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Need to know where fuse is in microwave oven from 1994 model number 56-5472-1004

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Remove the top cover and iys at the right rear side on the top of unit part# AP2140275 and the fuse is a 20Amp chemical fuse part # AP2136296

Posted on Sep 23, 2009

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1 Answer

Where is the fuse located


How do you expect us to know where the fuse is located without telling us the brand and model number of the microwave oven? They are NOT all the same!

Oct 16, 2014 | Microwave Ovens

1 Answer

Hello, I have a model R303CW microwave. Table turns,lights work, fan works, control panel works. NO HEAT. I see only one fuse, so that must not be the problem. Any suggestions?


The fuse you are referring to is usually the line fuse. If it were blown, the microwave oven would be completely dead. Since you HAVE power and the turn table, fan and lights all work, the line is not the problem.

If everything works, but the microwave oven does not heat, this is most commonly caused by a failed magnetron or internal thrmostat. The magnetron is essentially, the heart of the oven that produces the RF energy that is used to heat your food. In order to replace a defective magnetron, you will need to consider the following:

1. You will need to uninstall the oven from over the range in order to replace the part (you will need to do this anyway, if you decide to buy a replacement oven).



2. Ensure the oven is UNPLUGGED before servicing anything inside the cabinet and remove the exterior case in order to access the magnetron.
There are several websites that you can use that illustrate how the oven is assembled:
searspartsdirect.com pcappliancerepair.com appliancepartspros.com
NOTE: If you've never repaired an appliance on your own before, a microwave oven is usually not a recommended appliance to start with. Some models can be rather involved in taking apart.
If the model number you posted this question under is correct, the magnetron replacement part number is 10794402. NOTE: This model also has an internal thermal fuse mounted on the magnetron that, if tripped, could give you the same symptoms. The thermal fuse acts as a fuse if the oven cavity or magnetron overheats. The part number is 59001951. You will need to remove the thermal fuse from the oven and take a resistance check across the component terminals to determine if it is good or not. A low resistance reading indicates a good thermostat. An infinite reading, indicates a blown thermostat and needs to be replaced.

I would recommend you check the thermal fuse, first as the replacement cost is much less than the magnetron.


Review the parts illustrations at the recommended websites to see if this is something that you may be able easily take apart and reassemble.

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

CAUTION: DO NOT operate a microwave oven with the exterior cover off. The voltage inside the High Voltage network where the magnetron is installed can exceed 3,000 volts!

Nov 08, 2010 | Sharp R-340 Microwave Oven

1 Answer

Is there a fuse or breaker inside this model.


If the model number is correct, there is a 125V, 20 AMP line fuse inside the microwave. Its usually 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 illustration at pcappliancerepair.com based on the model number you listed this question under:

http://pcappliancerepair.com/model-display.php
The line fuse is listed as item 12 (part number 56001353). Keep in mind, there are different vairations on the model number you provided. You need to look at the model number you have and include the last three letters as well. I reviewed most of these models and they appear to all have the same parts. 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 wish to order on line, use the part numbers to search by comparison as the model number you listed this question under may not be available at all the websites I have provided. The parts, however, ARE listed.

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 13, 2010 | Amana AMV5164 Microwave Oven

3 Answers

It just quit while cooking. Is there afuse in this microwave?


If the model number is correct, there is a 125V, 20 AMP line fuse inside the microwave. Its usually mounted at the point where the power cord enters the back of the unit. You will need to UNPLUG the microwave oven and remove the exterior case to access. The case comes off in various ways depending on manufacture and model. I found this illustration at pcappliancerepair.com based on the model number you listed this question under:

http://pcappliancerepair.com/model-display.php
The line fuse is listed as item 12.

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.

Apr 27, 2010 | Maytag MMV1153A Microwave Oven

1 Answer

I have this unit and it just stopped working. NOTHING! NADA! My wife said the circuit had flipped but no one was cooking anything at the time. Do these things just short out? Lights, fan and microwave...


If the model number is correct, there is a 125V, 20 AMP line fuse inside the microwave. Its usually mounted at the point where the power cord enters the back of the unit. Unfortunately, you will need to uninstall the oven, UNPLUG it and remove the exterior case to access. The case comes off in various ways depending on manufacture and model. I found this illustration at searspartsdirect.com based on the model number you listed this question under:

http://www.searspartsdirect.com/partsdirect/showSubComp.pd?imageUrl=http%3a%2f%2fc.searspartsdirect.com%2flis_png%2fPLDM%2f50026410-00007.png

The line fuse is listed as item 8 (part number 3B74133K). There is a another fuse listed as item 2 (part number 3B72974C), but this is a thermal fuse for the fan motor.

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 wish to order on line, use the part numbers to search by comparison as the model number you listed this question under is not available at all the websites I have provided. The parts, however, ARE listed.

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. To answer your initial question, "yes", 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 any of the internal fuses blown and replace it, only to have it blow again, you have a more significant problem than a simple blown fuse.

Apr 27, 2010 | LG LMVM1935 Convection/Microwave Oven

1 Answer

Not turning on has no power


If the model number is correct, there is a 125V, 20 AMP line fuse inside the microwave. Its usually mounted on a small input line filter board at the point where the power cord enters the back of the unit. You will need to UNPLUG the microwave oven and remove the exterior case to access. The case comes off in various ways depending on manufacture and model. I found this illustration at pcappliancerepair.com based on the model number you listed this question under:


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


The line fuse is listed as item 47.

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 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.

Apr 27, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Where is the fuse located?


If the model number is correct, there is a small input line filter board with a 125V, 20 AMP line fuse inside the microwave. Its usually mounted on a small input line filter board at the point where the power cord enters the back of the unit. You will need to UNPLUG the microwave oven and remove the exterior case to access. The case comes off in various ways depending on manufacture and model. I found this illustration at pcappliancerepair.com based on the model number you listed this question under:

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


The line filter is listed as item 1420. The fuse will be mounted to this board.

You can purchase replacement fuses at any hardware store. 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 Slow Blow fuses are recommended.

If you have any questions, or need 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.

Apr 24, 2010 | GE JES1290 Convection/Microwave Oven

1 Answer

I have an amana microwave 1994 model mvh210w. where can i get a manual?


You can download the owner's manual here free.

If it needs work or a new charcoal filter, etc., you can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

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

Jun 24, 2009 | Amana MVH210W Microwave Oven

1 Answer

Need a replacement fuse for an Emerson Microwave Model MW8774


Please understand there are some liability issues that Emerson or their parts supplier have in selling you the fuse.

You should be able to find one by going online and searching with the terms you gave, using Google. I just did, and there are a number of hits to choose from.

Try Sears Parts Direct or Repair Clinic as well. You will need to enter your model number to find the parts listing.

In all likelihood, you have a failed controller board or microwave circuit (magnetron, transformer, diode, capacitor). Be prepared for additional troubleshooting.

REPLACE THE FUSE WITH AN EXACT REPLACEMENT> DO NOT REPLACE WITH A LARGER (more amps) FUSE TYPE.

Jan 16, 2009 | Emerson MW8777W Microwave Oven

1 Answer

Microwave


It sounds like there may be a blown fuse. The back of the mw oven will have to be removed to check. Some ovens only have a thermal fuse and not a traditional glass fuse. If that is the case you should call a technician to repair it unless you know how to use a soldering iron.

Dec 26, 2007 | Microwave Ovens

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