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07-04-2018, 01:32 PM
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#1
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Junior Member
Join Date: Jul 2018
Posts: 7
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Ac Unit not working
While putting batteries back into coach after winter storage and crossing terminals positive to negative the air conditioning stopped working. The thermostat controls wont light up.
On a second time crossing the batteries the refrigerator panel wont turn back on. So refrigerator doesnt work.
Thinking blown fuses?? Have checked all of the breakers and all of the fuses in the motorhome. Are there any hidden areas for fuses??
Thank you so much!!
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07-04-2018, 01:36 PM
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#2
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Senior Member
Join Date: Jul 2012
Posts: 2,565
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How about the converter protection fuses? 30 or 40 AMP. they are large in size!
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07-04-2018, 01:39 PM
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#3
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Junior Member
Join Date: Jul 2018
Posts: 7
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Unfortunetly the inverter converter has been out for awhile and we had it wired direct.
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07-04-2018, 01:46 PM
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#4
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Senior Member
Join Date: Jul 2012
Posts: 2,565
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That may not be good. Some things don't like reversed polarity. Motors ok, but some electronics like control boards, no. Sorry I can help for this.
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07-04-2018, 01:46 PM
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#5
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Senior Member
Join Date: Jul 2014
Posts: 35,444
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If you have the inverter/charger out, what is keeping your batteries charged ?
There may be a 2 or 5 amp fuse right on the fridge circuit board that failed.
The thermostat may be powered by the heater circuit, so you could look for a fuse there too.
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07-04-2018, 02:00 PM
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#6
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Junior Member
Join Date: Jul 2018
Posts: 7
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Thank you anyway!!
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07-04-2018, 02:04 PM
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#7
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Junior Member
Join Date: Jul 2018
Posts: 7
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We charge them with a charger when they get low. Pain, but it’s what we have to do for now. Just received the new converter yesterday. Still need to hook it up. That was a mess too, blew up our tv and oven. We will look into the other fuses and post what we find. Thank you for your suggestions.
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07-04-2018, 03:19 PM
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#8
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,794
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Hi !  Welcome to IRV2! We're sure glad you joined the gang! 
Reversing polarity doesn't make any difference on some things, but on others it can cause severe damage. Other than checking fuses I don't know what to suggest.
Good luck, happy trails, and God bless!  
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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07-04-2018, 04:35 PM
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#9
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Senior Member
Join Date: Mar 2017
Location: Zebulon, NC
Posts: 5,211
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Welcome to the forum. We are sorry that it took a problem for you to join us, but we hope that you will stay engaged after you have a resolution.
__________________
Kelly and Jerry Powell with Halo (Lethal White Aussie), Nash the Rat Terrorist, and now Reid, the "Brindle we have no idea puppy"
2020 Grand Design Solitude 390RK-R
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07-04-2018, 06:26 PM
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#10
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Junior Member
Join Date: Jul 2018
Posts: 7
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We will just have to keep looking. Our inverter converter has been out for 3 years now. We also had our rv in storage which is something we never do and thats when things started getting worse. Thank you so much for the warm welcome!! 🤗
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07-04-2018, 06:28 PM
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#11
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Junior Member
Join Date: Jul 2018
Posts: 7
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The refrigerator only has a circuit board no switches or anything. We will check the unit itself. Thank you all.
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07-04-2018, 06:37 PM
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#12
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Senior Member
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,465
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I'm with those who suggest that you have blown control boards rather than a hidden fuse.
__________________
Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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07-19-2018, 10:03 PM
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#13
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Junior Member
Join Date: Jul 2018
Posts: 7
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The refrigerator was fixed with a strong magnet and the ac was a blown fuse!
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