20 Most Recent Maytag MMV5100A Microwave Oven Questions & Answers

That sounds like a wave guide cover that protects food splatter from getting into wave guide. will need to replace that cover and thoroughly clean inside of unit ans around cover. Those covers must be kept clean and dry!!!

That is not good, the magnetron has gone, or the thermal fuse has failed, "protects the magnetron from overheating" There is a possibility the keypad control board was a affected.

Hi,
Here is the link for your Maytag manual.:

http://shared.whirlpoolcorp.com/assets/pdfs/literature/MMV5100AAB.pdf

Note that the manual is a pdf document which requires Adobe Reader. If you don't have Adobe reader installed on your computer, you can download it for free from www.adobe.com

Best wishes,
Graemevm

repairclinic.com has parts for this microwave, give them a try.
Let me know how this works out for you

Benjamin

short circuit in high tension power supply
DUE TO THE VERY HIGH AND DANGEROUS VOLTAGE 4000( V) IT IS NOT WISE TO FIX IT YOUR SELF UNLESS YOU KNOW WHAT YOU ARE DOING

Hate to say this but that bad humming is your magnetron that is buzzing and not operating correctly. A bad high voltage Diode can cause this as can a shorted Capacitor. However about 50% of the time it is the magnetron itself with an internal RF oscillator that is stuck. So you have a 50 - 50 chance of getting off with a reasonable repair cost.

sounds like a crack in the magnetron
a bad transformer
or a bad rectifier
sorry i cant be more help

What usually causes keypad failure is cleaning... spraying it directly with a cleaning solution instead of using a moist cloth on it.
Otherwise, it could be a bad door sensing switch or control PCB. If you haven't already tried this, unplug the unit from the wall outlet for atleast 1 hour and see if it might reset...

Probably blew an internal fuse or a capacitor.

Looks like you'll need a new one

MOST OF THEM YOU CAN TAKE THE SCREWS LOOSE FROMTHE TOP OF THE CABINET OVER THE STOVE, YOU NEED TO PPL, REMOVE TOP SCREWS HOLD IT AN TILT IT AN THEN PULL IT AWAY FROM THE WALL, MOST WALLL BRACKETS HAVE A HOOK THAT THE MICRO MOUNTS TOO IT 90%OF THE WEIGHT IS BEEN HELD BY THE WALL. GOOD LUCK LEAVE SOME FEEDBACK.!

On my Microwave it saying e5 on it and it not reheating it self

Take it in for service. It is nothing that is straightforward, https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..

Hi,

You may even see the orange "glow plug" (called a hot surface igniter) glowing orange and so assume that it's OK. Not necessarily!! You have to measure the current/amp drawn by the igniter and compare it to this repair sheet before you can say it's OK or not. The gas valve has a bi-metal that open when a certain amount of current flows through it to heat it up. The igniter is wired in series with the gas valve. As the igniter gets older or weaker, it's resistance increases to the point where not enough current is flowing to the gas valve bimetal to open it up. As a result, the gas valve never opens up. BTW, a common symptom of the early stages of this problem is erratic temperature control in the oven due to delayed firing of the bake burner while cooking.

The hot surface igniter will not come on - check igniter with a ohm meter, you should have continuity through the glow bar, the glow bar can also crack = new igniter time. The glow bar comes on but the main burner will not light - you should have an amp probe to check properly, but often this is a hot surface igniter problem. The hot surface igniter often looses it's ability to get hot enough to open the gas safety valve. The safety valve can fail, but most times it is just a bad hot surface igniter. The hot surface igniter can also quit part way through cooking , in other words the oven may cycle a couple of times and then it just sits there with the red glow from the igniter. See this service sheet for the proper way and amp readings for the hot surface igniter system. Hot surface igniters do weaken and will eventually generate less heat than they normally could. When this happens they can still allow marginally correct current to flow to the oven gas valve for it to open but not get quite hot enough to ignite the gas burner immediately. When this happens, gas released into the oven can sometimes build up to the point where when finally ignited, the amount of gas lit can cause a small explosion inside the oven or cause an odor of gas with out the oven working. Yes, your glow bar igniter can glow orange-red and still be bad!! How a common gas valve works - click here.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Have you checked inside the microwave? Usually they have the manual hidden in there.

Replace the faulty door switch.

one of micro switch could be bad or the main board issue is there