Question about Sharp R-1200 Microwave Oven

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No Power & No Lights

I have power at my 110 outlet, disply not working, no power and no lights. Can this be a dead fuse inside?

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Re: No Power & No Lights

Thanx, it was the power board! Will keep you in mind.........

Posted on Mar 19, 2007

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Re: No Power & No Lights

It may be a bad fuse inside or it could be blown circuit protection on the control board caused by a power surge. The former you or a friend can fix, the latter we repair nationwide for only $39.95. We have free service manuals available for download on our site for the Sharp R370 and R630 models which are similar types. If you or a friend decide to work on it, we have *critical* safety and disassembly info at our site, which is linked at our listing here on FixYa:

Posted on Feb 28, 2007

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The control panel of microwave dead. No lights on the panel. There is power to the outlet

If it worked after unplugging and reinserting, it is possible that there is a wiring problem with the plug and wiggling the wires "re-made" a connection. Try plugging in to another outlet to eliminate a dodgy outlet problem.

Mar 26, 2015 | GE Microwave Ovens

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Hi I have a Samsung SMH9187 micowave that is dead (no display, light, fan, mirowave).

Sounds like the main fuse blew. It's either near where the power cord enters the cabinet, or behind the control panel (if an over the range unit).

You may also have some type of failure in the high voltage circuit; based on your description of the symptoms.

Aug 16, 2014 | Samsung SMH9187ST Microwave Oven

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No power... No lights or Fan. The 110 outlet has power. I tested it. The display is blank. I have unplugged the microwave but I had the same results. Is there a fuse in the microwave?

Most microwave ovens do have a line fuse. I can't be completely sure if your does, since you did not supply a model number. If the cover is removed, the fuse should be close to the power cord. Hope this helps you.

Mar 13, 2011 | Whirlpool Microwave Ovens

1 Answer

No lights - no power - DEAD! Worked fine an hour earlier now ... nothing. Check fuse in mains box - all OK - tried it plugged into another outlet... nothing.

Your unit is dead, mains are good, tried in other receptacles, still no power. You have a bad fuse inside the unit. Unplug. Remove the cover. Generally this requires removing all the screws on the back perimeter and lifting the cover up. Sometimes they stick due to old grease, etc. Somewhere in the area of where the power cord comes in or near the transformer there should be a small fuse in a holder. It is not a glass fuse and should be replaced with the same kind (ceramic) and value. This is important for future protection. You can get the fuse at . Get a box of five for future problems. If this was the only problem your microwave should work. If it blows the new fuse you could have a shorted power transformer, bad high voltage diode, or a bad magnatron in that order. There could also be a short in the board with the display but that would be unusual. Let me know if you need anymore helpl


Thanks for using FixYa

Feb 26, 2010 | GE Microwave Ovens

1 Answer

RCA Model RMW700 micorwave 1 yr old stopped working. No power, yet the outlet is live. No power to the display, no light inside, just dead. Stopped working when heating cold cup of coffee.

There is a fuse inside the cover of the microwave. You will need to remove the outer shell and follow the power cord you will see an inline fuse. This fuse can be purchased at any appliance parts house.

Hope this helped


Jan 19, 2010 | RCA Microwave Ovens

1 Answer

No Power

HI, there is a inline fuse located inside the microwave ion the power supply board. check for continuity. replace the fuse if necessary. if the fuse is OK, replace the power supply board.

Jun 01, 2009 | Kenmore 62702 Microwave Oven

1 Answer

Dead microwave oven

If you have a multimeter and are comfortable with testing "live" circuits, measure to see if there is voltage from chassis ground, to both ends of the fuse, or to each wire connection on the fuse holder.If no voltage, then the problem is very likely the wall plug does not have power (could be a wire broke inside the wall box.).

If there is power, chances are there is a controller board problem. You should have seen a wiring diagram/schematic when you disassembled to replace the fuse.

Jan 20, 2009 | Microwave Ovens

1 Answer

Sharp Carosel R-1481 (no B) & 950 Watts

All MW has a fuse inside to protect the circuit board
Try to replace the fuse

May 10, 2008 | Sharp R-1481B Microwave Oven

2 Answers

Microwave stopped working

Generally, you get something unless the fuse inside is blown. There is generally a fuse inside the unit when you remove the button package. First, make sure that the outlet you have is good. Plug something else into it and see that it works.

Dec 16, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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