Question about Microwave Ovens

Open Question

Tappan microwave model TMS103T1B1

Quite working suddenly,no clock, no light , nothing. Breaker did not trip
and outlet is good.

Posted by on

  • 1 more comment 
  • callieann May 07, 2008

    i have this same problem with my tappen microwave it is a model TMV151FS it will heat something up for under 3:00mins but can't cook anything it will shut down for a while at least 45 mins then turns it self on i notice this just after the 30 day warrantry ran out

  • Melissa Mihalik Sep 07, 2008

    My Tappan Microwave Model TMV151FB quit working too. No light, no clock, nothing at all. It was new and installed in my house when we bought the house. I don't have the manual. We changed the fuse, but it still won't work.

  • retarny98 Jan 04, 2009

    microwave quit working, worked at first no heat but worked, then just stopped all together

×

6 Suggested Answers

MicrowaveSvc
  • 8820 Answers

SOURCE: LG microwave model MV1526B

The pop leads me to suspect that the high voltage rectifier diode blew.

We have the service manual for this model and have uploaded it to our site here to help you. You will need the free Adobe Reader to view or print it.

A microwave can be dead for many reasons.

It may be the fuse, which is usually located on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Aug 08, 2008

MicrowaveSvc
  • 8820 Answers

SOURCE: Sharp Microwave Model R-1830: No power

A microwave can be dead for many reasons.

It may be the fuse, which is usually located behind the grille or on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open oven thermal cutout (TCO) on the top of the oven cavity / body or an open thermal fuse on or above the magnetron.

These should read closed (virtually zero) on a continuity check.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it went dead or when you plugged it in or opened or closed the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

You can usually find exploded views and order parts by entering your model number here at the Sears parts site but the best place to order Sharp parts is Tritronics.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Oct 13, 2008

jmgldsmth
  • 1869 Answers

SOURCE: Kenmore over the range microwave 721.63684300 - nothing works

you must remove the MW take off the cover then look for a large metal can (capacitor) and a white (ceramic) fuse...look and, smell and, you should find the cause

Posted on Apr 22, 2009

  • 4 Answers

SOURCE: dead microwave

There are replacable fuses inside. Taking the microwave apart requires removal of a lot of screws and the cover that can be rather bulky. make sure it's unplugged and safe before you begin. you can get replacement fuses at radio shack, ect. be sure to buy the same type and amperage. if the blow a second time there may be other issues.

Posted on May 27, 2009

freetek
  • 5568 Answers

SOURCE: my microwave oven keeps tripping the circuit

If a fuse inside had blown, that would definitely reduce the current flow rather than trip the breaker.
I have replaced several breakers over the years; they no longer last forever.
Try your Amana on a different circuit, not in the kitchen; if that other circuit likes the oven, the breaker is bad. If the alternate circuit breaker also trips, then you have not a blown fuse in the Amana but rather a shorted component inside and repairing the oven will likely cost about the same as replacing it.

Posted on Nov 22, 2009

tbreeze47
  • 3083 Answers

SOURCE: my microwave quit working...all of

You're going to have to take the microwave apart to figure this out. There is a chance the fuse is bad, so check that first with a ohmmeter (make sure the capacitor is discharged- you can short the contacts with a screwdriver). Here is how to short the cap:
http://www.applianceaid.com/component.html
I looked around GE's website, and found that some people had a problem with a bad trace on the control board, and had to resolder it.
If you go to the following site, you will find some handy videos about troubleshooting your microwave:
http://www.ehow.com/how_4704737_fix-ge-spacemaker-microwave.html
Lastly, make sure the outlets are good- they could be on the same breaker, that could have tripped. Measure the outlets with a voltmeter on AC at least 200 volt range.
Good luck, hope this helps you, and thanks for using FixYa.

Posted on Sep 14, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Microwave clock and panel was lit in am wasn't used but in evening when went to use it isn't lit and won't work at all


Hello Anonymous

At the risk of starting with the very basics, when you say that the clock and panel aren't lit and wont' work at all, the first place to look is the wall power. You may be missing power from the wall because:
  1. The microwave isn't plugged in. Someone may have yanked a plug to plug in a mixer, phone charger, thanksgiving animated ornament, or what have you. Trace the cord back and make sure it's plugged in.
  2. Make sure the outlet has power. Take some plug-in-able item and plug to the outlet and see if it can turn on. If not:
  1. A number of kitchen outlets may have GFI switches, especially if they are anywhere near sinks. The GFI may have been tripped. There should be a reset switch in the middle of the plug. See if it's tripped, and reset if necessary.
  2. The breaker may have been tripped. Most kitchen circuits are wired to 20Amp breakers. If this is elsewhere in the house, like in an entertainment room or such, it is likely a 15 Amp outlet. Microwaves can draw a fair amount of power. Someone using another kitchen appliance, hair dryer, or what have you, on the same circuit, may have tripped the breaker. Newer code may specify an AFI or GFI breaker for kitchen outlets. In that case, a fault with something else on the circuit may have tripped the breaker. If that is the case, and it trips again, talk to an electrician. You don't want a fault like that undiagnosed.

    3) You may also want to try plugging the microwave into another outlet, even if the normal outlet seems OK

    If there's wall power and a good plug-in, then you work back to the microwave itself. A number will have fuses. Also, there may be interlocks that kick in if, for instance, the carousel rotation is impeded - that can mean something on the carousel is hitting a wall, which can risk tipping something over and spilling, or risk mucking up the reduction gears for the carousel axle if it keeps pushing.

    At that point, looking for specifics on your microwave model will be needed. You may also try the Microsoft Support approach - i.e unplug it for 5 minutes, then plug it back in and see if it works.

    Hoping this helps, Good Luck!

Nov 18, 2015 | In Microwave Ovens

1 Answer

No lights - Acts Like It Has No Power At All


see the diagram and pictorial and proceed with common sense:
1) test the fuse for open or band contact with VOM,see the diagram attached how to do it
2)check the switch door hook or door release button,when they are broken they do not touch the switch, and will NOT start. test for open
see the diagram
7_17_2012_12_56_50_pm.gif7_17_2012_12_57_31_pm.jpg7_17_2012_12_58_02_pm.jpg

Jul 16, 2012 | Microwave Ovens

1 Answer

The microwave is making a funny sound when turned on and it is popping the circuit breaker


try plugging it on another circuit with no load (a circuit with nothing els connected) if you have other things plugged with the oven (toaster, slow cooker, etc..) it could trip the circuit breaker as a microwave oven needs a 15 amps circuit to operate properly...

good luck!

Feb 22, 2011 | Tappan Microwave Ovens

1 Answer

Machine will not turn on


from online Microwave Repair Manual: Totally dead oven (no lights, no clock, no display, no fan, no heat...)First, check power to the outlet using a lamp or radio you know works. The fuse or circuit breaker at your service panel may have blown/tripped due to an overload or fault in the microwave oven or some other appliance. You may just have too many appliances plugged into this circuit - microwave ovens are high current appliances and should be on a dedicated circuit if possible. If you attempt to run a heating appliance like a toaster or fryer at the same time, you *will* blow the fuse or trip the circuit breaker. A refrigerator should never be plugged into the same circuit for this reason as well - you really don't want it to be without power because of your popcorn!

If you find the fuse blown or circuit breaker tripped, unplug everything from the circuit to which the microwave is connected (keep in mind that other outlets may be fed from the same circuit). Replace the fuse or reset the circuit breaker. If the same thing happens again, you have a problem with the outlet or other wiring on the same branch circuit. If plugging in the microwave causes the fuse to blow or circuit breaker to trip immediately, there is a short circuit in the power cord or elsewhere.

The microwave oven may be powered from a GFCI outlet or downstream of one and the GFCI may have tripped. (Removing a broken oven lamp has been known to happen.) The GFCI outlet may not be in an obvious location but first check the countertop outlets. The tripped GFCI could be in the garage or almost anywhere else! Pushing the RESET button may be all that's needed.

Next, try to set the clock. With some ovens the screen will be totally blank following a power outage - there may be nothing wrong with it. Furthermore, some ovens will not allow you perform any cooking related actions until the clock is set to a valid time.

Assuming these are not your problems, a fuse has probably blown although a dead controller is a possibility.


While you can do some repairs on your microwave, what you don't know can kill you... even on an unplugged microwave, so make sure you understand the dangers and how to reduce them before you try anything inside a microwave. If you want to do more yourself, go to the link at the top of this post.

Oct 21, 2010 | Microwave Ovens

1 Answer

My microwave just quit workin. It has absolutely no power.


Make sure breaker isnt tripped. If breaker isnt tripped just for the sake of knowing plug a fan or something you know that works in the outlet. If it works, you have probably blown fuses in the microwave you'll have to take microwave apart to get to them.

Aug 25, 2009 | Whirlpool MT4110SP 1100 Watts Microwave...

1 Answer

Microwave won't turn on. Seems like it is not getting power. I checked breaker. I am looking for a fuse. You know where one is? It is a GE Spacemaker(2 yrs old) model # JVM1440WH04


  • Make sure that the microwave is plugged into a grounded outlet. It must be a 3-prong outlet.
  • Make sure the clock is set.
  • Check to see if a programming sequence was entered. Sometimes improper programming or a program sequence such as delay start can cause the touch panel to be non-responsive. Unplug microwave or turn off house circuit breaker for 30 seconds. Plug back in, or reset circuit breaker, and try reprogramming unit.
  • Check the house circuit breaker or fuse box. If the microwave is DEAD and there is no display and nothing works- the problem could be a blown fuse or tripped breaker.

Jul 29, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

All of a sudden my JE1540WW 003 has died.


check the slo blow fuse and the high voltage capacitor and the high voltage fuse. good luck.

Jul 10, 2009 | GE JE1540 Microwave Oven

1 Answer

Dead microwave


There are replacable fuses inside. Taking the microwave apart requires removal of a lot of screws and the cover that can be rather bulky. make sure it's unplugged and safe before you begin. you can get replacement fuses at radio shack, ect. be sure to buy the same type and amperage. if the blow a second time there may be other issues.

May 27, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

131 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8820 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Devabhakthuni...
Devabhakthuni...

Level 2 Expert

224 Answers

Are you a Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...