Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 08-03-2019, 02:51 AM   #1
Junior Member
 
Brand: Thor Motor Coach
State: California
Posts: 7
THOR #16215
Inverter Fail

Hi all,

Iím new to the forums. DH and I have a 2020 Hurricane 34J we picked up about 6 weeks ago and have a mystery problem we need help with.

Twice now suddenly every single thing in the RV will turn on...every light, fan, rear a/c, and furnace blasting hot air. The panel will show an inverter fault.

The first time it happened we couldnít turn anything back off but this time we were able to turn everything except the furnace off. The only way we can turn it off is to disconnect from shore power and hit the battery disconnect. When we reconnect the shore power the fault warning goes away and everything is fine.

Any ideas?
__________________

__________________
mjoseph320 is offline   Reply With Quote
Old 08-03-2019, 03:31 AM   #2
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 487
THOR #11781
Sounds like a trip back to the dealer.
__________________

__________________
Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
Lt Keefer is offline   Reply With Quote
Old 08-03-2019, 03:37 AM   #3
Junior Member
 
Brand: Thor Motor Coach
State: California
Posts: 7
THOR #16215
Quote:
Originally Posted by Lt Keefer View Post
Sounds like a trip back to the dealer.
Thatís what weíre trying to avoid. We live in it full time and while the sales and finance side of the dealer is amazing the service is slow as we know from our fifth wheel. They also donít have accommodations to stay in the RV while they work on it.

Our option might be to drop it off when we take a non-RV trip to Michigan in November.
__________________
mjoseph320 is offline   Reply With Quote
Old 08-03-2019, 11:22 AM   #4
Senior Member
 
pavemike's Avatar
 
Brand: Thor Motor Coach
Model: Vegas 25.5
State: Florida
Posts: 210
THOR #12686
Look for a mobile RV service in your area that is authorized to perform warranty work for Thor. It will require a phone call to Thor Customer Service but they are usually good about authorizing mobile tech service, especially when living full time in the RV. DO NOT be afraid to call Thor. Their Customer Service reps have been wonderful for most of us. It's what they were hired to do...take care of issues.
__________________
Mike & Diane
2018 Thor Vegas 25.5
2017 Jeep Wrangler Unlimited
pavemike is offline   Reply With Quote
Old 08-03-2019, 12:34 PM   #5
Junior Member
 
Brand: Thor Motor Coach
Model: Miramar 32.2
State: Texas
Posts: 8
THOR #14520
Firefly Multiplex Might Be At Fault

There is a known problem on some of the 2019 models related to the Firefly Multiplex System that closely mimics what you have seen. It happened to our Miramar 3-4 times.

Evidently Thor has a fix (upgrade IO control board) now that probably works. Ours is at the dealer now getting the upgrade.

Also be aware that the slides can move on their own while stopped due to this problem. Thor recommended we pull the fuse whenever we are camping.

For the furnace we had to lower the temperature setting down about 10 degrees below actual to get it to turn off.

Hope this helps... Enjoy your trips!
__________________
Raeburn2000 is offline   Reply With Quote
Old 08-03-2019, 12:35 PM   #6
Senior Member
 
Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 778
THOR #2631
Hi, does your new 2020 use the Firefly multiplex control system? Sounds like it might have some common control system that goes berserk. There have been some problems with the newer software/firmware on the Firefly systems noted on the Forum a few weeks ago, where systems (including slides) would start moving on their own. As you can imagine this is very dangerous.

I think that older version Firefly software/firmware had no issues and that Firefly had corrected their problems with the newer software and were working with Thor to install the corrected software/firmware. I am not sure if this is your problem, but I would call Thor and Firefly to see if your coach is a likely candidate.
__________________
javelin is offline   Reply With Quote
Old 08-03-2019, 12:36 PM   #7
Senior Member
 
TurnerFam's Avatar
 
Brand: Thor Motor Coach
Model: Palazzo 33.3 34'bunkhouse
State: Alabama
Posts: 1,758
THOR #4735
this is not an 'inverter fail' because all of those items you mentioned are actually NOT run thru the inverter, but thru the 12v fuse panel and your house batteries, and while the a/c unit is 120v only, it's THERMOSTAT is also 12v thru the fuse panel, which turns it on/off.

Sounds more like your CONVERTER is acting up, OR you may have a/some loose wires in your fuse panel, OR you have a REMOTE PANEL, such as Firefly, that is causing this situation.
__________________
the Turners
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada.... was WC Georgia, then W NorthCarolina, now Lacey's Spring, AL : )
TurnerFam is offline   Reply With Quote
Old 08-03-2019, 03:47 PM   #8
Junior Member
 
Brand: Thor Motor Coach
State: California
Posts: 7
THOR #16215
Thank you!!!

Yes we have the Firefly. Thank you so much for the insight. We will call Thor and see if we need an update and will pull the fuse for the slide in the meantime. So far that hasnít moved but I experienced that one time on our fifth wheel and I sure donít want a repeat!
__________________
mjoseph320 is offline   Reply With Quote
Old 08-03-2019, 05:14 PM   #9
Senior Member
 
TurnerFam's Avatar
 
Brand: Thor Motor Coach
Model: Palazzo 33.3 34'bunkhouse
State: Alabama
Posts: 1,758
THOR #4735
I doubt you'd ever see something like this happen prior to the more 'digitalization' of the electronic switching onboard RVs... I suspect the firefly system has been 'bit' : /

Forest River has also just announced some recalls due to similar problems with their systems and slides moving while traveling, on their own!
__________________

__________________
TurnerFam 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 05:50 PM.


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