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Old 12-09-2016, 05:47 AM   #1
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Microwave started working driving down the road

When shore power is used, microwave fine. Won't work w/generator. After camping in Metropolis IL this week, leaving the park and driving home, my wife heated up something for me. Asked her how she got it warmed...microwave worked all the way home. No, generator wasn't on...I thought they were 120V only...any idea what happened?
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Old 12-09-2016, 05:52 AM   #2
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I'll take a guess that the inverter was on.
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Old 12-09-2016, 06:03 AM   #3
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I'll take a guess that the inverter was on.
But none of the other outlets were hot
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Old 12-09-2016, 06:11 AM   #4
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If none of the other outlets were hot that normally are hot when the inverter is on than you have tripped a circuit breaker on the inverter. That needs to be reset for the outlets to be hot.

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Old 12-09-2016, 06:21 AM   #5
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On our previous redwood 5er, the MW would come on @ random, even while unplugged and going down the road!!!
Most others decided to unplug them when not in use, some got them replaced by the mfg, I just plugged it into a power strip where we could turn it on and of easily...

one of the many pleasures of THAT Thor product
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Old 12-09-2016, 06:35 AM   #6
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When shore power is used, microwave fine. Won't work w/generator. After camping in Metropolis IL this week, leaving the park and driving home, my wife heated up something for me. Asked her how she got it warmed...microwave worked all the way home. No, generator wasn't on...I thought they were 120V only...any idea what happened?

Magic???

Seriously, it HAD to be getting 110 volts from somewhere. If the generator was off, the ONLY place it could be getting it would be from an inverter. That being said, you have a pretty good inverter to run a microwave!
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Old 12-09-2016, 08:59 AM   #7
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I'll take a guess that the inverter was on.
My guess too. that's how my coach is wired.

NOTE: recently I had a camper come to me "Half my outlets (Including TV an MIcrowave) are not working.

I ask if he had an inverter (he did not know)
Found it on the 2nd try.. Sure enough one of the circuit breakers on the inverter was OFF..

You need to find it.. RV's with inverters are wired in one of two.two different ways

One: Mine: the circuit breakers are "elsewhere" (a second "Sub" panel and yes I know where it is) if the Microwave trips the breaker, or I overload the "Entainerment" circuits or the Kitchen, this is where the breakers are.

Two. point one On the inverter, The breakers on his Tripp-Lite were like the ones on my ONAN generator (On/OFF lever type) not like the Square D (on/Tripped/OFF) type. I just turned it back on.

Two point Two.. POST type breakers (Push to reset) often on the side or around back where you need a mirror and flashlight to see 'em.

THe name of the game in both Automotive and RV worlds is "Where can we hide it" don't you know.
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Old 12-09-2016, 12:32 PM   #8
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You could also have the situation where the inverter breakers are on but after the breakers there are relays used to switch between 120 from inverter or gen/AC (this is how mine is wired). Helped somebody who had outlets that would only work when plugged or generator was running but wouldn't work on inverter (some would, some wouldn't). Had some bad relays. Easy way to find them is get the coach quiet (and unplugged) and then have someone turn the inverter on and off over and over and walk around and listen for a "click". His were behind a hidden panel in the closet (which I found is where mine are too).
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Old 12-09-2016, 01:30 PM   #9
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I agree with Algonquin, and the others, you must have an inverter. However, I can't rule out the magical powers of driving the vehicle down the road. For many years, I repaired AV equipment for our school district. Tape recorders, 16mm projectors, slide projectors would be reported a not working. Plugging them in at school verified this. Putting them in the back of my little Honda Civic and transporting them to my house, they would suddenly be working when I got them on my workbench. Maybe your microwave is similar! (Find the inverter and look up how it works)
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Old 12-09-2016, 02:12 PM   #10
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On our previous redwood 5er, the MW would come on @ random, even while unplugged and going down the road!!!
Even while unplugged...... that would be a first. How does a microwave turn itself on if even while unplugged ? Were you anywhere near Devil's Tower ?
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Old 12-09-2016, 03:19 PM   #11
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AH - good catch - ambiguous unplugged
meant unplugged from shore power outside,
but still plugged in inside into the 5'er's internal outlet..
and I did have a res fridge in it so an invetor was part of the pkg

it definitely was a mw mfg's fault ...
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Old 12-09-2016, 03:33 PM   #12
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Have you verified that you unplugged from shore power?
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Old 12-10-2016, 03:28 PM   #13
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Have you verified that you unplugged from shore power?
Haha...I was about 30 miles from shore...don't have that long of cord!!! But I have done that before and had to rewired the a new plug!!!
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Old 12-10-2016, 04:42 PM   #14
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This is getting funny. Hope the OP finds the problem/magic.
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