Microwave won´t run on inverter
Moderator: TechMOGogy
Microwave won´t run on inverter
I posted this also on the Yahoo group, hope you don´t mind teh repost here:
I have a ML1500-24, 24 Volt DC to 110 Volt AC power inverter, 1500 watts
continuous, 3000 watts peak installed in my Pinzgauer 712 camper, and enough power in my battery bank to run it. However, when I plug in the microwave (700 watts) not even the clock will come on. I understand the inverter puts out a square sinus curve. Could this be the problem? Any suggestions which brand of microwave to use?
Thanks in advance, Karl
I have a ML1500-24, 24 Volt DC to 110 Volt AC power inverter, 1500 watts
continuous, 3000 watts peak installed in my Pinzgauer 712 camper, and enough power in my battery bank to run it. However, when I plug in the microwave (700 watts) not even the clock will come on. I understand the inverter puts out a square sinus curve. Could this be the problem? Any suggestions which brand of microwave to use?
Thanks in advance, Karl
Modified sine wave inverters work with most appliances but not everything. I have a remotely controlled fan which started to melt the case when connected to my modified sine wave inverter. I stopped it before it did any damage. The price of a true sine wave inverter is usually significantly higher.
I haven't run my microwave off the inverter so I don't know if it would have the same problem or not. My refrigerator, TV and cable box work powered from it. You might want to try to run it (check the clock at least) connected to a UPS which you unplug from power. Unless you have a very expensive UPS it should do the same thing. It would take a substantial UPS to actually run a microwave oven so I wouldn't suggest you try to make popcorn.
Here is a link to additional information on the inverter's output: http://www.pcguide.com/ref/power/ext/up ... put-c.html
I haven't run my microwave off the inverter so I don't know if it would have the same problem or not. My refrigerator, TV and cable box work powered from it. You might want to try to run it (check the clock at least) connected to a UPS which you unplug from power. Unless you have a very expensive UPS it should do the same thing. It would take a substantial UPS to actually run a microwave oven so I wouldn't suggest you try to make popcorn.
Here is a link to additional information on the inverter's output: http://www.pcguide.com/ref/power/ext/up ... put-c.html
If you didn't get stuck, you didn't try hard enough.
'74 710K
1984 in 2009
'74 710K
1984 in 2009
-
- Posts: 155
- Joined: Sat Feb 21, 2009 10:25 pm
- Location: McKinney, TX
- Contact:
Karl:
I really don't know the reason why your microwave does not work. But let me ask you two questions:
Do other appliances or electronics work from the inverter?
Have you tested the MW any other place and verify that works?
If the two answers are yes, then I guess Russ is right on the money...
I really don't know the reason why your microwave does not work. But let me ask you two questions:
Do other appliances or electronics work from the inverter?
Have you tested the MW any other place and verify that works?
If the two answers are yes, then I guess Russ is right on the money...
CHACAOCOP
1973 712M
1973 712M
- Jimm391730
- Posts: 1456
- Joined: Wed Apr 14, 2004 10:58 pm
- Location: Idyllwild, CA
I'm using a 1500W Samlex modified sine wave inverter to run a small GE microwave. The only difference I've ever noticed is that the microwave sounds just slightly noisier when run from the inverter.
It must be the electronics in your particular microwave; the actual heating is powered through a "constant voltage" type of transformer that (for the most part) doesn't care how it is driven. But if the clock won't come on the electronics can't close the relay to power the unit. Microwave ovens are (now) cheaper than inverters; try a different brand. I looked for a unit that had the lowest kVA draw with a reasonable Wattage (1100 kVA input, 700 watts heating) to keep from draining batteries as quickly.
Jim M.
712W and 710M
It must be the electronics in your particular microwave; the actual heating is powered through a "constant voltage" type of transformer that (for the most part) doesn't care how it is driven. But if the clock won't come on the electronics can't close the relay to power the unit. Microwave ovens are (now) cheaper than inverters; try a different brand. I looked for a unit that had the lowest kVA draw with a reasonable Wattage (1100 kVA input, 700 watts heating) to keep from draining batteries as quickly.
Jim M.
712W and 710M
Karl, Is there a possibility of some sort of mismatch in CPS (cycles per second)? In Europe (perhaps elsewhere)50cps seems the norm,and in US 60 is the favorite flavor. Just a thought,maybe there may be a mismatch between your inverter and your m-wave.
Your avitar pic looks great,please share some photos!
Mark
Your avitar pic looks great,please share some photos!
Mark
Stock means no imagination!
Volvo TGB1317, .95% Morphed!
68 Haffy
Volvo TGB1317, .95% Morphed!
68 Haffy