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DIODE

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PartSelect Number PS12584264
Manufacturer Part Number W11256462
Manufactured by Whirlpool
Product Description

DIODE Specifications

This diode, or high voltage diode, is used in microwaves. It is an electrical current control device that ensures power flows in one direction and not the other way. If your microwave produces no heat, heats inconsistently, or gets noisy, replacing this part can be the solution. The tools needed for this replacement are a nutdriver, pliers, and screwdrivers. First remove the microwave cover, then remove the old part by disconnecting the small thermostat. Replace with the new diode. Remember to use the diagram provided by the manufacturer for more instructions.
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Troubleshooting
This part fixes the following symptoms:
No heat | Noisy
This part works with the following products:
Microwave, Microwave Oven Combo, Washer.
This part works with the following products:
Whirlpool, Maytag, KitchenAid, Amana.
Part# W11256462 replaces these:
4393600, 461964697812, 8184664, 8205361, W10163432, W10245187, W10492276, W10492278, W10575765, W10886077, W11222648, WPW10492276, WPW10575765
Questions and Answers

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1 question answered by our experts.
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    Rich
    December 7, 2021
    Maytag MMV 5219 DH1 microwave does not heat and makes loud grinding noise. turntable motor checks okay. I'm wondering If it could be the magnatron.
    For model number W11256462
    Hello Rich, thank you for your question. These symptoms can be caused by a defective diode, capacitor, or magnetron. Your microwave oven is capable of giving you a serious electrical shock, even when it is unplugged. We strongly suggest you seek the assistance of an appliance repair technician when conducting any microwave oven repair. We hope this helps.

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      Customer Repair Stories
       Average Repair Rating: 3.2 / 5.0, 8 reviews. What's this?
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        Sorry, we couldn't find any existing installation instruction that matched.
        no heat
        this problem started two months ago when my micro quit heating up, after all the research most agreed it was the magnetron. taking the micowave apart is not to difficult just make sure you bag all the screws accordingly. the high voltage area is on the right hand side behind a panel. caution there is a capacitor that will bite if your not careful, need to short the circuit between the two connectors with an insulated screw driver it will make a small pop or let it sit for awhile and it will discharge by itself. The magnetron worked for two days then quit, after more research i took it apart again and tightened up all the connections. Worked great on the bench but when i got it back up on the cabinet two dayslater kaput again. so again i take it down and replaced the two cheapest parts in the high voltage system, magnetron thermst fix, and h.v diode. benched tested it this time for 3 days cooking anything that i could think of, worked great. its been one week now afer installtion and it is still working.
        Other Parts Used:
        Thermal Fuse
        • kelvin from san diego, CA
        • Difficulty Level:
          Really Easy
        • Total Repair Time:
          1- 2 hours
        • Tools:
          Nutdriver, Pliers, Screw drivers
        90 of 106 people found this instruction helpful.
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        Microwave not heating, working otherwise
        This was an over-the-range microwave/hood, so the replacement parts were significantly cheaper than buying a new unit.

        Take microwave down (really a two-person job). Remove microwave cover (about 20 philips screws), discharge HV capacitor by shorting terminals to microwave case. Take photos before pulling anything apart. Remove plastic ducting covering part of the magnetron (3 philips screws). Remove old magnetron (4 Torx screws), need to disconnect small thermostat on side (2 philips screws) and replace with new magnetron. Replace HV diode (screw on one end, other end simply plugged into capacitor terminal). Put everything back together and it works fine.
        Other Parts Used:
        MAGNETRON
        • Keith from Chandler, AZ
        • Difficulty Level:
          Easy
        • Total Repair Time:
          30 - 60 mins
        • Tools:
          Screw drivers
        45 of 52 people found this instruction helpful.
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        Humming sound, not heating.
        I turn off the income electricity by shutting down the corresponding circuit breaker. Then, I removed the control panel from the microwave which gave me access to the capacitor and adjacent diode. After that i unscrewed the defective diode and replaced it with the new one and BINGO!
        • Fausto from Miramar, FL
        • Difficulty Level:
          Easy
        • Total Repair Time:
          15 - 30 mins
        • Tools:
          Nutdriver, Pliers, Screw drivers
        30 of 37 people found this instruction helpful.
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        Microwave made very loud noise while on. No heat.
        Unless you have a very comfortable background with electronics and electricity, I don't necessarily recommend taking apart a microwave. If you are very handy and are going to be VERY cautious to follow the rules of discharging caps and testing voltages before moving forward, then go for it. That said, I took the microwave off and apart. Not knowing where to find the parts, I was fortunate that the installer put the instruction book for the microwave inside the front vent slot above the touchpad for reference. it details the location of every part and it tells you very clearly what each part you test should show specific to this microwave on your multimeter. Find this guide online if you don't have it. Turn on the microwave for 20 seconds with a glass of water to make sure it's not heating - that with the noise means it's eeither the magnetron, cap, or diode. Read the notes on this site for all of the basic things to look for with the magnetron, diode, and capacitor. Once comfortable with the guide, locations of those devices, and how to test, then take it down and apart. Unfortunately, I didn't do all those things in that order, and it only wasted a lot of time trying to find the parts. Once I found the parts and put all the screws and covers back for all the areas that didn't need to be accessed for the repair, testing went quickly. The diode was bad. Ordered a new one and had it in 3 days or so. That means your microwave will be apart and sitting somewhere for a little while until you get the part and have time to repair it. Putting the diode back isn't too bad. Reassemble the microwave and put it back up again. If i had to do it again, it would take me 20 to 30 minutes once the microwave was down and on a table. Also, I used some bricks with towels over them or you could use some sawhorses to keep the microwave elevated so you can plug it in and run it after installing the new component. Again, make sure you discharge the cap before touching anything again even if you didn't run it, but just plugged it in.
        • Sleiman from Miami, FL
        • Difficulty Level:
          Easy
        • Total Repair Time:
          More than 2 hours
        • Tools:
          Pliers, Screw drivers
        27 of 33 people found this instruction helpful.
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        Wolud not heat or cook anything.
        Instead of telling you, i have question do you have any instructions on how to do the repair. It would have helped save time on the repair.

        This job took longer then it should have, becasue I did not start right in the begining. I did figure it out quickly after the wrong start.

        You were a big help in picking the right part to correct the problem. You should be able to help with the repair. Thank You
        • Wayne from Wingate, NC
        • Difficulty Level:
          A Bit Difficult
        • Total Repair Time:
          30 - 60 mins
        18 of 33 people found this instruction helpful.
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        Diode had burnt out
        Take off top facing over microwave using screwdriver also protection plate for diode and capaitor. Disconnect diode from frame, bracket to capacitor then remove, disconnect wires leaving diode on capacitor for right connection, replace, rewire done.
        • Benny from OZAN, AR
        • Difficulty Level:
          Really Easy
        • Total Repair Time:
          30 - 60 mins
        • Tools:
          Screw drivers
        3 of 3 people found this instruction helpful.
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        Microwave would run but not heat up the food
        Removed the microwave from above the oven by loosening the two screws above the microwave. As the unit tilted outward lifted up and the whole unit came out all the time feeding the power cord through the cutout for the power cord. After it was out removed the cover and identified the capacitor and made sure it was discharged and removed and replaced the diode. tested before reinstalling and it heated up just fine. Reversed order and reinstalled . Very easy job maybe a second hand to help fish the power cord when installing and removing.
        • Jerry from FORT WORTH, TX
        • Difficulty Level:
          Really Easy
        • Total Repair Time:
          30 - 60 mins
        • Tools:
          Pliers, Screw drivers
        3 of 4 people found this instruction helpful.
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        Not heating up
        Remove “over the stove” unit. Remove unit shell case. Unscrew and disconnect diode. Replace diode. Re-assemble. Put unit back in place.
        • Michael from GLENDALE, CA
        • Difficulty Level:
          Really Easy
        • Total Repair Time:
          15 - 30 mins
        • Tools:
          Screw drivers, Socket set
        1 person found this instruction helpful.
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          Customer Reviews
          Average Rating:
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          6 Reviews
          4.3
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              Model Cross Reference
              This part works with the following models:
              PartSelect Number: PS12584264
              Manufacturer Part Number: W11256462
              Brand
              Model Number
              Description
              Kenmore
              66560601000
              Microwave
              Kenmore
              66560609000
              Microwave
              Kenmore
              66560612000
              Microwave
              Kenmore
              66560617000
              Microwave
              Kenmore
              66560619000
              Microwave
              Kenmore
              66560622000
              Microwave
              Kenmore
              66560629000
              Microwave
              Kenmore
              66560632000
              Microwave
              Kenmore
              66560639000
              Microwave
              Kenmore
              66560652000
              Microwave
              Kenmore
              66560654000
              Microwave
              Kenmore
              66560657000
              Microwave
              Kenmore
              66560659000
              Microwave
              Kenmore
              66560682000
              Microwave
              Kenmore
              66560689000
              Microwave
              Kenmore
              66561601100
              Microwave
              Kenmore
              66561609100
              Microwave
              Kenmore
              66561612100
              Microwave
              Kenmore
              66561612101
              Microwave
              Kenmore
              66561614100
              Microwave
              Kenmore
              66561614101
              Microwave
              Kenmore
              66561617100
              Microwave
              Kenmore
              66561617101
              Microwave
              Kenmore
              66561619100
              Microwave
              Kenmore
              66561619101
              Microwave
              Kenmore
              66561622100
              Microwave
              Kenmore
              66561624100
              Microwave
              Kenmore
              66561627100
              Microwave
              Kenmore
              66561629100
              Microwave
              Kenmore
              66561632100
              Microwave

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