Question about Emerson MW8627W Microwave Oven

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Need small microwave for inverter on houseboat

I am trying to find a small microwave oven that will run off of my 2300 watt continuous and 4,000 watt peak modified sine wave inverter. Can anyone help me with this.

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Look at the rating sticker on the oven and use the AC power rating as your guide. The cooking power of the oven is not important, but the power it needs from the AC supply is. Voltage times current is the supply power needed (watts), and you want an oven that will draw less than the inverter's continuous rating, less any power being used by other appliances.

For instance, a microwave rated for 120 volts AC at 10 amps needs 1200 watts. Your inverter would be OK with this as long as other devices aren't using more than another 1000 watts. You can't use the inverter's peak rating. That's only for brief bursts, like when the microwave first kicks on and draws some extra current.

Any mid-power (600 watts or so) oven should be OK.

Posted on Apr 16, 2009

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I have a 2500 watt cobra inverter and I'm trying to get my 700 watt microwave to work but it keeps poping the breaker and shutting off Not sure why


Instantaneous surge current can trip the breaker. You need to look at the data plate on the oven to see what the actual draw off the mains is. 700 watts of microwave power is NOT the amount of power drawn when it starts. You have the fan motor and the tray rotator motor to deal with when calculating the correct size of inverter to use with it.

Sep 21, 2016 | Microwave Ovens

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On model mw8626w can i use it in my semi with a 1000 watt inverter?


Take a look at the oven's electric rating information. It should be on the label with the model and serial number, and it will tell you how many amps the oven needs. Power in watts is volts times amps, so a 1000-watt inverter is good for about 8 amps at 120 volts output. Some inverters also use a peak rating, meaning power than can be delivered for a short time. The continuous power may be less than that; you'll need to look at the inverter. As long as the power needed by the oven is within the inverter's ratings then you'll be able to use it. Otherwise you'll need to shop for one with more output power.

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We put a plastic jar with a very small piece of foil on the rim and the microwave started to smoke. it might have run 30 seconds before we noticed it making a funny noise. it is a 1200 watt inverter


Hello Dwight,

You may have damaged the microwave. Since the oven cavity is a tuned cavity, introducing metal into it can wreck havoc on the magnetron (microwave generator itself).

Did you happen to notice if the smoke was from the plastic jar (plastic heating up from the high temp of the foil ring), or if it was the actual microwave smoking (and not blowing smoke out of the oven cavity from the plastic jar)?

Sep 14, 2010 | Panasonic MCM INVERTER

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Panasonic 1200 watt microwave shuts down in 10-15 seconds


Check the door switches to make sure they are not faulty, otherwise it may be the inverter.

IS the microwave in a cavity? If so, you need to have at least 15cm (6in) space above the microwave, 10cm (4in) behind the microwave, and 5cm (2in) on either side, as the latest Inverter microwaves run very hot and need a lot of ventilation.

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Error F7


Microwave will not operate (cook). F7 error code
appears on the display.
Electrical circuit interruption between L1 and Neutral in
the microwave inverter circuit.
Possible reasons:
1. Check door, hinge and cavity front alignment and adjust
as needed.
2. Check the operation of all interlock switches.
3. Check over temperature protector for the magnatron.
4. Check all Cavity Thermostats for closed circuit.
5. Unplug the oven for at least 40 seconds. If this solves
the problem
A. Check the Cooling Fan for proper operation or
blockage
B. Check the resistance of the magnetron thermostat.
It should be 0 Ohms, replace if necessary.
6. Check that the control cable to the 1100 watt inverter
is properly connected to plug P2 on the display PCB
& Adjust or Reconnect
7. If interlock switches operate correctly, replace 1100W
inverter.
8. If problem persists, replace control assembly.

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I had to buy a 2000 watt inverter type to run mine

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Inverters / Microwaves


A pure sine wave inverter will usually allow a microwave to run quieter and cooler and more efficiently all around.

So the oven has 850 watts of cooking power?

That would mean its power consumption could be as high as 1700W while cooking, but it could surge or spike higher when it first turns on due to the inductive load it offers.

I would think a 3000W inverter should handle that, but that also depends on its peak surge wattage.

As long as the microwave works properly in a normal wall outlet, I'd say maybe it's too much for this inverter and I'd check back with the dealer on this for his input.

Bottom line: Make sure the oven works well in a wall outlet, and check your inverter's peak surge rating.

We're happy to help and we appreciate your thoughtful rating of our answer.

Apr 11, 2008 | Microwave Ovens

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