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Old 11-19-2021, 12:22 AM   #1
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Model: Thor Delano 24TT
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Check all electrical connections immediately

A little info. After reading in the forum about bad transfer switchís and bad connections I had the same problem on my new unit. I had problems with my transfer switch working at times switching to Shore Power but the service center said nothing was wrong so I drive it back home and plug it in. I come back in 30 minutes and smell a very familiar smell ( used to do electrical work). I knew then what was wrong and sure enough the switch was super hot and when the cover was removed there were the burnt wires on the input side . I then shut everything off and amazingly almost every wire was loose on connections. Even the grounds were loose. I understand the transfer switch has specific torque values for the wires but the it appears none were ever followed.
Please check your connections right away to avoid a potential disaster of your unit going up in smoke. (although it sounds like some of you may want that result 😀😀 from all the troubles we get). If you are not experienced with working on electrical issues then have someone who is check them for you. Traveling on our roads only make the situation worse with time. Mine will be checked now on a regular basis.

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Old 11-19-2021, 12:37 AM   #2
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We have had almost this exact thread & post posted on the forum multiple times. It's a great reminder from a new face and an area we constantly point to when people have SP/Generator problems that fit the symptoms of a poor connection at the ATS.

The second most common place this type of problem occurs is with the 120 VAC connections for the water heater. Another place to proactively check before you have problems.
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Old 11-19-2021, 02:20 AM   #3
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This forum was sure a big help for me in catching this problem. I just wanted to repost it as it is more of a safety issue rather than cosmetic. The forum shows us we have to make our own QC on any Motorhome no matter what the name is on the outside.
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Old 11-19-2021, 03:49 AM   #4
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My list of things to check after I finish with the front cap is growing. Maybe I should take the whole coach apart and put it back together it would likely be much simpler
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Old 11-19-2021, 06:13 AM   #5
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Appreciate posts like this. I read one of the others before I took possession of mine and was sure to check all wires first thing. Happy to report all mine were super tight, but glad I checked and have that piece of mind now.
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Old 11-19-2021, 05:36 PM   #6
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My list of things to check after I finish with the front cap is growing. Maybe I should take the whole coach apart and put it back together it would likely be much simpler

Save the staples...you can recycle them as scrap metal and probably be able to buy a few tanks of fuel.
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Old 11-19-2021, 11:44 PM   #7
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Save the staples...you can recycle them as scrap metal and probably be able to buy a few tanks of fuel.
Good idea don't think the cheap self tapping screws are worth anything.
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Old 11-19-2021, 11:59 PM   #8
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Old 11-20-2021, 12:17 AM   #9
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Now you have a idea what happens when you hear about a RV burning down. I am sure glad you caught that one.
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Old 11-30-2021, 09:24 PM   #10
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I second this.. Was on a trip this past weekend. Temps in low 20s so furnace was running a lot. Around 2am I heard the fridge check light beep when the furnace would kick on (was on shore power). Google pointed to low voltage issues. Furnace just stopped working along with the fridge and all 12 volt appliances. Converter looked fine until we noticed one of the wires was completely disconnected. Thor didnít even strip back the sheathing at the connection point for this wire.. This was overlooked in the pdi as it appeared to be secure and actually stayed in contact in a half contacted state for over a year without issues.
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Old 11-30-2021, 10:07 PM   #11
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I second this.. Was on a trip this past weekend. Temps in low 20s so furnace was running a lot. Around 2am I heard the fridge check light beep when the furnace would kick on (was on shore power). Google pointed to low voltage issues. Furnace just stopped working along with the fridge and all 12 volt appliances. Converter looked fine until we noticed one of the wires was completely disconnected. Thor didnít even strip back the sheathing at the connection point for this wire.. This was overlooked in the pdi as it appeared to be secure and actually stayed in contact in a half contacted state for over a year without issues.
Glad you found the issue. Never heard a light beep though
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Old 12-01-2021, 01:34 AM   #12
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There are a lot of RV’s out there that are similar to your RV and mine. What is so troublesome is this issue can easily cause a fire and burn your RV down. This is especially true if it is on the AC side. It is almost impossible to check every connection as some are hidden in different areas of the RV. New owners have no idea that these issues can exist in their new units no matter what the price range is. I also walked around my unit and could not believe how many screws were loose and some stripped ( replaced them with next size up). This was both inside and outside the unit. Trying to get a “new” unit up to where it should be is a lot of work.
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Old 12-23-2021, 10:14 AM   #13
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Some suggest to hire an RV inspector when purchasing a used and even a new RV. This may be the answer to those that don't want to or cannot handle this type of work. Just make sure you ask the inspector first if he will actually go to that extreme to check each connection. I'm sure he will depending on how much you pay.
Paying so many thousand (or hundreds of thousands) for an RV. Seems like it's a no brainer.
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Old 12-23-2021, 12:16 PM   #14
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I added checking electrical connections to my annual list of stuff to check. I do it when doing roof, dicor, and seam inspection each year. It now takes almost a full weekend to do all of this. Donít forget to check lug nuts for tightness and air filter housing for bird nests.
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Old 12-26-2021, 02:05 AM   #15
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That is a great idea. Also buy a small toque wrench and torque the lugs according to specs . My transfer switch manufacturer sent me the chart.
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