Question about Maytag Microwave Ovens

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What does L mean on the display?

Not able to get microwave to do anything. Power is still on, but will respond to any commands, such as cooking, turning light off, clear/reset, etc.. When you press a command button down, the the letter L pops up on the message area.

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  • Maytag Master
  • 17,130 Answers

Make sure that the program controller is working if not check power - step down supply, the pads are responding- if not faulty pads- or the door switches, if the switch contact are not good then it will not trigger the processor to switch on the waveguides. If the lights or fan work without any display or action of program being triggered to start then it can be a possible fault on the main board or the processor. Sometimes insect secretion can short the board and display panel and so the processor can work in such an erratic manner. If so clean, solder and reset the board. Now identify the parts by clicking this link: http://www.espares.co.uk/advice/microwave/a/5/141/identifying-microwave-parts.html

If there is no heating please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is faulty, the temperature cut off is faulty or the main capacitor is short. It is also quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron. Check this link to know how a microwave works:

http://www.espares.co.uk/advice/microwave/a/5/1443/how-a-microwave-oven-works.html

So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off. Check the wave guide covers, if food had deposited
then it must be checked or replaced. See link:
http://www.espares.co.uk/advice/microwave/a/5/1146/how-to-replace-a-microwave-guide-cover.html

Now keeping clear of the microwave, switch on; use a cup of water inside to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. replace with same type.
If there is heating without any issues, you can use the microwave safely

Posted on Jan 22, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 17 Answers

SOURCE: Microwave turns on, but no heat or turntable movement

The problem is that the magnatron is not getting power. Chance is that if could be a bolwn fuse inside the unit. If the fuse don't fix it then that leaves the charging diode, capacitor or the magnatron, or high voltage xformer of which without technical epertize I would not recomend attempting to replace. good luck

Posted on May 14, 2008

MicrowaveSvc
  • 9085 Answers

SOURCE: Microwave Oven Does Not Start Cooking

This is usually caused by either a bad door switch or a loose door switch mount, which are pretty simple problems to fix.

Even though a door switch clicks, it may still be bad inside.

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

If you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches 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 also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

If you don't find yours, or if you want to look at it without disassembling the oven, you can download it here.

If yours is not shown at the parts site or manual site linked above, Please reply back with your brand and model number so we can help you.

If you only need a switch, you can order a universal type here for $5 postpaid.

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases in about a week or so.

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

Posted on Dec 25, 2008

  • 140 Answers

SOURCE: Ge microwave model JVM1190WY buttons work but does not cook

The problem you are having with your microwave is a common one. Not heating is a problem that can be caused by three things. I'll list the most common solution first, the magnetron that actually does the heating is what is making that noise and has gone bad. It is possible for you to also have a bad high voltage diode that has opened up, solution two, or solution three is the high voltage capacitor is not working properly as well. From my experience with microwaves I am positive that it is your magnetron that is bad. If you are not do it yourselfer you'll need to take it to a repair shop to replace. However, if you know how to use a screwdriver and can unplug a couple of wires with spade terminals on them, then you can take it off yourself, find another one and replace it the same way you took it off. The magnetron sits behind the control panel of your microwave but on top. It has cooling fins on it and has 2 terminals maybe three depending and make and model that plug into it. It has 4 screws that are easy to get to that actually holds it in place. If you do not have a good local source like an electronic parts supply place then you can find the right magnetron at www.mwoparts.com. Be sure you always unplug the microwave before touching or trying to take the he cover off and then when you take the magnetron off also.Good luck and God bless.

Posted on Feb 11, 2009

  • 3 Answers

SOURCE: Emerson microwave, #MW8119SB, push start button to start cooking

Replace the fuse with a ceramic fuse from Home depot! costs less than $3 and it will fix the problem. I had all the same problems as everyone else, you name it my microwave had it! you must remember replace it with a ceramic fuse! not a glass one. I know people say its the switchboard and all that nonsence but I promise you, the fuse plays a majoe roll in the microwave not working properly. Even though it doesnt look broken, a junky fuse can cause your appliance to do very strange things. I replaced mine 6 months ago and it works like its fresh out of the box.

Posted on Apr 29, 2009

MicrowaveSvc
  • 9085 Answers

SOURCE: microwave won't heat

Sorry my Clarification Request came out as a single blob of a paragraph.

That's not how I typed it. I never write that way!

So I've pasted it here, but as a solution.



Magnetrons generally should last about 2000 hours, but several factors can shorten that.

If it's not OVER ten years old (from the purchase date or the date on the tag inside the unit) then the magnetron is still under warranty.

From the owner's manual:

"For the second through the tenth year from the date of original purchase

"The magnetron tube, if the magnetron tube fails due to a defect in materials or workmanship. During this nine-year limited warranty, you will be responsible for any labor or in-home service costs.

"For the above limited warranty: To avoid any trip charges, you must take the microwave oven to a
General Electric Customer Care® servicer and pick it up following service. In-home service is also
available, but you must pay for the service technician’s travel costs to your home."


GE Customer Service is here, and you can verify the warranty status and find your nearest authorized servicer.

If you're sure the magnetron's bad, it's still under warranty, and you or a friend are handy, they will send you the magnetron to do it yourself. Call them at 888-239-6832.

Be persistent. You may have to speak with a supervisor.


It does sound like the magnetron overheated and the magnetron's thermostat opened until it cooled down.

An overheating magnetron can be due to:

  • operating oven without cover(s) in place
  • wrong magnetron installed in oven
  • an old or otherwise failing magnetron
  • cracked magnetron magnet
  • improper power line voltage (should be 110-125VAC)
  • foods low in moisture (popcorn & bacon, e.g. - add 1/2 cup of water in rear oven)
  • failed or inoperable cooling fan or hood vent exhaust fan
  • deteriorating foam weatherstripping seals in air ducts or on outside cover
  • blocked air vents (dust, animal nest debris, insufficient free air space behind & around oven, etc.)
  • clogged or greasy charcoal filter or grease filter
  • blocked duct in hood vent exhaust
Since yours is a counter top model, there are less of those factors to worry about.

When you hit Start to microwave, do the inside light, cooling fan, and turntable all come on?


Any unusual noises? Is it louder or quieter than usual?

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

You can find helpful exploded view diagrams and order parts if needed by entering your full model number from the tag on the oven here.

Let us know what you find out or decide.

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

Posted on Jul 07, 2009

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test this steps and fix it. God bless you
  1. Power Issues

    • If your microwave oven won't come on, ensure that the power cord is plugged into an outlet and that the power is on. Replace any blown fuses, and reset a tripped circuit breaker. If the microwave won't run, see that the door is completely closed and that nothing is stuck in it. Ensure that your door is not broken. Replace if necessary. See that you have not started the timer as opposed to the cooking function. Press "Start/Enter" to start your microwave.

    Clock

    • Your display will flash if your power goes out. You must reset the clock. If you do not hear a tone at the end of cooking, ensure that you have enabled the audible tone. Also check that you are using the right command. If your power goes out while your food is cooking, you must reset both the cooking time and clock.


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    Cooking

    • If you see sparks while you are cooking, remove any metal objects or plates with silver or gold trim. If your food is taking too long to cook, ensure that you have selected the correct power level for the food item. Remove any other appliance from the 20-amp circuit line. Additional appliances on the same amp will draw too much power away from the microwave. Also ensure that you have selected the correct food item in the preprogrammed menu. Each microwave has its own error codes. Always read your manual to determine what the error code means. Examples of error codes include "E-11", "E-12" and "E-13." This means that you have a defective sensor, and you must get your microwave serviced. The "SE" error code indicates an issue with your control panel.

    Additional Problems

    • You may hear gear noises, especially a humming noise; the fan will automatically come on while your food is cooking. If your turntable plate makes noise, first clean it, and then see that it is positioned correctly over the roller ring. If your nearby appliances are experiencing electrical interference, move your microwave farther away to correct this problem.

Jul 22, 2013 | Microwave Ovens

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GE spacemaker microwave turns off during cooking and display goes black


Step 1:


Door Switch




If the microwave runs for a few seconds and then shuts off, a door switch might have failed intermittently. Check each of the door switches for any signs of overheating, arcing, or burning. Also check each of them for continuity. Replace any of the switches that is visibly damaged or that only has continuity intermittently


mwswitchtest2.jpg

Step 2:

Main Control Board




If the microwave runs for a few seconds and stops there may be a short circuit in the main control board. Check other components first, these boards are often misdiagnosed.


Touchpad and Control Panel




If the microwave runs for a few seconds and stops the touchpad and control panel might be defective. There are several other components that can cause this problem, be sure to check any other components before replacing this board.

Touchpad




If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.

High Voltage Transformer




If the microwave runs for a few seconds and stops the high voltage transformer might have an intermittent short. This is not common. Check other components related to the microwave symptom first.

Thermostat




If the microwave runs for a few seconds and stops the thermostat might be defective. Watch our video on testing thermostat

Step 3:

2_8_2013_11_35_08_am.gif2_8_2013_11_35_30_am.jpg

Step 4:

2_8_2013_11_36_20_am.jpg

Step 5:

2_8_2013_11_37_03_am.jpg

Step 6:

use the DVOM tester and fix it. God bless you

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The owner's manual is here. On page 10 we find:

COOKING IN ONE STAGE
1. Press the POWER button; the Microwave and High
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2. Press the POWER button different times to set the
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3. Press number keys to set the desired cooking time.
OPERATION(CONTINUED)
4. Press the START/+30SEC. button to start cooking;
the Microwave and one of the Cook indicators will
blink and the display will countdown the remaining
cooking time in minutes and seconds. It will beep
five times when cooking is completed.

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


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MY MICROWAVE WILL NOT DO ANYTHING


I couldn't find those exact trouble codes, but a common problem is when the controller gets damp, either from steam rising from the cooktop or someone spraying cleaner directly on the keypad. Cleaners should always be sprayed on a soft cloth, then wipe the keypad with the cloth. Also, GE / Samsung codes of F1, F2 and F3 may be the same since Samsung makes GE microwaves. Those would mean trouble with the temperature sensor, keypad, or control panel. Assuming your control panel is clean and dry, it may be time to call for service.

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