EasyApplianceParts is now PartSelect! We've merged our sites to provide a better shopping experience for you.   Full Details
✖

Find Parts

Parts Departments

Top Model Types

Top Brands

Repair Help

Expert Repair Videos

Keep typing for more specific results...

Estate Microwave Electronics

Popular Estate Microwave Electronics

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.
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.
What this part fixes:
  • No heat
  • Noisy
  • Won’t turn on
Installation Instructions
kelvin from san diego, CA
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.
$137.03
In Stock
This authentic high-voltage capacitor stores and supplies electrical energy to the magnetron so that your microwave can heat up your food. It is a cylindrical component located inside the control area of the microwave. If the capacitor malfunctions, you may hear buzzing or humming noises, witness sparks or arcing inside the microwave, or experience inconsistent or no heating of your food. As microwaves use high voltage, exercise extreme caution during the repair process to avoid injury. Even when unplugged, the capacitor retains a significant electrical charge. To replace it, start by unplugging the microwave and removing the glass turntable and support before proceeding. Refer to the user guide for instructions on accessing the capacitor within the cabinet. Discharge the capacitor by creating a short circuit between each terminal and between each terminal and the chassis. Do so by using a pair of insulated-handle needle-nose pliers to simultaneously touch both terminals. Alternatively, you can use a well-insulated screwdriver, touching one terminal and gently sliding it forward to the other terminal, holding it there for a few seconds. Avoid touching the metal part of the tool and be aware that this can result in a loud and startling popping sound. Once discharged, you can safely disconnect the wires and remove the mounting fasteners. Please note that this OEM replacement part is sold individually.
This authentic high-voltage capacitor stores and supplies electrical energy to the magnetron so that your microwave can heat up your food. It is a cylindrical component located inside the control area of the microwave. If the capacitor malfunctions, you may hear buzzing or humming noises, witness sparks or arcing inside the microwave, or experience inconsistent or no heating of your food. As microwaves use high voltage, exercise extreme caution during the repair process to avoid injury. Even when unplugged, the capacitor retains a significant electrical charge. To replace it, start by unplugging the microwave and removing the glass turntable and support before proceeding. Refer to the user guide for instructions on accessing the capacitor within the cabinet. Discharge the capacitor by creating a short circuit between each terminal and between each terminal and the chassis. Do so by using a pair of insulated-handle needle-nose pliers to simultaneously touch both terminals. Alternatively, you can use a well-insulated screwdriver, touching one terminal and gently sliding it forward to the other terminal, holding it there for a few seconds. Avoid touching the metal part of the tool and be aware that this can result in a loud and startling popping sound. Once discharged, you can safely disconnect the wires and remove the mounting fasteners. Please note that this OEM replacement part is sold individually.
What this part fixes:
  • No heat
$43.18
Special Order
Store the electrical energy needed by a microwaves high-voltage heating system with this replacement capacitor. During cooking, the capacitor works with the transformer, diode, and magnetron to help create the energy that heats food. A faulty capacitor may be linked to no heat, loud buzzing, or a fuse that blows when cooking begins. However, these signs can also come from other high-voltage components, so proper testing is important. Microwave capacitors may hold a deadly electrical charge even after the power cord is unplugged. For this reason, testing and installation must be completed by a qualified appliance service technician.
Store the electrical energy needed by a microwaves high-voltage heating system with this replacement capacitor. During cooking, the capacitor works with the transformer, diode, and magnetron to help create the energy that heats food. A faulty capacitor may be linked to no heat, loud buzzing, or a fuse that blows when cooking begins. However, these signs can also come from other high-voltage components, so proper testing is important. Microwave capacitors may hold a deadly electrical charge even after the power cord is unplugged. For this reason, testing and installation must be completed by a qualified appliance service technician.
What this part fixes:
  • No heat
Usually found kitchen appliances, this OEM-certified diode cable assembly helps to convert power from the transformer to the magnetron, to heat up your food. A damaged cable assembly will cause your appliance to heat food inconsistently or to not work at all. You might notice a burning smell or a loud buzzing sound coming from your appliance. If you do not replace a broken cable assembly, the components that produce heat in your appliance can overheat and fail. To replace your cable assembly, start by unplugging your appliance from any electrical source. Remove any protective casing from the assembly by unthreading any screws or clips. Disconnect the cable assembly from the transformer and the magnetron with pliers. Reinstalling a new cable assembly requires you to reverse the previous steps. Please keep in mind that this cable assembly is sold individually.
Usually found kitchen appliances, this OEM-certified diode cable assembly helps to convert power from the transformer to the magnetron, to heat up your food. A damaged cable assembly will cause your appliance to heat food inconsistently or to not work at all. You might notice a burning smell or a loud buzzing sound coming from your appliance. If you do not replace a broken cable assembly, the components that produce heat in your appliance can overheat and fail. To replace your cable assembly, start by unplugging your appliance from any electrical source. Remove any protective casing from the assembly by unthreading any screws or clips. Disconnect the cable assembly from the transformer and the magnetron with pliers. Reinstalling a new cable assembly requires you to reverse the previous steps. Please keep in mind that this cable assembly is sold individually.
What this part fixes:
  • No heat
$163.02
In Stock
This microwave magnetron is a critical component that generates the microwave energy needed to heat food. As a high-voltage tube, it converts electrical energy into microwave radiation for efficient and even cooking. If your microwave runs but does not heat, produces weak or uneven heating, or emits unusual humming, sparking, or burning smells, the magnetron may need replacement. Built for durability and precision, this part restores proper heating performance.
This microwave magnetron is a critical component that generates the microwave energy needed to heat food. As a high-voltage tube, it converts electrical energy into microwave radiation for efficient and even cooking. If your microwave runs but does not heat, produces weak or uneven heating, or emits unusual humming, sparking, or burning smells, the magnetron may need replacement. Built for durability and precision, this part restores proper heating performance.
What this part fixes:
  • No heat
Installation Instructions
Keith from Chandler, AZ
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.
Original Equipment Manufacturer

MAKE THIS REPAIR A GUARANTEED WIN

OVER 2 MILLION PARTS TO ENSURE VICTORY

$47.40
In Stock
This part allows power to go only one way.
This part allows power to go only one way.
What this part fixes:
  • No heat
Installation Instructions
Joseph from Newcastle, WA
Mwave not generating microwaves, all else working
-Removed cover ("Star-pin" head security bit needed for this)
- Removed leads from hi-voltage capacitor
- Shorted cap leads with insulated wire to make sure it was dis-charged.
- Removed cap and the the hi-voltage diod
- Installed new parts.

Unfortunatly, still no mwaves (heat) produced, so this means it is the magantron that is dead. Will replace that next.
This part is used to generate microwave energy/heat.
This part is used to generate microwave energy/heat.
What this part fixes:
  • No heat
Installation Instructions
Sandra from coto de caza, CA
loud buzzing noise
The repair went well...I am so glad that I read this info before buying a new microwave....it saved me lots of money. I did have a repair man come and look at it and he told me to buy a new one but it cost alot of money when it wasn't necessary. I did the repair and I was very proud of myself.
Three men watched a woman fix this and it was no problem...they were impressed also....
$170.63
Special Order
This part is used to generate microwave energy/heat.
This part is used to generate microwave energy/heat.
$22.52
In Stock
$185.35
Special Order
This part is used to generate microwave energy/heat.
This part is used to generate microwave energy/heat.
Installation Instructions
Clifford from YORK, PA
Microwave Had all functions , no heat
Had to remove unit from above stove, this step will take the longest. With unit on table cushioned with a throw rug under it . I removed the case and located the magnetron removed 3 screws, unplugged unit with a needle nose pliers, installed new unit plugged it in and checked the microwave with a cold coffee cup of water . Worked great! Heated great!

More Estate Microwave Parts

People often need to fix these common parts