Question about Kenmore 62622 Microwave Oven

1 Answer

The unit is not functioning although power supply is fine; I suspect a blown fuse but cannot locate my original parts list (model #721.62622) to identify which fuse to replace. Are fuses available from any Big Box or local hardware store?

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20A ceramic fuses (the most common) can be had locally in most grocery stores, hardware stores, home improvement centers, and big box or department stores.

It may be the fuse, which is usually located behind the grille, on the floor of the oven behind the control panel, between the door switches, or on the filter board near where the cord comes into the unit.

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

Accessing some components (especially the oven cavity thermostat) for testing and possible replacement will require you to remove the oven from the wall and take off the outer cover.

To find helpful exploded view diagrams and get part numbers, you can just enter your full model number at the Sears parts site.

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as 721.62622200. Check the tag on your unit.

But Sears parts can usually be obtained for far less here by entering either the part number.

When you enter your model number here, on the resulting page look to the right for the blue "View manuals" button. Click there.

The unit is not functioning although power supply - d:%5cele%5crepair%5cmicrowave%5ckenmore_sears%5cview_manuals_button.jpg439cb0b.jpg

That Sears-related site has many free manuals. While the manuals they list there are all free, they will ask you to register.

Many times, the owner's manual will also have the installation instructions inside, too.

If yours is not listed there for free, you would have to order it through the
Sears parts site.

We have the overall schematic diagram for model 721.62622200 here and here. It may be close enough to yours to help.

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

Posted on Jun 28, 2009

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1 Answer

No power


i had the same problem and did what this fella suggested and worked just fine. 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. 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 4 in the parts listing (part number STD384200).

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.

Feb 06, 2012 | Emerson MW8102SS 1100 Watts Microwave Oven

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Have a whirlpool microwave model GH5184XPS-4. This morning I turned the "Cooktop Light" on and a few minutes later I heard a small pop, looked over and the lights had gone out. One of the bulbs...


yup most probably that is the case.

you can locate the fuse usually it is placed near the main power supply or just trace the supply cord going in your unit. but before you open your unit be sure it is unplug to avoid electric shock.

slowly disassemble the unit and be sure that you can replace all the screws back to it original positions. after locating the fuse, check if it has a continuity and be sure to replace the same fuse rating. also investigate why the fuse had blown up and look for abnormalities.

if nothing found then replace the fuse and put all back then test the unit. if still it blows fuse, their must be something wrong with the unit and have it service to qualified personnel.

Dec 31, 2010 | Whirlpool Microwave Ovens

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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

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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.

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Don't know if this a regular problem with this unit, but for this fuse to blow, there must be a problem further downstream. Maybe with the power supply or the Magnatron.

Sep 07, 2010 | Sharp R-1874 Convection/Microwave Oven

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My unit has completely and suddenly died. Nothing works: heat, turntable, clock, light, all dead. There is power in the outlet, which tells me that there may be a breaker or fuse inside the unit that has...


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.


Replacement parts can be ordered at any of the following websites:

searspartsdirect.com
pcappliancerepair.com
appliancepartspros.com
repairclinic.com

All these sites are reputable and offer competitive pricing, so shop and compare. The first three sites on the list also inlcude exploded view parts illustrations to assist you with locating and properly identifying any parts you may need.


If the model number you listed this question under is correct, the line fuse is connected on the wiring harness inside the unit and is listed as part of item 14 under the "Interior" parts listing (part number 815174). There is also a Thermal Cut-Out (TCO) in the High Voltage network mounted on the magnetron that, if blown, will cause the same symptoms. It is listed as item 15 under the "Magnetron and Air Flow" parts listing. The part number is 815076.

CAUTION: DO NOT under any circumstances attempt to operate or troublehsoot the microwave oven with the exterior case removed. Voltage potentials in the High Voltage network can exceed 3,000 volts. Always UNPLUG the unit when attempting any repairs.


If the line fuse is blown, you can usually purchase a box of fuses at a hardware store for less 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.

Aug 23, 2010 | Whirlpool GH7155XHS Microwave Oven

1 Answer

This model just stopped working while heating food up. Now cannot get even the power to register when you plug it in. Is this doen for?


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. 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 4 in the parts listing (part number STD384200).

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.

Jul 22, 2010 | Emerson MW8102SS 1100 Watts Microwave Oven

1 Answer

Nothing works at all. It's plugged in and the breaker is fine.


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. If the model number you listed this question under is correct, you have THREE potential causes for a complete loss of power. 1. Line fuse 2. Line filter/noise filter circuit board 3. 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 11 under the "Blower-Motor" parts heading. The line filter printed circuitboard is listed as item 19 (part number: R9800472) under the "Blower-Motor" heading. The Thermostat for the Magnetron is listed as item 8 (W10254040) under the "Cavity" parts heading. The most expensive part is the line filter board, which runs about $25.

I would recommend you check the fuse, first. This the easiest and least expensive repair. It is also the most common. If you managed to overheat the oven any time recently, you may want to check the thermostat to see if it is still good, next. 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.

Jul 01, 2010 | Amana AMV5206 Microwave Oven

2 Answers

Reset for GE Microwave?


There's no other reset function. If a reset (unplugging) does not correct it, it will need to be repaired.

If it's less than one year old, it should be fully covered under warranty. I'd suggest contacting the manufacturer to get it fixed free. GE Customer Service is here.

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

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

I would suspect a blown fuse or the magnetron;s thermal cutout / thermal fuse.

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

Dec 27, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

No power


You mentioned taking the "buttons" off. That may not give you complete access to the units motherboard or power supply area. Unplug the unit and remove the outside cover. Look for a blown fuse on the motherboard or power supply. Replace it with the EXACT value of the original fuse. You can purchase a new fuse at Radio Shack or hardware store or auto parts store. Try powering up the unit again and see if it works now or whether the fuse blows again. If it blows again, the power supply may have been damaged.

Jan 29, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

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