matter which way it was wired. They even sent me a replacement BIM160.

I installed the new BIM and the behavior did not change. Then after searching other coach manufacturer forums, I found they all wire the BIM opposite of Thor.

As soon as I moved the chassis battery cable and the wire for the chassis voltage monitoing to the BATT-A post and moved the house batteries to BATT-B, all the problems went away and it started working as designed. I also verified the SIG post went to the emergency start switch.

Two other things I considered that made me think the other manufacturers were right......

First.... the IGN post is directly above the BATT-A post. I could not get the schematics the circuit board inside the BIM but I am guessing that has an impact on operation because schematics I have seen show that going to the chassis batteris.

Second... from information that I read about the the BIM for LI batteries, the chassis battery MUST be connected to the BATT-A post. It looks identical to the BIM 160/225 but we know LI batteries need to be handled differently.

Now I have a diesel but I can't imagine it matters between a gasser and a diesel... even though I have two chassis batteries.

All I know is putting in a new BIM160 didn't fix the problem but wiring it the way the other coach manufacturers did solve all of my issues.
__________________
Judge is offline   Reply With Quote
 
» 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 01:26 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2024, vBulletin Solutions, Inc.