|
05-11-2021, 01:04 PM
|
#1
|
Junior Member
Brand: Thor Motor Coach
Model: TIBURON
State: North Carolina
Posts: 9
THOR #23330
|
2021 Thor Tiburon AC won't come on
Just bought this rig (450 miles from home). AC worked well at dealer (both shore power and generator).
Plugged unit into 50-amp circuit at a camp ground (with dogbones to attach 30-amp power cord). Everything works on the control panel except the Air Conditioner.
When I select "Cooling", nothing happens (long 15 minute or so wait times). All other options on the panel work fine (furnace, lights, slides, etc), but not the AC.
Checked the AC circuit breaker...it is not tripped (I opened and closed it just to be sure).
I've read about 'resetting these control panels', but have no guidance on how to do that.
__________________
|
|
|
05-12-2021, 11:45 PM
|
#2
|
Junior Member
Brand: Thor Motor Coach
Model: TIBURON
State: North Carolina
Posts: 9
THOR #23330
|
Okay, so no quick responses. But, an update, anyway (including questions). I am tending to think this is not a Control Panel issue, but possibly a 'power' problem. After several minutes working with a FireFly rep to see why the AC is not coming on (believing it to be a Control Panel/G12 issue), and not resolving anything (could not get power to the AirCon (small black box directly under the AC unit) from the G12 control box), I started other diagnoses. To determine if I had shore power, I ran the microwave and it heated water. But then I opened the refrigerator which I had set to 'Power/Electric only) vice Auto (Auto would kick in propane if electric power was not available). I found the fridge to be warm (I had it on 'power' for several hours). After returning from a trip, where the fridge was set to AUTO, it was fine (I am assuming that it ran on propane the entire time). What I am getting at is that POSSIBLY, even though there IS power coming from shore, there is not enough amperage to run the AC nor even the fridge, but is enough to run the microwave. This hints that it may be something with the Power Switch unit...just not sure. I don't know how to check how many amps are coming into the coach.
Any advice?
__________________
|
|
|
05-12-2021, 11:59 PM
|
#3
|
Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,129
THOR #7035
|
So with a 50 amp rig you essentially use two 120 VAC hot lines (just like your house). Although the microwave works, it appears you have no power to the other hot leg for the fridge and A/C. This can be caused by a faulty 50 to 30 amp adapter, a bad Automatic Transfer Switch (ATS), a bad Energy Management System (if installed) or just bad/loose connections. To determine your real issue you will need to be able to use a multimeter on live circuits. If this is not a skill you already have, troubleshooting this issue is not the place to gain that skill.
EDIT: I see I had you backwards - you have a 30 amp rig plugged into a 50 amp receptacle using a dogbone adapter.
So now I think you're down to bad connections as ALL 120 VAC loads in your MH run off the same hot leg. It won't be the ATS if your microwave is working.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
|
|
|
05-13-2021, 12:03 AM
|
#4
|
Senior Member
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,842
THOR #14698
|
Is there a 30 amp outlet to plug into? if not, do U have genny? Does everything work on the genny? My guess is if everything worked at the dealer my first suspect would be the dog bone. Then as Ace says might be Automatic Transfer Switch
__________________
2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
|
|
|
05-13-2021, 01:16 PM
|
#5
|
Junior Member
Brand: Thor Motor Coach
Model: TIBURON
State: North Carolina
Posts: 9
THOR #23330
|
The same situation occurs when running the generator. With Shore Power removed, I crank the gen. Go to the FireFly control panel and select COOLING. Nothing occurs. (Same as if on Shore Power). Hence, I tend NOT to believe it is a dogbone/wiring issue. (I also tried HEAT PUMP...nothing). But, I can turn on the furnace, lights, move the slide, etc.
Maybe the ATS is malfunctioning????? Does this mean a trip to a Thor dealer?
__________________
|
|
|
05-13-2021, 01:28 PM
|
#6
|
Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.6
State: New Mexico
Posts: 5,100
THOR #20220
|
Hi did you call thor? If you are near an independent rv tech please call and get pre approved with thor . They will fix
__________________
LAS CRUCES 2020 Thor Vegas 25.6
Lora & George. Golden Retriever & Multi-Gen Australian labradoodle & new ALD in March. Happy Campers!! E Biking, Hiking, Tennis, Scuba,Fishing,Cross Country Skiing, Snowshoeing. Retired H.S. Principal, Sr. IT Engineer, Life & Health Insurance Agent
"Today is a Gift and Why it is called the Present"
|
|
|
05-13-2021, 01:35 PM
|
#7
|
Junior Member
Brand: Thor Motor Coach
Model: TIBURON
State: North Carolina
Posts: 9
THOR #23330
|
I have spoken to a Thor Rep when this first occurred (while traveling in Fla (I am in NC)). He referred me to FireFly (thinking it may be the Control Panel issue). He gave me the number of a Thor Dealer near me (1 hour drive). I was hoping to get a resolution before I take it to them, but I don't believe that is going to happen. I'll call today to see if I can get an appointment (of course, with our current gas shortage here in NC, I probably won't get to them for a few days).
I am not a mechanic, but can do basic stuff with a multimeter. Was hoping to track down the issue myself. But if the ATS is malfunctioning, that would be beyond my abilities.
EDIT: With the fridge also not working (unless set to propane), I am becoming more convinced the ATS (or something else) is faulty.
__________________
|
|
|
05-13-2021, 01:47 PM
|
#8
|
Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,129
THOR #7035
|
I'll say it again: If the microwave works on a 30 amp coach then the ATS is NOT the issue.
The ATS simply passes 120 VAC from either SP or the generator to the breaker panel so if any 120 VAC load from the breaker panel is working, the ATS is working.
The fridge not working on 120 VAC may or may not be related to the A/C not working, but the only way to know is to start tracing power with your multimeter.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
|
|
|
05-13-2021, 03:24 PM
|
#9
|
Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,147
THOR #12751
|
What 16ACE27 said......
If you have more than one 120V appliance not working, then it is likely and AC power issue AFTER the transfer switch.
I would try to get behind your power distribution center and check the wiring going into the breakers, busbar, juncton boxes, etc. There have been plenty of instanced where there was loose wiring, incorrect wiring, etc. on these coaches
Make sure your off shore / genny power before you go poking around in there.
Since the fridge seems to be a problem, get yourself a tester like this one at Home Depot and check to see if have an issue at the outlet it is plugged into. It may help point you in the right direction.
__________________
|
|
|
05-14-2021, 02:56 PM
|
#10
|
Junior Member
Brand: Thor Motor Coach
Model: Tiburon 24RW
State: Washington
Posts: 17
THOR #16940
|
I don't have a solution, but this will get you in touch with other Tiburon/Delano owners who may have experienced the same issue.
Facebook Group: Thor Delano & Tiburon RV Owners.
It's a private group. You need to 'apply' to get access. Currently 235 members. It's a pretty active group with questions, solutions, etc.
Good luck to you.
__________________
Larry & Jean - Kelso, WA
2022 Thor Tiburon 24RW (on a) 2020 Mercedes Sprinter 3500XD - No toad
|
|
|
05-09-2022, 11:55 PM
|
#11
|
Junior Member
Brand: Thor Motor Coach
Model: Tiburon 24FB
State: Illinois
Posts: 4
THOR #9479
|
Having same issue
Could you please share what the cause of the a/c not working was.
I am having the same problem on a 2022 Tiburon 24FB.
Thanks!
__________________
|
|
|
05-10-2022, 11:00 AM
|
#12
|
Junior Member
Brand: Thor Motor Coach
Model: TIBURON
State: North Carolina
Posts: 9
THOR #23330
|
Believe it or not, it was simply a loose wire behind the fuzebox. Thor dealer found the issue and solved it. Says he sees it frequently, and not just Thor products.
__________________
|
|
|
05-12-2022, 01:58 AM
|
#13
|
Junior Member
Brand: Thor Motor Coach
Model: Tiburon 24FB
State: Illinois
Posts: 4
THOR #9479
|
Thank you!!!
I got behind the electrical panel and found an unrelated wire disconnected. Also found a cable not connected to the stereo when I pulled that out. Ended up finally finding a loose connection when I removed the interior cover of the a/c.
__________________
|
|
|
05-12-2022, 10:31 AM
|
#14
|
Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,407
THOR #17765
|
Quote:
Originally Posted by SamOscarBrown
Okay, so no quick responses. But, an update, anyway (including questions). I am tending to think this is not a Control Panel issue, but possibly a 'power' problem. After several minutes working with a FireFly rep to see why the AC is not coming on (believing it to be a Control Panel/G12 issue), and not resolving anything (could not get power to the AirCon (small black box directly under the AC unit) from the G12 control box), I started other diagnoses. To determine if I had shore power, I ran the microwave and it heated water. But then I opened the refrigerator which I had set to 'Power/Electric only) vice Auto (Auto would kick in propane if electric power was not available). I found the fridge to be warm (I had it on 'power' for several hours). After returning from a trip, where the fridge was set to AUTO, it was fine (I am assuming that it ran on propane the entire time). What I am getting at is that POSSIBLY, even though there IS power coming from shore, there is not enough amperage to run the AC nor even the fridge, but is enough to run the microwave. This hints that it may be something with the Power Switch unit...just not sure. I don't know how to check how many amps are coming into the coach.
Any advice?
|
I found in my unit that the “appliance” fuse feeds 12v not only to the fridge, but also to the AC thermostat. Have you checked that in your house fuse box?
__________________
|
|
|
05-15-2022, 10:24 AM
|
#15
|
Junior Member
Brand: Thor Motor Coach
Model: Tiburon 24FB
State: Illinois
Posts: 4
THOR #9479
|
Yes. I checked, and all fuses were good. Turns out it was just a loose connection in the black box inside the a/c unit coming from the G12 control box. A/C ran all day yesterday. No issues. Problem solved. I hope.
__________________
|
|
|
05-15-2022, 12:50 PM
|
#16
|
Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,407
THOR #17765
|
Thanks for sharing the solution.
__________________
|
|
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|