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Old 08-16-2020, 08:28 PM   #1
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Brand: Thor Motor Coach
Model: 22B
State: California
Posts: 16
THOR #5854
Need Help! Transfer Switch Located? Thor Four Winds 22B

Need to know where is transfer switch and inverter is located for inspection? Iím suspecting one of them is fried.....Had smoke inside cabin while running generator and abruptly turned off. Now thereís no electricity and when I try to connect shore power cord to my house outlet, it trips GFCI....

Thanks

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Old 08-16-2020, 08:34 PM   #2
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Brand: Thor Motor Coach
Model: Hurricane 35C
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THOR #7174
What kind of coach? You can try under bed if you have a bigger Class A. But as I just found out you might not actually have a transfer switch only an inverter with an internal switch
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Old 08-16-2020, 08:37 PM   #3
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Brand: Thor Motor Coach
Model: 22B
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THOR #5854
2016 Thor Four Winds 22B Ford e450. 1 slide out on Drivers side bedroom & breaker box is locate under bed
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Old 08-16-2020, 08:58 PM   #4
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THOR #6411
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Originally Posted by djcarter View Post
What kind of coach? You can try under bed if you have a bigger Class A. But as I just found out you might not actually have a transfer switch only an inverter with an internal switch
If you have an onboard generator and your coach was made after 2008, then you have a transfer switch. It is an RVIA requirement. On most plant 750 coaches, the transfer switch is usually under the bed. In coaches with four slides; usually, it can be found in the 1/2 bath with the power center.
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Old 08-16-2020, 09:04 PM   #5
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THOR #7174
I'm guessing they count the inverter transfer switch as good enough then because I just did a complete solar, battery and inverter install and found out we don't. All we have is the transfer switch in the inverter.
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Old 08-17-2020, 12:28 AM   #6
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How can I slide out bed to get access with no plug in or shore power? Will not slide out with engine running... Bed platform covers entire access panel in closed position & close to wall giving small space to walk.
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Old 08-17-2020, 12:41 AM   #7
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Brand: Thor Motor Coach
Model: Mandalay
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THOR #11268
My Thor Four Winds in under the bed on my 45 footer. I can raise the wood platform holding the mattress and gain access in the storage hold under the bed. I just remove the storage area walls with 2 or 3 screws and everything is in reach. I do not need to roll the slide out to raise the bed albeit it would give more working room in the bedroom.

Good luck
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Old 08-17-2020, 01:54 AM   #8
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Originally Posted by djcarter View Post
I'm guessing they count the inverter transfer switch as good enough then because I just did a complete solar, battery and inverter install and found out we don't. All we have is the transfer switch in the inverter.
If that were true, the shore power cord would be live anytime the generator was running.
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Old 08-17-2020, 02:06 AM   #9
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Model: ACE 27.1
State: Florida
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THOR #7035
Quote:
Originally Posted by djcarter View Post
I'm guessing they count the inverter transfer switch as good enough then because I just did a complete solar, battery and inverter install and found out we don't. All we have is the transfer switch in the inverter.
Your DC system upgrades had nothing to do with the Shore Power/Generator Automatic Transfer Switch. Two separate systems and completely separate from the Automatic Transfer Switch in the inverter.
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Old 08-17-2020, 09:03 PM   #10
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Thanks guys for all the input! Will be doing some shopping: Anyone recommend Automatic Switch 30amp?
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Old 08-18-2020, 04:07 AM   #11
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Model: Four Winds Siesta 24 SA
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THOR #13919
On my 2008 Four Winds Siesta 24SA it was located under the drawers and stove in the kitchen. It was on the floor at the bottom. Almost impossible to get to.
Harry
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Old 08-18-2020, 08:59 AM   #12
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Hmmm! Interesting...? Puff of smoke was centered around the kitchen area. Will pull out drawers and check before I proceed to slide out. Thanks.
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Old 08-19-2020, 10:00 PM   #13
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Brand: Thor Motor Coach
Model: 22B
State: California
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THOR #5854
Update:
Called Thor today and did in fact verify TS is located under bedroom platform. Also, sent me a full electrical schematic of the RV.

Thanks peeps for all the advice and input! It’s time now to get to work......
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