Question about LG Microwave Ovens

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Blown fuse 10 amp LG microwave oven model ms2127c it blown while im cooking a popcorn. what shall i do?

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You can get a replacement fuse from almost anywhere ranging from Ebay to an authorised LG repair agent, but please remember a blown fuse can simply be the symptom of a larger problem, so my advice is to buy two, replace it, if it works then you have a spare, but if upon replacing the fuse,it blows again straight away, your microwave may have a more serious problem. PLEASE READ UP ON THE DANGERS OF A HIGH VOLTAGE CAPACITOR AND ALSO HOIW TO DISCHARGE ONE AS THEY CAN HOLD A LETHAL AMOUNT OF CHARGE AND CAN CAUSE FATAL INJUFRIES INCLUDING DEATH.

Posted on Sep 06, 2010

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1 Answer

Where is the fuse located. It just quit heating but still runs, any ideas


There is usually a 125V, 20 AMP line fuse inside most microwave ovens. It will be mounted somewhere at the point where the power cord enters the back of the unit, in line with the power cord, or on a small circuit card called a line filter. 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 manufacturer and model. Parts are available at any of the following websites: searspartsdirect.com pcappliancerepair.com appliancepartspros.com repairclinic.com The first three sites include illustrated parts listings that can help you locate and properly identify any parts you may need. The microwave oven may also equipped with various thermostats that (if blown) can cause similar symptoms to that of a blown line fuse. So, if the line fuse is NOT blown, you may want to check all the thermostats to see if they are still good. You will need to remove each one and measure across the terminals with a multimeter. A good reading is 0 ohms. NOTE: The thermostats typically will trip if the oven cavity has been overheated. Cooking items that are high heat producers such as popcorn or baked potatoes in rapid succession can often cause this problem. Allowing the oven cavity to cool a few minutes with the door open between cooking can prevent this from occurring.


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 still 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 31, 2011 | GE JVM1653 Microwave Oven

1 Answer

I have a sca1000 microwave that will not come on. I think I had a power surge, but not sure. The oven is in my rv. Is there something I can do to fix it? I have disconnected it and waited a few minutes...


There is usually a 125V, 20 AMP line fuse inside most microwave ovens. It will be mounted somewhere at the point where the power cord enters the back of the unit, in line with the power cord, or on a small circuit card called a line filter. 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 manufacturer and model. Parts are available at any of the following websites: searspartsdirect.com pcappliancerepair.com appliancepartspros.com repairclinic.com The first three sites include illustrated parts listings that can help you locate and properly identify any parts you may need. The microwave oven may also equipped with various thermostats that (if blown) can cause similar symptoms to that of a blown line fuse. So, if the line fuse is NOT blown, you may want to check all the thermostats to see if they are still good. You will need to remove each one and measure across the terminals with a multimeter. A good reading is 0 ohms. NOTE: The thermostats typically will trip if the oven cavity has been overheated. Cooking items that are high heat producers such as popcorn or baked potatoes in rapid succession can often cause this problem. Allowing the oven cavity to cool a few minutes with the door open between cooking can prevent this from occurring.


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 still 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.

Apr 20, 2011 | GE Advantium 120 Convection/Microwave Oven

1 Answer

My GE1340 built-in microwave stopped working completely. It is just dead and does not respond when you push buttons. No power. Checked circuit breakers - all are fine. Any ideas? Is it kaput?


There is usually a 125V, 20 AMP line fuse inside most microwave ovens. It will be mounted at the point where the power cord enters the back of the unit, in line with the power cord, or on a small circuit card called a line filter. 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 manufacturer and model. Parts are available at any of the following websites: searspartsdirect.com pcappliancerepair.com appliancepartspros.com repairclinic.com The first three sites include illustrated parts listings that can help you locate and properly identify any parts you may need. The microwave oven may also equipped with various thermostats that (if blown) can cause similar symptoms to that of a blown line fuse. So, if the line fuse is NOT blown, you may want to check all the thermostats to see if they are still good. You will need to remove each one and measure across the terminals with a multimeter. A good reading is 0 ohms. NOTE: The thermostats typically will trip if the oven cavity has been overheated. Cooking items that are high heat producers such as popcorn or baked potatoes in rapid succession can often cause this problem. Allowing the oven cavity to cool a few minutes with the door open between cooking can prevent this from occurring.


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 with your MODEL NUMBER 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.

Dec 10, 2010 | GE JE1340 1100 Watts Microwave Oven

1 Answer

I have a sharp carousel microwave with a blown fuse can i fix this myself?


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. It will either be in line with the power cord, or on a small circuit card called a line filter. 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 manufacturer and model. Parts are available at any of the following websites: searspartsdirect.com pcappliancerepair.com appliancepartspros.com repairclinic.com The first three sites include illustrated parts listings that can help you locate and properly identify any parts you may need. The microwave oven may also equipped with various thermostats that (if blown) can cause similar symptoms to that of a blown line fuse. So, if the line fuse is NOT blown, you may want to check all the thermostats to see if they are still good. You will need to remove each one and measure across the terminals with a multimeter. A good reading is 0 ohms. NOTE: The thermostats typically will trip if the oven cavity has been overheated. Cooking items that are high heat producers such as popcorn or baked potatoes in rapid succession can often cause this problem. Allowing the oven cavity to cool a few minutes with the door open between cooking can prevent this from occurring.


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 the model number you listed this question under is correct, there are some excellent parts illustrations and a wiring diagram listed at searspartsdirect.com. The line fuse is listed as item 1-3 under the Oven/Cabinet parts section. FYI: If you cannot find your model number listed on some websites, use the part numbers from the Sears website as your search criteria. Some model numbers do not cross reference, but the part numbers may.
If you have any questions, or need additional assistance troubleshooting, please post 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.

Nov 19, 2010 | Sharp R-303CW Convection / Microwave Oven

1 Answer

Microwave acts like there is no power. Is there a fuse ?


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. It will either be in line with the power cord, or on a small circuit card called a line filter. 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 manufacturer and model. Parts are available at any of the following websites: searspartsdirect.com pcappliancerepair.com appliancepartspros.com repairclinic.com The first three sites include illustrated parts listings that can help you locate and properly identify any parts you may need. The microwave oven may also equipped with various thermostats that (if blown) can cause similar symptoms to that of a blown line fuse. So, if the line fuse is NOT blown, you may want to check all the thermostats to see if they are still good. You will need to remove each one and measure across the terminals with a multimeter. A good reading is 0 ohms. NOTE: The thermostats typically will trip if the oven cavity has been overheated. Cooking items that are high heat producers such as popcorn or baked potatoes in rapid succession can often cause this problem. Allowing the oven cavity to cool a few minutes with the door open between cooking can prevent this from occurring.


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 with your MODEL NUMBER 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.

Nov 11, 2010 | Magic Chef Microwave Ovens

1 Answer

I have a JVM1850 1100 watts. It's not heating. Shortly after we got it I think a fuse blew because we always had to turn the vent on and then the cooking time which worked. Now, it stopped heating all...


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 manufacturer and model. Parts are available at any of the following webistes: searspartsdirect.com pcappliancerepair.com appliancepartspros.com repairclinic.com The first three sites include illustrated parts listings that can help you locate and properly identify any parts you may need. If the model number you listed this question under is correct, the line fuse is connected in line with the power cord inside the unit and is listed as part of item 47 in the parts listing (part number WB27X10388). This microwave oven is also equipped with various thermostats that (if blown) can cause similar symptoms to that of a blown line fuse. So, if the line fuse is NOT blown, you may want to check all the thermostats to see if they are still good. You will need to remove each one and measure across the terminals with a multimeter. A good reading is 0 ohms. NOTE: The various thermostats are listed as items 27, 61, 74, and 77 in the parts illustration. The thermostats typically will trip if the oven cavity has been overheated. Cooking items that are high heat producers such as popcorn or baked potatoes in rapid succession can often cause this problem. Allowing the oven cavity to cool a few minutes with the door open between cooking can prevent this from occurring.


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.

Sep 08, 2010 | GE JVM1850 1000 Watts Microwave Oven

3 Answers

Oven turns off


Hi,

You are running the risk of damaging the Magnatron by doing this.

Check the packets you are using, you will have to reduce your power output.

This is because microwaves act by being absorbed by water. There is very little in popcorn and in fat. Once this has been evaporated, the microwave energy builds up (as it is still being produced - but not absorbed), and ends up cooking the magnatron itself.

I have seen countless posts on here after cooking popcorn!

More fun on the hob anyway - and cheaper to buy in bulk!

Jun 21, 2008 | Magic Chef MCD1311ST Microwave Oven

1 Answer

Danby microwave


Check if your fuse is still ok. If the fuse is gone replace and see if it is working.

Jan 06, 2008 | Danby DMW1400 Microwave Oven

1 Answer

My jvm1190 reads F4 when we try to use auto functiions


There is a fuse blown, but I can't explain how to replace it. They are inside the unit. Good microwaves have many fuses and can be powered up, but have a blown element fuse.

Nov 10, 2007 | GE JVM1190 Microwave Oven

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