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Old 09-03-2012, 09:56 PM   #1
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30 to 50 AMP Question

Well, the coach is in back at the dealer again. We have noticed some electrical issues, one caused the automatic transfer switch to require replacement. Another, issue is the AC causes the generator to flip the breaker. When we are plugged in to electricity breakers pop for no apparent reason. We have talked to the service people about this. They have suggested to us that we buy a 30 to 50 amp converter and plug into the 50 amp service whenever possible. Our coach is wired for 30 amp service and we could not find any literature that says this is the right thing to do. Anyone out there ever done this as a regular practice?
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Old 09-03-2012, 10:33 PM   #2
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I would get a local electrician involved, breakers could be aged, they are designed only to carry only 80% of it's rated capacity. So either the equipment is (non-professional opinion) in disrepair, or the breaker has weakened, or a combination of the two factors.
Going to 50 amp might really cause someone serious harm, the breaker is actually designed to sense and react to heat created by electrical current
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Old 09-03-2012, 10:42 PM   #3
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Going to a 50 amp connection would not help anything if it's the breakers going off inside the rig. There is some other problem.
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Old 09-04-2012, 12:21 AM   #4
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If this coach isn't under warranty, I'd find someone else to look for the cause. What is your dealer recommended is pure BS.
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Old 09-04-2012, 04:09 PM   #5
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Run don't walk and find another dealer or a good mobile tech.
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Old 09-04-2012, 04:49 PM   #6
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Remember one important characteristic of a RV salesperson is that they don't know diddly squat about how a RV operates or runs. The ONLY thing that they are really sure of is the profit margin on a new or used coach which allows them to know exactly how much they can squeeze out of a potential buyer.

Talk to a professional and in this case listen to people who have hooked up to thousands of RV pedestals around the country with both 30 and 50 amp service.

Bottom-line, your coach only needs 30 amp service. There are some parks that ONLY offer 50 amp service where they will loan you a 50-30 amp adapter to use while there.

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Old 09-04-2012, 05:07 PM   #7
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Using a plug adaptor is not going to change the amount of electricity flowing into the RV. That is the most asinine suggestion I've heard from a dealer in quite a while!

Check that all wire connections in circuit breaker panel are tight. This is not something to ignore, fires do happen.
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Old 09-04-2012, 05:27 PM   #8
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Transfer switch replacement may be a clue. Sounds like something is loose. Probably a loose main neutral. A loose neutral will cause all kinds of strange events, including a FIRE. I would have a qualified electrician do a once over on the electrical system. Also, I would not be powering the thing up until I found the problem.
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Old 09-04-2012, 05:48 PM   #9
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Thanks to all the comments. The coach is brand new. 2012 Itasca Sunstar purchased at the end of May. Still scratching my head about the service tech suggestion. Will definitely take all these suggestions to heart and get a certified electrician to provide an alternate opinion. Thanks again.
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Old 09-04-2012, 06:19 PM   #10
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Quote:
Originally Posted by sharksgirl21
Well, the coach is in back at the dealer again. We have noticed some electrical issues, one caused the automatic transfer switch to require replacement. Another, issue is the AC causes the generator to flip the breaker. When we are plugged in to electricity breakers pop for no apparent reason. We have talked to the service people about this. They have suggested to us that we buy a 30 to 50 amp converter and plug into the 50 amp service whenever possible. Our coach is wired for 30 amp service and we could not find any literature that says this is the right thing to do. Anyone out there ever done this as a regular practice?
A transfer switch going bad is far from unusual. The AC unit could have a bad capacitor, also not unusual, easy to fix and cheap. If this is the rear AC, it is powered solely by the genny, so it could be a bad capacitor or perhaps a bad 20a breaker on the genny.

Now coach breakers popping before reaching their rated load is rather unusual but they do go bad. You of course realize you cannot run the front AC, say an elec water heater and micro at the same time.

Using a 50a outlet will do nothing for your 30a coach. If your coach reaches 30a ( or say 16a on a 15a circuit) you will pop a breaker in the coach. *If* you were popping breakers at the pole, that *may* make a slight difference. The bottom line though is, if coach breakers are popping, plugging into 50a will do nothing to fix your problems.
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Old 09-04-2012, 06:29 PM   #11
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Quote:
Originally Posted by sharksgirl21
Thanks to all the comments. The coach is brand new. 2012 Itasca Sunstar purchased at the end of May. Still scratching my head about the service tech suggestion. Will definitely take all these suggestions to heart and get a certified electrician to provide an alternate opinion. Thanks again.
Since you're under warranty, you might as we'll let the dealer try to correct. But telling you to use 50a service certainly gives me pause on their expertise. If they don't correct everything with a reasonable cause, I would contact the factory and have them pay for a good independent RV electrician.
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Old 09-04-2012, 06:48 PM   #12
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Quote:
Originally Posted by sharksgirl21 View Post
Well, the coach is in back at the dealer again. We have noticed some electrical issues, one caused the automatic transfer switch to require replacement. Another, issue is the AC causes the generator to flip the breaker. When we are plugged in to electricity breakers pop for no apparent reason. We have talked to the service people about this. They have suggested to us that we buy a 30 to 50 amp converter and plug into the 50 amp service whenever possible. Our coach is wired for 30 amp service and we could not find any literature that says this is the right thing to do. Anyone out there ever done this as a regular practice?
Run;;;;;;; Don't walk away from that and get a professional involved with this. You will end up a very unhappy guy if you continue on the path your dealer wants you to travel down. A real electrical wizard will find your loose neutral or ground and fix it. You don't need te 50 amp service..
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Old 09-04-2012, 07:19 PM   #13
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You said breakers tripping, The "theory" behind using the 50 amp adapter is better wireing on the 50 amp outlet, Likely a false theory as the wires are often the same but the outlet may be better.

That said Many RVers have a few screws loose, I tightened one of the screws in my power distribution panel (Breaker box) over 2 full turns before it started to offere resistance... NOTE do this when not plugged and not running generator.

Generator breakers will trip, generator off, just from bouncing down the road.
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Old 10-10-2012, 02:55 PM   #14
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I have a 2012 sunstar and it has a 50 amp service. Why do you need a 30 amp
adapter? Just plug in the 50 amp cord.
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