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Old 11-28-2020, 02:30 PM   #1
Dgarcia
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Power surge fried some stuff!

Hey all,
Only a month in to fifth wheeling life and purchased a surge protector on amazon. While I was waiting for it to arrive I got a power surge and now my slide, washer /dryer(which smelled like electrical burn when it happened) and leveling jacks donít work. I tried to disconnect power from the rv park Iím on and run on battery but that is not working either. I assume washer machine probably got mother board fried but Iím curious about slide outs, jacks, and battery power. I found the fuses for jacks and they are intact but I canít find fuses for slide outs. Any ideas? I have a 2020 Montana high country 362rd
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Old 11-28-2020, 03:16 PM   #2
sourdough
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First, hopefully you have ordered an EMS from Amazon and not just a surge protector - you need the EMS.

As far as the damage begin at the beginning. You had an AC power surge. That runs all of your AC appliances etc. and powers your converter which augments/charges the batteries for your DC applications.

Check the power cable to make sure it didn't get fried on either end (or the power ped). Check the power panel for thrown breakers (main or others) or any lit 12vdc fuses.

You need a VOM or test lights to see where you do and don't have power (AC or DC). I assume you have unplugged the washer/dryer, if not do so. It could be blown fuses (panel, converter, batteries?) or a fried something somewhere. Power can do some really crazy stuff.
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Old 11-28-2020, 03:58 PM   #3
steiny93
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Silly question, how do you know it was a surge vs say a failure of the invertor / transfer / etc?

It is odd that the 12volt features not working (slides / jacks). Be worth a look to see if they are getting power from the batteries. Does your rig have any power distribution device on the 12 volt side? I'm not aware of one on the Montana's but the new ones could be different.
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Old 11-28-2020, 07:11 PM   #4
Dgarcia
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Good questions

Well Iím not 100% sure exactly what happened. I was emptying out my black tank when I heard a crackling/sizzling sound from the power supply from rv park. I ran inside and smelled the electrical burning smell coming from my washer machine. As far as I know everything inside works just fine. Iíve checked the fuses inside and even checked the fuses for my jacks and all are intact. Maybe a dumb question but is it a converter or inventor that could be blown out? Iím not sure where it would be, Iíve looked online at what it looks like and canít seem to find that anywhere.
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Old 11-28-2020, 08:11 PM   #5
sourdough
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What was the "power supply" - a transformer? "Everything inside works just fine"? You need to do some trouble shooting. Guessing is a bad idea.

Batteries can power low level power users but when you get to slides etc. that require lots of amps the batteries need to be fully charged and backed up by a fully functioning "converter" (120vac to 12vdc). I have an inverter (12vdc to 120vac) to power my residential fridge.
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Old 11-28-2020, 09:18 PM   #6
Dgarcia
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Sorry Iím horrible with technical lingo. I just plugged in to the 50 amp service at an rv park. I guess what I meant with everything inside being fine is that everything is working. I unplugged from the parks power to try and run on battery but nothing worked when I did that. I have been trying to get a mobile rv repair here but not best timing with thanksgiving weekend. I am living in this currently so Iím just trying to do what I can to get thru weekend. Iím handy but not with electricity at all ha...give me a hammer and saw....but donít ask me to use a voltmeter haha
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Old 11-29-2020, 08:34 AM   #7
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Originally Posted by Dgarcia View Post
Sorry Iím horrible with technical lingo. I just plugged in to the 50 amp service at an rv park. I guess what I meant with everything inside being fine is that everything is working. I unplugged from the parks power to try and run on battery but nothing worked when I did that. I have been trying to get a mobile rv repair here but not best timing with thanksgiving weekend. I am living in this currently so Iím just trying to do what I can to get thru weekend. Iím handy but not with electricity at all ha...give me a hammer and saw....but donít ask me to use a voltmeter haha
Leave the power cord plugged in. Sounds like your battery is dead. I would take it out and have them checked. if you have 2 then take both. Unhook positive post first. If you have 12 volt lights working than the inverter is ok. The slides will work off the inverter. If you go to where the battery is and it smells like rotten eggs than battery is junk. If you have 2 batteries than both are junk. The longer you own a RV the more handy you will need to become. LOL
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Old 11-29-2020, 10:15 AM   #8
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[QUOTE=Dgarcia;1205176........
I’m handy but not with electricity at all ha...give me a hammer and saw....but don’t ask me to use a voltmeter haha[/QUOTE]


Unfortunately a voltmeter and electrical knowledge is what it is going to take to find the problem area(s). Best wait for the mobile repairman.
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Old 11-29-2020, 11:02 AM   #9
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Originally Posted by Slow Hand View Post
Leave the power cord plugged in. Sounds like your battery is dead. I would take it out and have them checked. if you have 2 then take both. Unhook positive post first. If you have 12 volt lights working than the inverter is ok. The slides will work off the inverter. If you go to where the battery is and it smells like rotten eggs than battery is junk. If you have 2 batteries than both are junk. The longer you own a RV the more handy you will need to become. LOL
The converter provides 12 volts from shore power to charge battery bank and run 12 volt systems. Your inverter converts 12 volt battery power to 110 ac to run your 110 volt systems when not connected to shore power.
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Old 12-04-2020, 04:08 PM   #10
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Follow the Red (positive) cables from the battery(ies). You are looking for a fusible link. On my old coach (not a Montana) I had one about a foot up the cable from the battery. If it is blown, you would not be getting 12V power to the hydraulic pump which controls your slides and such. The converter could still be providing 12V to your interior lights and such, but the battery(ies) would not be charging.
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