Whirlpool MH1140XM Microwave Oven - Page 2 - Answered Questions & Fixed issues

It should be pretty straightforward to replace. You need to be sure the oven is unplugged.

It's easier to remove the wires while it's still screwed onto the oven. There may be locking tabs on the terminals, so don't force them! Pliers will help, but be gentle.

When you gets the wires off, unscrew the old one, put the new one on, and tighten the screws, then reinstall the wires.

there is a switch on the front usually inside the back bottom latch it pushes on a switch in the back of it as you close the door.
you have to remove the top cover to get to it.
you can insert a plastic knife to test it. you should hear a click and light should turn off.
it may be jammed or open inside the switch .or wire is off. etc..

the door switch is likely stuck open.

We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

We're happy to help and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com

Hi larry,

Would it be posible your not setting the heat, is your microwave a popcorn setting one touch bottom.
It is also posible that the magnetron is not working, could be several factors, bad cap, power supply if it has one and bad magnetron. Also thermistor default may also not letting the magnetron to firer up.
You or going to have to figure how it works. also bad door switch may cause this.
To see were you or going if you know were the magnetron is then you most know that is is supplyed by a transformor, step up, at the primery winding , with a voltmeter set on ac voltage see if the voltage is present when starting the microwave, if the voltage is there 115vac you will notice will pulse on and off depending on your power level setting and there is still no heat then it's your secondary of the transformer that is not working.
This could be bad cap, power board if there is one, bad magnetron. Do not test the secondary voltage unless you understand it's very high.
If there is no voltage present, don't go farther, check your swithes, thermistors.

Regards

bob

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (including door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your full model number (without the suffix) here: http://tinyurl.com/gv383

This is a problem with the control panel assembly, which we repair nationwide for $32.50 postpaid. Sometimes the bulbs short when they fail, and that damages the control board. This also can happen when bulbs are removed or installed without first unlugging the oven or turning off the breaker. For critical safety & disassembly info and other details of our service, see http://tinyurl.com/yzjozk

Just so I understand, you replaced the fuse inside the oven? If so, I would suspect a bad thermostat attached to the magnetron. This device interrupts power when the unit gets too hot. I've included a representative photo. After so many years your magnetron may be bad, too. Once you get the oven working, if it cooks and doesn't trip the thermostat again, it may be okay. PLUS - It looks like this model has manual rotary controls. If so, it's common for those to develop bad contacts after so many years. I would consider that my third suspect. Those controls are called the thermostat (not to be confused with other part by that name that I discussed above) and the selector switch. One could easily be bad. You can check part prices at Sears online at http://www3.sears.com (the "3" is supposed to be there) Some other things that can cause a "dead" condition: - bad connections on the small circuit board where the fuse is mounted (if such a board is present) - bad connections in the wiring Good luck.

Get the door safety interlock switches tested for continuity and alignment, by a qualified service engineer. If a door switch is not switchimg. there will be no power to the magnetron and no heating.

Question edited for clarity and typos. This is the only one available online. Microwaves are so inherently dangerous inside, Service Manuals are strongly restricted from public access. Make sure his medical and life insurance is up to date. http://www.uncleharrywizard.com/nephewclub/wizardrange/whirlpool-kitchen-aid/8178573-km-30-whirlpool.pdf Have a read. The Triac will be hard soldered to the mainboard or power board, so just look for the one with the same number. https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

1. Clean the door sensors: If your microwave is showing "DOOR" when you press start, it's possible that the door sensors are dirty or obstructed.Try cleaning them with a soft cloth or cotton swab23.
2. Replace the door switches: If cleaning the door sensors doesn't work, it's possible that one or more of the door switches are faulty and need to be replaced. You can follow this video tutorial to replace the door switches yourself3.

If none of these steps work, it's best to contact a professional or the manufacturer's service center for further assistance. I hope this helps!

All about repairing Microwave Ovens. https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

The fuse for the Whirlpool microwave model WMH31017HZ07 is located inside the microwave oven. You will need to remove the outer cover of the microwave to access the fuse. Here are the steps to follow:

1. Unplug the microwave from the power source.
2. Remove the screws on the top of the microwave that hold the top grill in place. Remove the grill.
3. Locate the screws that hold the control panel in place. Remove the screws and carefully pull the control panel forward.
4. Locate the fuse holder on the right side of the control panel. Remove the fuse holder by pulling it out.
5. Check the fuse to see if it is blown. If it is, replace it with a new fuse of the same type and rating.
6. Reinstall the fuse holder, control panel, and top grill.
7. Plug the microwave back in and test to see if the light is working.

If the light still does not turn on after replacing the fuse, there may be another issue with the microwave and it may require further troubleshooting or repair.

To Start Demo Mode

1. Select the Tools keypad.
2. Scroll and select INFO.
3. Select Store Demo Mode and select ON. NOTE: The display screen will show the time
4. Select the Tools keypad.
5. Select Try the Product or View Product Videos.

To Exit Demo Mode:

1. Select Try the Product.
2. Scroll and select Explore.
3. Select the Tools keypad.
4. Scroll and select INFO.
5. Select Store Demo Mode and select OFF.
6. Select YES on the confirmation screen.

link copy and paste https://producthelp.whirlpool.com/Connected_Appliances/Product_Info/Videos/VIDEO%3A_Entering_and_Exiting_Demo_Mode_-_Smart_Appliances ..

It sounds like you are experiencing an issue with your Whirlpool AKP 745 NB oven. The fact that the oven is only blinking with an "auto" text suggests that there may be an issue with the electronic control panel. A possible solution is to reset the oven by unplugging it from the power source for a few minutes, then plugging it back in. This can help to clear any temporary issues with the electronic control panel. If the problem persists, you may want to check the user manual for any specific troubleshooting steps or contact the manufacturer for assistance. Another possible solution to try is to reset the oven by pressing a certain combination of buttons on the control panel, as the manual suggests. If the problem still exists, it is advisable to contact the manufacturer or a professional technician for repair. It's important to note that, electronic control issues can be caused by various problems, so it is best to refer to the user manual or contact the manufacturer for more specific troubleshooting steps and to get a more detailed diagnosis of the problem.

A bad fuse is one of the most common problems on microwaves, including Whirlpool ovens. Most modern microwaves use the same style of fuse which you can find at most appliance and electronics stores. The difficulty of replacing the fuse in a Whirlpool microwave can vary depending on whether you are working on a countertop microwave or a built-in. Knowing where to start can make the process much easier for either style of microwave. Countertop Microwaves Step 1 Unplug the microwave and let it sit for a few minutes before beginning repairs. Bring it to a clear area with enough room to work. Leave enough room to have access to it on all sides. Step 2 Remove the Phillips screws from the outer shell of the microwave. The screws are located along the lower sides and around the edges of the back. Put the screws into a bucket or bowl to keep them together. Pull the shell away from the microwave, and set it to the side. Step 3 Look for the fuse inside the exposed controls of the microwave. The fuse is located in a small receptacle with two wires running to it. Use a flat screwdriver to pry up from the bottom of the fuse. The fuse will pop out. Replace the fuse with a new one. Built-in Microwaves Step 1 Unplug the microwave, and let it sit for a few minutes before beginning repairs. Step 2 Open the microwave door, and look for two Phillips screws along the left side of the control panel. Remove these screws. Lift up on the control panel, and tilt it outward. The control panel will rest on its hinges. Step 3 Find the fuse receptacle within the control area. Is is usually located to the left or center of the cavity. You will see two wires that go to either end of a small, plastic receptacle. Use a flat screwdriver to pry up on the bottom of the fuse. The fuse will pop out. Replace the fuse with a new one.

DO NOT USE LED BULB <https://producthelp.whirlpool.com/Cooking/Microwaves/Microwave_Product_Information/Replacing_the_Cooktop_Light_on_an_Over_the_Range_Microwave>

Gaskets are available, but with all microwave repairs, I would recommend using a repair technician unless you are confident of doing it properly. The door should be checked after all repairs for microwave leakage. https://www.repairclinic.com/Shop-For-Parts/a6b5c21/Whirlpool-Microwave-Gasket-Seal-Parts https://www.google.com/search?q=whirlpool+amw505ix+microwave+door+seal+replacement ..

You don't. It is not a home repair job. https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

This suggests you can but shows no screws or fittings https://www.appliancefactoryparts.com/microwaves/whirlpool/mh6151xht.html There are videos that may help https://www.google.com/search?q=whirlpool+microwave+model+MH6151XHT-1+clean+door+glass ..