Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 07-11-2018, 12:04 AM   #1
Member
 
Brand: Thor Motor Coach
Model: ACE 29.2
State: New Hampshire
Posts: 61
THOR #5447
Please check this safety issue on your coach

I just removed these burnt wire connectors from my transfer switch after detecting an electrical smell. Please take a minute to ensure yours are tight and not a fire hazard.
Attached Thumbnails
Click image for larger version

Name:	IMG_0014.jpg
Views:	251
Size:	104.0 KB
ID:	11338  
__________________

__________________
djc290 is offline   Reply With Quote
Old 07-11-2018, 12:32 AM   #2
Senior Member
 
SuperD's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Windsport 29M
State: Indiana
Posts: 3,628
THOR #5196
Quote:
Originally Posted by djc290 View Post
I just removed these burnt wire connectors from my transfer switch after detecting an electrical smell. Please take a minute to ensure yours are tight and not a fire hazard.
Burnt wire nut connections seem to be common, these pictures are from the 120 volt connection to our water heater. I’m still wondering if there are connections I haven’t checked that could be bad, keeps me a little paranoid!!!

Click image for larger version

Name:	1E16D1E1-8ABE-4D29-A3EA-9243F2DEFF19.jpg
Views:	324
Size:	106.8 KB
ID:	11339

Click image for larger version

Name:	C2AD4DC8-2B64-4346-A72D-B3DC61C7A930.jpg
Views:	319
Size:	109.2 KB
ID:	11340
__________________

__________________
USMC Veteran
FMCA 101070S

Dave & Myra
One day your life will flash before your eyes,
make sure it's worth watching!
SuperD is offline   Reply With Quote
Old 07-11-2018, 01:08 AM   #3
Member
 
Brand: Thor Motor Coach
Model: ACE 29.2
State: New Hampshire
Posts: 61
THOR #5447
open your transfer switch - not easy as i had to slide the breaker box out a few inches to get to it, but inside the switch are numerous wire nut connectors - these seem to be the common problem. Hopefully THOR starts to use a better connection process.
__________________
djc290 is offline   Reply With Quote
Old 07-11-2018, 02:19 AM   #4
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,265
THOR #3156
Mine was the same way. I found it A few weeks ago. I removed the stranded wire pigtails, soldered ring connectors to the ends of the solid wires and attached them directly to the switch. Dont have to worry about the wire nuts anymore.

Now to crawl under the sink to check the water heater connections.

Jerry
__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is offline   Reply With Quote
Old 07-11-2018, 04:48 AM   #5
Senior Member
 
State: Alaska
Posts: 245
THOR #8813
Quote:
Originally Posted by SuperD View Post
Burnt wire nut connections seem to be common, these pictures are from the 120 volt connection to our water heater. I’m still wondering if there are connections I haven’t checked that could be bad, keeps me a little paranoid!!!



Attachment 11339



Attachment 11340


Typical Thor quality. I found several loose and some unconnected .
__________________
carlgorski is offline   Reply With Quote
Old 07-11-2018, 04:57 AM   #6
Senior Member
 
Maxjr758's Avatar
 
Brand: Thor Motor Coach
Model: Challenger 37BT
State: North Carolina
Posts: 248
THOR #11321
Quote:
Originally Posted by carlgorski View Post
Typical Thor quality. I found several loose and some unconnected .
Jezzz now I have to check my transfer switch, the first time I started the genny I smelled hot wire smell, just for a few seconds, then it went away, thought it was Genny components heating up. Hope I'm right ,and don't find what you guys did.
__________________
Max Shaver Jr.
2017 Thor Challenger 37 TB
Maxjr758 is offline   Reply With Quote
Old 07-11-2018, 10:34 AM   #7
Senior Member
 
BandG's Avatar
 
Brand: Thor Motor Coach
Model: Windsport 29M
State: Pennsylvania
Posts: 177
THOR #10254
I still need to check mine.

So I don't get zapped while attempting this....

Do I need to disconnect Shore Power and Coach batteries before starting?
__________________
Bryce, Gracia & Shadow (3 yr old mini-Daschund mix)
US Army vet- 82nd Airborne Div
BandG is offline   Reply With Quote
Old 07-11-2018, 01:51 PM   #8
Senior Member
 
SuperD's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Windsport 29M
State: Indiana
Posts: 3,628
THOR #5196
Quote:
Originally Posted by BandG View Post
I still need to check mine.

So I don't get zapped while attempting this....

Do I need to disconnect Shore Power and Coach batteries before starting?
Shore power disconnected, generator off, inverter, if you have one, off. No power, no shock. Be safe, electricity will bite!
__________________
USMC Veteran
FMCA 101070S

Dave & Myra
One day your life will flash before your eyes,
make sure it's worth watching!
SuperD is offline   Reply With Quote
Old 07-11-2018, 02:31 PM   #9
Senior Member
 
Brand: Thor Motor Coach
State: Florida
Posts: 896
THOR #1249
Just say NO to wire nuts in your transfer switch. The problem is, the wire nut screw threads cut thru stranded wire when connecting to solid wire; i.e. romex. The tighter you tighten them, the more they cut thru the stranded wire and cause a high current especially when you turn your AC on or other heavy elec. load.

Like others and myself have done, remove the stranded wire from the transfer switch and connect the solid copper wire directly to the lugs on the TS.
__________________
MR 2015 Thor Vegas 24.1 in Ocala
mcr1010 is offline   Reply With Quote
Old 07-11-2018, 04:50 PM   #10
Senior Member
 
Brand: Thor Motor Coach
Model: Windsport 27K
State: Kentucky
Posts: 669
THOR #2817
I don't like the fact that there is solid wire anywhere in the RV. And I certainly don't like the use of wire nuts in any moving vehicle. The vibrations can eventually break solid wires and loosen wire nuts.
__________________
Metalman is offline   Reply With Quote
Old 07-15-2018, 07:22 PM   #11
Junior Member
 
Brand: Thor Motor Coach
State: Indiana
Posts: 29
THOR #11100
I have a 2018 THOR ACE. Any idea where the transfer box might be located?
__________________
2018 THOR A.C.E. 29.3
Cmax Energi Toad
SumoSprings, Safety Plus
HatrackRV is offline   Reply With Quote
Old 07-15-2018, 07:44 PM   #12
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 1,463
THOR #6411
Thor plant 750 usually puts all the entry wiring under the bed. It is the first plastic box in the lead-in wiring. If it a 30 amp wire it is a orange four wire flat cable coming in plus a gray four wire coming in from the generator. The output will be the same yellow cable. For a 50 amp coach the input will be black like your shoreline and the same as for a 30 amp coach for a generator. The black box in the upper right is the transfer switch
Attached Images
 
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline   Reply With Quote
Old 07-28-2018, 06:15 PM   #13
Member
 
Brand: Thor Motor Coach
State: Ohio
Posts: 59
THOR #9459
Transfer box

I have a 2017 Thor 24.1 Vegas any ideas where the transfer box is
__________________
Rawhide67 is offline   Reply With Quote
Old 07-28-2018, 06:23 PM   #14
Member
 
Brand: Thor Motor Coach
Model: 29.2 ACE
State: California
Posts: 71
THOR #11409
While your under the bed go through and tighten all the screws on the inverter and terminal bar.
I found many lose or never even tightened at all from thor.
Almost burnt my main shore power input as well lost 6 battery before finding the problem.
Today I fired up the refrigerator and it literally blew up.
Attached Thumbnails
Click image for larger version

Name:	20180728_080716.jpg
Views:	188
Size:	118.7 KB
ID:	11838  
__________________
Jeff van is offline   Reply With Quote
Old 07-28-2018, 06:36 PM   #15
Junior Member
 
Brand: Thor Motor Coach
State: South Carolina
Posts: 13
THOR #2176
Check Refrigerator propane hose too

While in the checking for fire dangers look at the worlds cheapest (RV vocabulary for “world class”) propane hose.

See the picture of the results of missing that task.

Good luck to all Thor owners.
Attached Thumbnails
Click image for larger version

Name:	442B4E04-6DC6-46AB-8CA4-060059FA3D4D.jpg
Views:	204
Size:	148.0 KB
ID:	11839  
__________________
CMilford is offline   Reply With Quote
Old 07-28-2018, 06:45 PM   #16
Junior Member
 
Lusitan's Avatar
 
Brand: Thor Motor Coach
Model: Siesta 24ST Sprinter
State: North Carolina
Posts: 13
THOR #4196
Thor likes to say it has quality control (QC). The fact is, they can not even spell QC. After two years of ownership of one of their sorry products, and having to fix dozens of issues that should of been flagged by QC, I am a firm believer of that fact. So we, the users, become the QC...
__________________
_______________
Frank
US Army CWO (Ret)
Leland, NC
2016 Thor Sprinter Siesta 24ST
Lusitan is offline   Reply With Quote
Old 07-28-2018, 06:47 PM   #17
Junior Member
 
Brand: Thor Motor Coach
Model: windsport 34P
State: Michigan
Posts: 10
THOR #9078
recall?

Why hasn't Thor recalled all our coaches? Does someone have die?

Can someone post an enlarged photo of the transfer switch? What does this switch do?
__________________
tuckerfolk is offline   Reply With Quote
Old 07-28-2018, 07:04 PM   #18
Senior Member
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: California
Posts: 244
THOR #3186
A transfer switch takes two AC sources of power such as a generator and shore power, switches to one or the other and sends it to your 120v fuse panel. The inputs have one primary over the other. Two 120v AC sources active together don’t play well together.

Generally you shouldn’t see stranded wire in 120 v service except for the appliance side of receptacles. I installed a 3000 watt inverter, a new sub panel and a second transfer switch for the inverter. I used romex and didn’t notice any stranded wire for the 120. I did notice the use of 12, possibly 10 g romex for the mains.

I have to double check it out though. We mostly use solar.
__________________
Forest Grump is offline   Reply With Quote
Old 07-28-2018, 07:12 PM   #19
Junior Member
 
Brand: Thor Motor Coach
State: South Carolina
Posts: 13
THOR #2176
Here’s a thought. Thor sells to a customer who places a significant emphasis on original cost. The entire RV industry shares that problem. The result is increasing pressure to make cheaper and cheaper products.

The cost of a well made RV is probably prohibitive. I’m guilty. Price for the coach part was very significant. I paid extra to get a high quality truck (Mercedes Sprinter). I believed the lies the Camping World salesman told me when I could have inspected the details of the coach and seen the poor quality construction and cheap labor. I could have asked for a wiring diagram and shopped elsewhere when learning there was no wiring diagram available.

I could have done a lot of detailed checking but I did not. I got excited and believed the nice guy who sold the RV to me. Thank God it burned to the tires in my driveway. No one would have survived that fire.
__________________
CMilford is offline   Reply With Quote
Old 07-28-2018, 07:15 PM   #20
Junior Member
 
Brand: Thor Motor Coach
Model: Freedom Elite
State: Tennessee
Posts: 2
THOR #11344
Quote:
Originally Posted by djc290 View Post
I just removed these burnt wire connectors from my transfer switch after detecting an electrical smell. Please take a minute to ensure yours are tight and not a fire hazard.
Had the exact same problem a couple weeks ago. Didn’t find the burnt wires until a few weeks later when I lost power all together. 2014 Freedom Elite. I was able to trim the burnt wire and still had enough to reconnect.
__________________

__________________
sdbutler49 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 05:45 PM.


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