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Open Roads Forum  >  Truck Campers

 > Generator? Won't run Microwave

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Raften

Northern Calfornia

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Posted: 02/22/12 04:18pm Link  |  Print  |  Notify Moderator

The breaker is switched on, right?

sleepy

Oak Ridge,Tennessee

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Posted: 02/22/12 08:46pm Link  |  Print  |  Notify Moderator

When I read the original post (noval idea)... it seemed to me that the generator was running... so the starter must be working... which would mean the gears are OK...

The OP says his microwave wouldn't run... not even the clock

So again... why bring up gears?

even the title of the thread...

> Generator? Won't run Microwave

Must be meaningful...

Maybe I'm not aSleep yet!


2003 Lance 1161,/slideout/AGM batteries/255W Solar/propane generator/Sat dish/2 Fantastic Fans/AC/winter pkg
AirFoil, Trimetric, LED lights, Platcat vent heat

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sleepy

Oak Ridge,Tennessee

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Posted: 02/23/12 03:38am Link  |  Print  |  Notify Moderator

Lets see... from what I'm reading... at least one of our responders writes the microwave won't work because of the gears in the running generator that has all of the 110V AC recepticles that it feeds functioning.

I give up...

Jim, please come back... explain all of this to me...

* This post was edited 02/23/12 12:22pm by an administrator/moderator *

SCVJeff

Santa Clarita, CA.

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Posted: 02/23/12 12:23am Link  |  Print  |  Notify Moderator

Maybe I'm missing something, but AC is AC. It doesn't matter if hot and neutral is reversed or the ground is lifted, or both at the same time (to the MW, obviously dangerous). the microwave just doesn't care. Voltage isn't going to affect it either unless the voltage is probably 95V or less, or maybe higher than 135, but I doubt the clock won't work on over voltage since it's regulated.

What's left is frequency that several have mentioned. That clock locks accuracy to the 60Hz input to keep time, and may very well not display at all until it gets a reference. This is not a frequency locked generator, and the OP did mention that it speeds up.. Question is by how much and whats the resulting frequency? That's all that's left... There are DVM's that have frequency measurement, Amp Clamps, Plug-in AC monitors, etc. THAT's the next test.


Jeff - WA6EQU
'06 Itasca Meridian 34H, CAT C7/350


wnjj

Cornelius, Oregon

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Posted: 02/22/12 09:50pm Link  |  Print  |  Notify Moderator

sleepy wrote:

When I read the original post (noval idea)... it seemed to me that the generator was running... so the starter must be working... which would mean the gears are OK...


Not necessarily. A working starter must engage the gears, crank over, then disengage. The discussion above was suggesting the third one may not be functioning and can affect the electrical output. This affected output could easily prevent "smart" electronic devices from operating, even the clock.

Just because something is running, it doesn't mean it's working.

wnjj

Cornelius, Oregon

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Posted: 02/23/12 08:56am Link  |  Print  |  Notify Moderator

SCVJeff wrote:

Maybe I'm missing something, but AC is AC. It doesn't matter if hot and neutral is reversed or the ground is lifted, or both at the same time (to the MW, obviously dangerous). the microwave just doesn't care. Voltage isn't going to affect it either unless the voltage is probably 95V or less, or maybe higher than 135, but I doubt the clock won't work on over voltage since it's regulated.


Read my post from a couple of pages back. I had the same conclusion until another member pointed out to me that some devices detect polarity on purpose and prevent operation (of everything, including a stupid little clock). This can be done with a simple detector between ground and neutral. It's also entirely possible that the microwave dectects a very specifc voltage range to prevent too high of a current demand from an under voltage condition. Yes this seems unlikely for a lowly little microwave but something's causing it to not work from a power source that runs other things ok (except the A/C unit--big clue there).

But again, the OP already confirmed the polarity is ok.

mkirsch

Rochester, NY

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Posted: 02/23/12 12:30pm Link  |  Print  |  Notify Moderator

sleepy, you clearly refuse to comprehend, so there is no point in trying to explain it further.

It's all magic, okay?

Besides, it was highly unlikely to be the cause. The engine would chew up the starter in a few minutes, and it would not start the next time.


2002 Chevy 3500 DRW/8.1/Allison & 2000 Palomino B1500 popup TC

-Yes, I haul a popup with a dually. No, I don't think I need a dually to haul a popup.

SCVJeff

Santa Clarita, CA.

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Posted: 02/23/12 12:10pm Link  |  Print  |  Notify Moderator

wnjj wrote:

SCVJeff wrote:

Maybe I'm missing something, but AC is AC. It doesn't matter if hot and neutral is reversed or the ground is lifted, or both at the same time (to the MW, obviously dangerous). the microwave just doesn't care. Voltage isn't going to affect it either unless the voltage is probably 95V or less, or maybe higher than 135, but I doubt the clock won't work on over voltage since it's regulated.


Read my post from a couple of pages back. I had the same conclusion until another member pointed out to me that some devices detect polarity on purpose and prevent operation (of everything, including a stupid little clock). This can be done with a simple detector between ground and neutral. It's also entirely possible that the microwave dectects a very specifc voltage range to prevent too high of a current demand from an under voltage condition. Yes this seems unlikely for a lowly little microwave but something's causing it to not work from a power source that runs other things ok (except the A/C unit--big clue there).

But again, the OP already confirmed the polarity is ok.
Exactly

halibutman214

Oregon

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Posted: 02/23/12 01:33pm Link  |  Print  |  Notify Moderator

I really really wanted to know what was causing this very interesting problem but now am not so sure I want to know at all.


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srl520

Henderson

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Posted: 02/23/12 04:43pm Link  |  Print  |  Notify Moderator

To clarify, the starter engages and disengages when it is suppose to. There is no problem with the starter.
I will call Johnny Walker RV see what they say.


2006 Kodiak 4500 4x4.
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