and close the door it runs constantly.
Vacuums

How to Identify and Fix Common Vacuum Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced Vacuum Technicians :

If the Microwave is overheating and shutting itself down, this is caused by high voltage parts inside the unit getting too hot the leading the thermal cut-out switch to be activated as a safe feature to prevent further overheating.
The thermal fuse cuts off power to the microwave if the microwave overheats. To determine if the thermal fuse has blown, use a multimeter to test it for continuity. If the fuse does not have continuity, replace it. The thermal fuse cannot be reset—if the fuse is blown, it must be replaced.
If the microwave runs for a few seconds and stops the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if it`s blown.
Try resetting the breaker or replacing the fuse to restore power. If you`re still having no luck, the problem could be with an internal fuse. Like many other devices, microwaves have a thermal fuse to keep the appliance from overheating. If this fuse is blown, the microwave won`t power on.
The control board controls your microwave by sending power to the relays. When your microwave keeps working even after you press the “stop” button, this is a good sign the control board is faulty. It is possible to keep using a microwave even when this occurs, but it`s not ideal – you should replace the control board.
Press the cancel/reset button to do a soft reset on your microwave. If necessary, perform a hard reset by unplugging your microwave for 30 minutes, then plug it back in.
Problem with the line fuse

The first and main cause of microwave not working but has power is an issue with the line fuse. If more than required current flows through the microwave circuitry then the line fuse will blow. To find out whether this is the main cause, you can make use of a multimeter for continuity.

Our survey results suggest that you should consider repairing the broken microwave if it`s still under warranty or if it`s 5 years old or less, but you`ll definitely want to replace it if it`s more than 5 years old. Once you spend $500 or more on an OTR microwave, there are more decision points.
The most common cause of a microwave not working is that the main fuse has blown. The fuse will often blow because of a power fluctuation or a defective door switch. It can also blow because another part, like the magnetron or capacitor, is defective.
It is possible for a microwave to overheat. The microwaves heat food by targeting water molecules, if there is no moisture in the food to heat, this can cause overheating. The vast majority of them have an automatic shutdown feature if they do, though.
Whatever problem you`re having with your Kenmore microwave oven or any other home appliances, get in touch with Sears Home Services, your local Kenmore appliance repair company.
The average microwave oven lasts about seven years with normal use, and even less with heavy use and poor maintenance.
Microwave ovens use one or more thermal cut-outs, sometimes called thermal fuses, to protect the oven from overheating. They are located inside of the cabinet, often near the oven cavity or the magnetron. If the thermal cut- out fails, power is interrupted to the controls or to the control outputs.
A broken magnetron is the most common reason that your microwave is running but not heating your food. The magnetron is an essential part of a microwave which is responsible for creating the microwaves needed to heat your food.
For example, if the microwave door is not closed correctly, a fuse will blow to prevent harmful radiation from escaping from the microwave. Other fuses may blow because the temperature inside the microwave is too high or because of a surge in electricity.
If you take good care of your microwave up into its old age, there`s a low risk of harm, but if it`s damaged in any way you may want to get it checked out. If you`ve looked after it well, there`s no reason why a vintage microwave should be dangerous.
Microwave Fuse Replacement

Replacing a microwave fuse costs between $10 and $15. This repair issue is often a simple fix, but if you plan on using an appliance repair person, your costs could increase to $50 to $100.

Microwaves are non-ionizing radiation, so they do not have the same risks as x-rays or other types of ionizing radiation. But, microwave radiation can heat body tissues the same way it heats food. Exposure to high levels of microwaves can cause skin burns or cataracts.
Bad microwave magnetrons can make various noises, and the noise is often very loud. Usually, faulty magnetrons make a high-pitched screaming or screeching sound. A magnetron may also make a loud buzzing or humming noise, depending on the issue.
Place a glass bowl (preferably a 2 quart glass measuring bowl) filled with 1 quart of water in the center of the microwave oven cavity. The water temperature must be between 59 to 75 degrees Fahrenheit (15 to 24 degrees Celsius). Heat the water for exactly 2 minutes and 30 seconds on the High power level.
Can you overheat a microwave? It is possible for a microwave to overheat. The microwaves heat food by targeting water molecules, if there is no moisture in the food to heat, this can cause overheating. The vast majority of them have an automatic shutdown feature if they do, though.
You shouldn`t leave your fan on for more than one to two hours while cooking. Most meals in the kitchen should take less than that to prepare. The longer you want to run your hood, the more power you`ll need to vent out all the smoke and cooking fumes.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My e wave microwave appears to be in fine working order until the door is opened. It then trips the breaker and ceases working. Ater the house breaker is reset, the power is restored to the microwave until the door is opened again.. I havve tried plugging the microwave into another area that is on a different power breaker but again the breaker trips and the microwave ends all functions. Have you any solutions to my problem?

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ANSWER : You may have a short circuit on the INTERIOR LIGHT BULB circuit in your microwave.
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.This might explain why the breaker trips every time you open the door.
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.If so, you would have to unplug and disassemble the unit in order to access the wires and light bulb socket inside the case in order to troubleshoot and repair the problem.
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.If you are unfamiliar with safe electrical troubleshooting and repair procedures, please be extremely careful or consider hiring an electrician to do the work. There are some hazardous components inside which remain dangerous even after the unit is unplugged.
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.Good luck.

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Infinity Vaccum by Shark, model number NV31COS, will not start. The vacuum was running just fine until it grabbed the edge of a curtain. Turned it off to release the suction. Turned it back on and was working fine. About a minute later the vacuum was making an odd noise. Every 2 seconds or so it would “heave” (lack of a better word) then go away, then come back and so on. Turned the vacuum off and checked for blockage, none that could be seen or felt, and now the vacuum won’t turn. Any suggestio
ANSWER : Carpet brush won’t turn when vac on

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I have a Liftmaster garage door opener and the garage door faces south. Normally the opener works great except at certain times on a sunny day.The sunlight is not directly hitting one of the sensors but the door will comedown as far as half way and then it will go back up and the lights will flash. If I go inside and use the button I can hold it down until the door is fully closed. However, sure is a pain to have to take the car out, go back into the garage, shut the door and then leave the h
ANSWER : Sounds like a problem with a limit switch or something getting in the way of the electric eye that interrupts for safety reasons. .Clean the electric eye transmitter and sensor of debris and cobwebs and make sure the wires are attached properly..Check the operation of the lifting media track or chain. Has it been lubricated recently?.If possible, clean the switch in the transmitter in the car, it may be shorting out.

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I have a Kenmore Elegance Vacuum with Dirt Sensor, Model # 116.30750400C, Serial number M41901532. When vacuuming the carpet the power head will work for 3-6 mins then automatically shut off, power is still there and lights work but the power head motor turns off and the suction stops. I will turn it off and on, check the outlet, flick the on off buttons…nothing. I will turn it off for a couple minutes and it turns back on and runs like normal. I’ve check the bags, filters, cleaned the hos
ANSWER : It is an electrical problem in the handle, if you can or know somebody that has any fix it ability it can be fixed in about ten minutes. Oh, and Sears SUCKS!!

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I have a Kenmore canister vacuum – model 25614506. Some time ago, I was not able to turn the vacuum off with the on/off switch, but could still use the vacuum. Turned if off/on by pulling the plug. The other day when I went to plug it in, I heard a pop. Now the sweeper runs but the vacuum cleaner does not **** – no air flow. What could be the problem. The cleaner is only 4 years old.
ANSWER : The motor has an inline fuse

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Vacuum won’t turn on when plugged in and switch is turned on
ANSWER : The easy answer to this problem is you need a new cord. Any fit all 20 to 35 foot two wire cord will work. However, you will need to take disassemble the almost the entire vacuum to test the current cord to see if it is bad. There are a lot of pieces to take off to get to the inside of the vacuum where the cord enters from the back. You could also have a bad motor.

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Power cord can not find replacement power cord for power brush attachment on kenmore canister vacuum, model #2491290 power brush attachment model # 5491290. i can not even find those model #’s anywhere online, not even partsdirect.com. any help would be great. thanks, david
ANSWER : Call 1-800-948-1358 ask for Buck mon.-fri. 9am-5pm est sat.9am-1pm est

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I have a Kenmore upright progrssive intell clean. For some reason it isn’t sucking when I use it to vacuum. When I use attachments they work fine, but when I plug the hose back in after using the attachments and turn it back on it makes a weird noise and I can feel air blowing out of the back. Can you help me resolve this problem?
ANSWER : You have the answer and just don’t know it. You are there so keep looking. Somewhere between where the suction hose connects with the lower hose and the power-head. There is a blockage, you may need to turn the unit upside down and look there or try using a wire with a hook on one end, to extract the blockage. but something is blocking the tube from letting air and debris from traveling up the tube.

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