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08-16-2018, 09:40 AM
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#1
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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2010 Discovery 40x inverter question
Like the title says. I have 2 2000 magnum inverters. 1 with 4 batteries for the house and 1 with two batteries for the residential fridge. The fridge inverter needs to be removed for repair per trouble codes. It trips for no apparent reason and needs to be reset. When it trips no power to the fridge. Coach is in a park 300 miles away.
Can I remove the inverter, disconnect the batteries and connect the 110v input to the output to feed power to my fridge while the inverter is removed? Thanks in advance JD
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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08-16-2018, 11:09 AM
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#2
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Jul 2018
Location: Cumming, GA
Posts: 181
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Don't know how old this questions is, What is tripping? a breaker or GFCI receptacle on the inverter? The park doesn't have shore power? What is required to run the fridge, 120VAC or 12VDC? If you properly ground your inverter and don't over load it, i.e. keep it cool, will it still trip? 2000 watt inverter at 120VAC = 16.6 amps total, with loses and power factor of .9 = 14.9 amps available. The 12VDC side will draw 166.6 amps at full load. you must have a big fridge or a poor battery charger. We are talking about an Inverter = 12VDC to 120VAC as apposed to a Converter = 120VAC to 12VDC? Look at the AH (amp hours) on the batteries, are you exceeding that?
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08-16-2018, 11:51 AM
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#3
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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It is magnum 2000 inverter/ charger. Factory residential fridge 120vac. Coach is plugged up to shore power. Inverter off, just keeps batteries charged. Randomly shows fault on control panel and no pass through of 120vac. I just want to pull it out to have it repaired. While out I want to connect the 120vac input to the 120 output. Batteries are tested and good. Thanks
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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08-17-2018, 06:41 AM
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#4
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Jul 2018
Location: Cumming, GA
Posts: 181
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2010 Discovery 40X inverter
Your inverter has a 12VDC input that creates a 120VAC output. Just connect your 120VAC fridge to the shore power the camp site is providing. Then disconnect and remove your inverter for repair. I don't understand your needing to connect a 120VAC input to a 120VAC output, there isn't any logical with doing that , where are these inputs and outputs you are referring to? Just simple connect a zip cord to your fridge and plug it in to any AC receptacle, then disconnect your inverter from the battery. Disconnect the negative - cable first the disconnect the positive + cable, allow the capacitors to discharge, then remove your inverter. (Make sure you are confident that you have electrical power shut off and you have created a safe condition to do this work.)
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08-17-2018, 06:51 AM
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#5
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Senior Member
Join Date: Jul 2018
Posts: 3,165
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Quote:
Originally Posted by Hogbus
Like the title says. I have 2 2000 magnum inverters. 1 with 4 batteries for the house and 1 with two batteries for the residential fridge. The fridge inverter needs to be removed for repair per trouble codes. It trips for no apparent reason and needs to be reset. When it trips no power to the fridge. Coach is in a park 300 miles away.
Can I remove the inverter, disconnect the batteries and connect the 110v input to the output to feed power to my fridge while the inverter is removed? Thanks in advance JD
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Just plug the Fridge into any 110-volt working outlet with an extension cord and remove your inverter. First, what is tripping on the inverter? The GFI? You can replace that yourself. If it trips again, it is doing its job and the problem may be with the fridge. I would first swap out both inverters. see if the problem moves to the house power.
__________________
2011 Keystone Sprinter 323 BHS. Port Charlotte Fl/Hinsdale MA. Retired Master Electrician. All Motor homes are RV's. All RV's are not Motor homes.
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08-17-2018, 06:55 AM
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#6
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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My inverter charger has a 12v input,120 v input that when not inverting passes through to a 120v output that only supplies the fridge circuit. If I just plug not shore power with the inverter removed the fridge has no power.
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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08-17-2018, 07:39 AM
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#7
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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The inverter/charger has both a 120 volt input and output. When not inverting, or passes through to the circuit that only supplies the fridge. I can't hook an extension cord to the fridge without removing it. Thank for the help with other remedies but all I want to know is can I connect the input wire to the output wire to bypass the inverter/charger. I realize my batteries that only supplies the fridge will be offline. I have another inverter that supplies tv microwave etc when needed
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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08-17-2018, 02:06 PM
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#8
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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Would a moderator please move this thread to class a motor homes . Thanks. JD
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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08-18-2018, 05:25 AM
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#9
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Jul 2018
Location: Cumming, GA
Posts: 181
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Quote:
Originally Posted by Hogbus
The inverter/charger has both a 120 volt input and output. When not inverting, or passes through to the circuit that only supplies the fridge. I can't hook an extension cord to the fridge without removing it. Thank for the help with other remedies but all I want to know is can I connect the input wire to the output wire to bypass the inverter/charger. I realize my batteries that only supplies the fridge will be offline. I have another inverter that supplies tv microwave etc when needed
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Good morning Hogbus, your inverter type, sounds like a nice unit with features I'm not familiar with, however if you can safely wire the 120V input/supply voltage wires that go to the inverter to the output voltage wires that feed the fridge, externally from the inverter, why not? If your inverter has the feature of "pass through" you would just be doing the same thing with physical external connections. L1=Black L2=White and ground = green or bare copper. Please kill the power first, use good wire nuts and tape your connections. Good luck with this and I hope your inverter can be repaired at a fair cost. (I am going to research the Magnum 2000)
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08-18-2018, 05:36 AM
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#10
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Senior Member
Join Date: Jul 2014
Posts: 35,411
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Quote:
Originally Posted by Hogbus
The inverter/charger has both a 120 volt input and output. When not inverting, or passes through to the circuit that only supplies the fridge. I can't hook an extension cord to the fridge without removing it. Thank for the help with other remedies but all I want to know is can I connect the input wire to the output wire to bypass the inverter/charger. I realize my batteries that only supplies the fridge will be offline. I have another inverter that supplies tv microwave etc when needed
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Yes, of course you can. Get a electrical box for the connections for safety.
It would be like it wasn't there.
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08-18-2018, 08:48 AM
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#11
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,671
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Quote:
Can I remove the inverter, disconnect the batteries and connect the 110v input to the output to feed power to my fridge while the inverter is removed?
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Simple answer: YES. Plug to any convenient 120v outlet.
Whether your Magum inverter needs repair or replacement is a separate question. You didn't mention the fault codes, so we could only conjecture about that. Hopefully the repair shop can diagnose further for you.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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08-18-2018, 11:18 AM
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#12
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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Thanks everybody! If it can't be repaired it will be replaced. Fault code is a bridge code. Might just be a connection inside the converter box. The way it is mounted it needs to be removed to see. Access plate is inaccessible. Thanks again. JD
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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08-20-2018, 08:12 PM
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#13
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Senior Member
Join Date: Feb 2018
Location: Close to Charlotte, NC
Posts: 151
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Today I just got my primary Magnum ME2000 back from repair and it will soon be reinserted as the Fridge inverter. In the meantime, I moved the working Fridge Inverter in place of the primary inverter and wired the fridge inverter 120V input lines to the output lines for safety but left the fridge inverter circuit breaker OFF as it was not needed.
To get power to the fridge, beside the fridge but under the stove cabinet behind a louvered access panel in my 2011 Fleetwood Discovery 40X, there are two 120V outlets. One for the fridge, connected to the fridge inverter, and one for the ice maker connected to the primary inverter. The ice maker outlet isn't used by the residential fridge. I just moved the fridge plug 4" to the ice maker outlet. It does not overload the primary inverter provided I don't try to use too much power (microwave, frypan, toaster, etc.) at the same time.
The net result is that I was able to keep the fridge operational whether or not I was on shore power or inverter power for several weeks while the primary (now fridge) inverter was getting repaired.
When I reinstall the repaired primary inverter in the fridge inverter position all I need to do is move the fridge plug from the ice maker outlet back to the fridge outlet and turn the Fridge inverter circuit breaker back on.
By the way, the reason for the inverter failure was water damage to the inverter's FET board caused by the two battery/inverter air ducts that get air(, and unfortunately water as well) from the driver side wheel well. I will adding a filter to those two vents that will pass air but significantly block water entry to the battery/inverter basement enclosure.
__________________
Frank & Corrine Miller - 2011 Discovery 40X
380HP Cummins ISC 8.3L Engine, Freightliner XCM Power Bridge Chassis
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08-21-2018, 05:46 AM
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#14
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Jul 2018
Location: Cumming, GA
Posts: 181
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Hi Frank, thank you for this feedback. I'm very happy to hear your primary inverter was repaired and back up and running. It sounds like you have a good plan for reinstalling. The Magnum 2000 is an impressive inverter (High dollar) unit it has way more features than mine. I hope everything goes well for you moving forward, it's very important to have ice for the cocktails and very cold beer.
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