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If the microwave is 16 yrs. old, would you replace it or attempt to fix blown fuse (it that's the problem)

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Go for replacing the fuse. the fuse is on the internal main circuit board. you need to disassemble the unit to reach the circuit board. If your unit doesn't work at all, it could be because of problems with:
Power from the house
Check to see whether there's power getting to the microwave. Is it plugged in? If you plug something else into the outlet, does it work? If not, check for a blown fuse or tripped circuit breaker.
Thermal fuse
On many microwave, there's a thermal fuse (a heat-sensitive fuse that blows if the microwave overheats) mounted to the exhaust duct inside the back cover panel. The fuse is about an inch long. It's usually embedded in black resin and mounted in a white plastic housing.
If the fuse has blown, it has no continuity. When this happens, your microwave either just stops heating, or it doesn't work at all. Be sure to inspect the venting/heating system before replacing the fuse to put the microwave back into operation. (You can't re-set this type of fuse.)

Wiring
Often the main wiring connection from the house, at the microwave, burns and the connection breaks. In this has happened to your microwave, you need to replace the power cord and the terminal block inside the microwave to which the wire is attached.

You can get required parts from www.repairclinic.com
This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

Posted on Feb 07, 2010

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How do I fix a blown microwave fuse?


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Dec 06, 2015 | In Microwave Ovens

1 Answer

Convection/microwave turntable motor arcing; 7 yrs old is it worth fixing


If arcing and is seven years old time to replace the item, more cost effective with full warranty.

Mar 05, 2012 | Microwave Ovens

1 Answer

My old GE Spacemaker II microwave (JEM21K001) died. I was using it, heard a little pop, and it lost all power. Is this something simple to fix like replacing a fuse or is it bulk trash at this point?


HELLO.

take on these steps to solve the problem.

Check if there is electric power on wall outlet.

If the microwave plug has fuse,check if it has not burnt.if these are okay there is need to take the last step.

things needed
1.Screwdriver
2.Ohmmeter
3.New fuse

1. Unplug the microwave from the electrical outlet to prevent electrocution. Place the microwave in a well-lit area to be able to locate the fuse.

2. Use a screwdriver to remove the outer cabinet of the microwave, and follow the power cord to the fuse. The fuse is located 2 to 3 inches within the microwave and is attached to the power board.

3. Observe the fuse to determine if it is blown. Blown glass fuses will produce burn marks on nearby surfaces, or the internal fuse wire will be black and melted, while ceramic fuses show no outward appearance of being blown.

4. Determine if a ceramic fuse is blown by testing it with an ohmmeter. If the ohmmeter reads zero ohms, your fuse is not blown. Other readings on the ohmmeter show that your fuse is blown.
5. Replace the blown fuse by popping it out of its holder, and snapping a new fuse in its place. Tighten the fuse clips by squeezing them together with your fingers.

6. Replace the outer cabinet of the microwave, and plug the microwave back into the electrical outlet. Test the microwave to see if it's working properly.

Thanks.

Sep 18, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

I was heating my tea and I heard a loud pop and the unit turned off...I thought I had blown a fuse and went out and checked fuse box..flipped all fuses and microwave still not turning on at all...micorwave...


The description you provide indicates the magnetron has failed, "heats food" and blown the main fuse in the microwave oven, since the unit is 10 years old it is much cheaper to replace with a new one rather than have it repaired.

May 15, 2011 | Amana Radarange Microwave Oven

1 Answer

When I press the start the button the turn table inside microwave is not turning and there is not heat on the food. But the light is on and the clock is working. What do you think is the problem? and what...


The turn table motor of your microwave is defective already and also the magnetron - the source of generated heat of the microwave is also defective. But before assuming that magnetron is dead, check the high voltage fuse it may be blown and replace the fuse (if it is blown) it with similar rating. I hope I help you with your microwave problem.

Mar 21, 2011 | Emerson MW8107WA Microwave Oven

2 Answers

The electrical outlet is on. The microwave is completly dark. It's 16 years old. What should i do? Fix it or buy a new one.


After 16 years, I should think you had your money's worth from this machine.
There are a few arguments for fixing it, if it's repairable, but a new one will be more powerful while being more efficient too. (use less electric)
Less radiation leakage too.. (pacemaker exposure?)

Perhaps you should first try shopping around to see if you find one that you like, and that fits in the space you have for it, etc. If you buy a new one, get a good one. Don't go cheap.
If one seems to make good sense to you, then buy it. If nothing looks good to you then find a repair shop to take old one to.

Why would you keep old one? Well first of all, they don't make them like they used to. Lot of new ones are noisy and rattle a lot. Don't last nearly as long. Many new ones have problems early.

Old ones are lower power, which is slower, BUT food heats more evenly because of it. Less prone to exploding food.

Feb 28, 2011 | Whirlpool MH7135XE Microwave Oven

2 Answers

Just noticed microwave digital screen was blank and it will not work. checked plug. reset breaker. still not working. its only 5 yrs old


there are fuses inside the microwave but why did it blow??? normaly it only blows if there is a fault in the unit first

Aug 22, 2010 | GE Microwave Ovens

1 Answer

Maytag 2 yrs old. Completely dead - like getting


There is usually a 125V, 20 AMP line fuse inside the microwave, mounted at the point where the power cord enters the back of the unit. Unfortunately, you will need to uninstall the oven (if this is an over the range model), UNPLUG it and remove the exterior case to access. The case comes off in various ways depending on manufacture and model. I found this wiring diagram at pcappliancerepair.com based on the model number you listed this question under:

http://pcappliancerepair.com/model-display.php


This model has TWO potential causes. The line fuse or the Thermal Cut-Out (Thermostat) for the Magnetron. The line fuse is connected in line with the power cord inside the unit and is listed as part of item 26 under the "Cabinet-Base-Cavity" heading.

The Magnetron Thermostat is listed as item 6 (part number 56001028) under the same heading. If you managed to overheat the oven any time recently, you may want to check the thermostat to see if it is still good. It should read 0 ohms when measured out of the circuit across the terminals.

If the line fuse is blown, you can usually purchase a box of fuses at a hardware store for just a little more than what the manufacturer charges for a single fuse. 125V, 20AMP Ceramic Slow Blow fuses are recommended.

If you have any questions, or need additional assistance troubleshooting, please post back and let me know. I hope you find this information helpful.

NOTE: Make sure you take any resistance readings with the microwave UNPLUGGED and the component under test isolated (removed) from the circuit. These ovens can blow a fuse by simply sitting idle. This can occur from any power fluctuations, brown outs, voltage spikes, etc. Or, it could be the symptom of a component that may have failed. If you find the internal fuse blown and replace it, only to have it blow again, you have a more significant problem than a simple blown fuse.

May 24, 2010 | Maytag MMC5000 Microwave Oven

1 Answer

Viking Microwave Model VMOC205SS little over 4


9 amps is approx. correct. Does magnatron make an odd sound when running? If not, you will need to discharge cap then clean terminals with alcahol. Replace diode as well. Should run correctly.If blows again, replace magnatron. Suggest you put a 12 amp fast blow fuse in circuit and nor a 20 fuse.If you dont have a grill or an oven, use a 10 amp fuse.

Sep 17, 2009 | Viking VMOC205SS Microwave Oven

1 Answer

Frigidare FMCB115Gc Has power won't start up


Could be a blown fuse in the HV transformer primary circuit,bad connections to the magnetron filament,open thermal protector or thermal fuse,

Sep 03, 2009 | Frigidaire Mid-Size Microwave

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