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Old 05-18-2022, 07:30 PM   #1
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220v big mistake

An electrician put in 220 volt power by mistake and we plugged into it our 2013 jayflight. We are new to RVing so anything we should check? So far fridge microwave, outlets, jacks, ac all work. We have to replace fan on breaker box and tv/ stereo box not working. Any other suggestions please?
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Old 05-18-2022, 07:37 PM   #2
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Electrician? Is your camper 30 amp? If he wired your 30 amp 220, he is really messed up. 50 amp has 4 wires, 30 amp has 3.
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Old 05-18-2022, 07:55 PM   #3
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Is it still putting out proper voltage to charge the battery? If that is all that is wrong, I would be buying a lottety ticket.
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Old 05-18-2022, 08:24 PM   #4
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Yes, before you plug it into anything again, have an EMS in line to (hopefully) protect you from miswiring, surges, brownouts, etc.

Get a book on basic electrical wiring. You don't need to be an expert or do your own wiring, but it will help you to know what wiring you need, what problems to avoid, and also help you know when a contractor is full of beans.
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Old 05-18-2022, 08:56 PM   #5
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We’re still checking things. Haven’t checked the batteries yet. We do feel lucky
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Old 05-19-2022, 05:17 AM   #6
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I agree with CK on the EMS. It'll save the unit from further damage. I'd get it plugged into a 30 amp circuit with an EMS and test everything. Run it like you're camping for a week. Run the AC, run the heat. Make sure the HWH and TV's are working. Also check the water pump and make sure it's good. Good call on the batteries. See if they get hot while plugged in. The damage may be isolated to what you've found already. Hopefully, that's the case.
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Old 05-19-2022, 06:11 AM   #7
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Anytime you hire an electrician to do work on your rv, be sure and ask if he is familiar with the requirements and procedures for rv's and specifically the difference between 30a and 50a. Sadly many don't know much past the pedestal if that. Always check before using your rig as a fuse to check out the new power supply!

If one screwed it up he should be liable.
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Old 05-19-2022, 07:24 PM   #8
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I hope the Electrician had insurance
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Old 05-19-2022, 08:17 PM   #9
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Fan on breaker box?
Good chance your converter fried I would think.
Check water heater electric, TV ant booster, any USB outlets you may have.
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Old 05-20-2022, 06:38 AM   #10
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Don't operate any slides, awnings, or the like with the batteries disconnected. The first thing I would do is disconnect the battery and check out the 12 volt system while on 120 volt shore power. Your converter either works or it doesn't. The 120 volt appliances operate on the breaker box part of the converter (unconverted). The breakers operate on amperage, not voltage (probably up to 400 volts). I would "exercise" each breaker to ensure that they are in the closed position. Your 12 volt fuses in the panel will probably glow if blown, making it quick and easy to spot them, unless any have been replaced with the other type of fuses.
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Old 05-25-2022, 08:00 PM   #11
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Quote:
Originally Posted by Kpduties8 View Post
An electrician put in 220 volt power by mistake and we plugged into it our 2013 jayflight. We are new to RVing so anything we should check? So far fridge microwave, outlets, jacks, ac all work. We have to replace fan on breaker box and tv/ stereo box not working. Any other suggestions please?
50 amp RV outlets are 220 volt nothing to worry about.
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Old 05-25-2022, 08:05 PM   #12
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50 amp RV outlets are 220 volt nothing to worry about.
Their rig was a 30-amp unit, the electrician must have wired it like older 3-wire 220-volt dryer or welder connection. Very, very bad for a 30-amp 120-volt rig!
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Old 05-25-2022, 08:07 PM   #13
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Have the “electrician” get his insurance company to notify a dealer and have them go over everything inch of the rv
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Old 05-25-2022, 08:59 PM   #14
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Their rig was a 30-amp unit, the electrician must have wired it like older 3-wire 220-volt dryer or welder connection. Very, very bad for a 30-amp 120-volt rig!
Yep, the three prong the electrician wired was evidently two hots and a ground 220-240v, instead of one hot, neutral and ground, 110-120v.
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Old 05-26-2022, 04:51 AM   #15
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50 amp RV outlets are 220 volt nothing to worry about.
The RV is not 220. 50 amp RV service is 2 completely separate hot legs of 120 each. So in a sense there is a total of 220 volts running to the camper but separated. Combining them at any point IS something to worry about....
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Old 05-26-2022, 07:22 AM   #16
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The RV is not 220. 50 amp RV service is 2 completely separate hot legs of 120 each. So in a sense there is a total of 220 volts running to the camper but separated. Combining them at any point IS something to worry about....
Look at 240 volt outlet configurations. You should not have been able to plug your 120 volt 30 amp plug into it. There was more than just a misunderstanding about what you wanted. There was improper wiring that allowed the screw-up.
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Old 05-26-2022, 09:05 AM   #17
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The RV is not 220. 50 amp RV service is 2 completely separate hot legs of 120 each. So in a sense there is a total of 220 volts running to the camper but separated. Combining them at any point IS something to worry about....
You do not combine the two legs to get 220V you get 220v by measuring across the two hot legs. measure across the two hot legs of any 50A rv outlet and you will have 220V
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Old 05-26-2022, 09:52 AM   #18
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You do not combine the two legs to get 220V you get 220v by measuring across the two hot legs. measure across the two hot legs of any 50A rv outlet and you will have 220V
If you split a 4 prong 220 you get two hot legs (red&black)of 110 each, that's how it works. 50 amp is 220 or 240 with two hot legs, a neutral (white) and a ground (green). Black,white and green =120, red,white and green=120. A 50 amp rv service is simply two banks of 120 @ 50 amps (6,000 watts)per bank. A 30 amp is a single bank of 120 @ 30 amps (3,600 watts). There is nothing in your 50 amp rv excepting the rare case of a 240v dryer connection which can withstand 240v. and certainly nothing in a 30 amp.
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Old 05-26-2022, 10:56 AM   #19
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As a licensed electrician I have to tell everyone there is no such utility voltage of 220 in the united states. Residential utility voltage is 120/240v single phase.
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Old 05-26-2022, 11:15 AM   #20
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As a licensed electrician I have to tell everyone there is no such utility voltage of 220 in the united states. Residential utility voltage is 120/240v single phase.
Split phase
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