This front rack support helps stabilize and securely position a rack within the appliance. Its sturdy design ensures proper alignment and safe support during loading and unloading.
This microwave turntable motor coupler connects the motor to the glass tray, ensuring smooth and even rotation for consistent cooking results. Designed for durability and precision, it replaces worn or damaged couplers that can cause the tray to wobble or stop turning. This part is essential for maintaining proper microwave performance an...Read mored even heating. Installation is quick and straightforward, requiring only basic tools.
This microwave microswitch functions as a door interlock safety component, preventing the appliance from operating when the door is open. It ensures safe and efficient performance by interrupting power to the microwave when the door is not securely closed. Built for durability, this part is essential for maintaining proper safety standard...Read mores. If your microwave fails to start or operates incorrectly, a faulty door switch may be the cause. Installation requires disconnecting the appliance from power before replacing the switch.
This microwave line fuse is a genuine replacement part designed to protect your appliance from power surges and overheating. It helps restore power when a blown fuse prevents the microwave from turning on and is built to meet the original safety and performance standards. This small metal fuse is easy to replace and is commonly used when ...Read morea microwave suddenly stops working. Be sure to check your model number to ensure it’s the correct fit for your unit.
This microwave turntable tray is a genuine replacement part designed to ensure consistent and even heating during cooking cycles. Made of durable black metal, it rotates smoothly on built-in rollers and sits securely on the coupler inside the microwave cavity. Its rotation helps distribute heat evenly across food surfaces, improving cooki...Read moreng performance. Compatible with select Bosch, Thermador, and Gaggenau microwave models, this OEM tray replaces previous versions and is engineered for a precise fit. For proper installation, refer to the microwave’s owner’s manual to ensure correct placement and alignment with the coupler and roller system.
This waveguide cover protects the interior of the microwave by shielding key components from food splatter and moisture. Made from durable mica material, it helps prevent sparking and keeps the appliance operating safely and efficiently. Designed to match the original fit on select models, it replaces a worn or damaged cover and installs easily once the microwave is disconnected from power.
This support is a replacement structural component designed to hold or stabilize internal assemblies during operation. It helps maintain alignment and durability and is commonly replaced when bent, cracked, or no longer providing adequate support.
The left door interlock support keeps the microwave’s door switch properly aligned so the appliance can detect when the door is fully closed and operate safely. If the switch becomes loose or misaligned, the microwave may fail to start or stop unexpectedly. This sturdy bracket is designed for select models and provides a reliable replacem...Read moreent when the original support is damaged or worn, restoring safe and consistent door-switch operation.
This right-hand microwave door hinge is engineered to support smooth door operation and maintain a secure seal, contributing to the safe and efficient performance of the appliance. It serves as the pivot point for the microwave door, allowing it to open and close reliably while ensuring the unit does not operate when the door is ajar. Pro...Read moreper hinge function is essential for maintaining microwave shielding and preventing radiation leaks. Installation should be performed by a qualified service technician to ensure safety standards are met and internal shielding is correctly tested. This genuine replacement part restores original functionality and helps maintain the integrity of the microwave’s safety mechanisms.
This left-side microwave door hinge is a critical component that supports the door's ability to pivot smoothly open and closed, ensuring reliable access and maintaining the structural integrity of the appliance. Designed for select microwave models, it plays a vital role in the safe operation of the unit, particularly in preserving the sh...Read moreielding necessary to prevent radiation leaks. Constructed for durability and precision, this hinge should be installed by a qualified technician due to the complexity of microwave door mechanisms and the need for post-installation safety testing. Signs of a failing hinge include difficulty opening or closing the door, unusual noises, or visible damage, all of which can compromise performance and safety.
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Mike - For model number HMC80251UC
November 11, 2021
About 5 months ago my microwave stopped working, I removed the covers and found one of the two fuses was blown. I replaced the blown fuse and everything worked well until 3 day ago when the unit again stopped working. Again I found a fuse had blown and replace however the fuse immediately blow when I engage the main breaker. Now with good fuses installed when I turn on the main breaker the breaker immediately trips. Please note the microwave is part of a combination controlled from the same breaker(s) the oven works fine with the microwave fuses not in circuit. Please help, thanks .
Hello Mike, Thank you for the question. This is normally an indication one or more of the Door Switches are defective and causing the surge to trip the breaker or blow the fuse. They can be tested with a Multimeter to check if they are reading Normally Closed or Normally Open. We hope this helps!
About 6 months ago the microwave lost power. I took it apart and found that one of the two 20A fuses blew. I did some research and saw that the door switches were a common issue. I checked all 3 switches with a multimeter and found they all worked perfectly, opened and closed. I put it back together with a new fuse, and it worked fine. Now, 6 months later, it stopped working again. Same problem - blown 20A fuse. I checked each door switch again with a multimeter and had the same results - they work fine. Are there any other issues other than the door switches that would cause the 20A fuse to blow? Thanks!
Hi Tom, thank you for reaching out. If a microwave fuse keeps blowing, it may be because the fuse is not being installed correctly. The most common cause of a blown fuse is when something draws too much power from the circuit. This is most often caused by either too many lights or by using too many plug-in appliances at once. A power surge may also cause the microwave’s main fuse to blow. Experimenting with other power outlets may reveal an issue with the power outlet or electrical wiring that is causing fuses in the microwave to blow. We hope this information is useful!
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John - For model number HMC80251UC
January 7, 2024
Replaced assorted parts including tray motor and new tray . now tray turns for a while and stops.Very remote customer!
Hello John, thank you for reaching out to PartSelect. If the turntable is not installed correctly inside your microwave, it may not spin, and you might hear a thumping or rumbling sound from the appliance. Make sure the turntable is placed right side up and securely on the turntable support hub. Many microwave turntables sit on a roller track to aid in rotation. These roller tracks sit on small wheels that can become blocked by obstructions on the bottom of your microwave. Make sure that the microwave interior is cleared of any packaging material, food or debris that can prevent the wheels from moving freely. If this does not help, we would recommend replacing the drive coupling, part number PS8770347. Good luck with the repair!
after replacing parts including fuses, turntable, door switches and another sensor, the microwave will operate, turntable will turn, light is on, when suddenly the turntable stops. i am afraid to let oven continue so I turn it off. Could it be that if I am heating water, the moisture sensor is turning microwave and turntable off until the fans reduce moisture in cabinet?
Hi John, thank you for getting in touch. We would recommend checking the temperature regulator, part number PS10060775. It is a safety device that shuts off the microwave if it overheats. You may need to replace it to fix the issue. WE hope that helps!
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Right hinge failed - return spring broken
20 of 22 peoplefound this instruction helpful.
WEST from RIDGECREST, CA
Very Difficult
More than 2 hours
Pliers, Screw drivers
I installed a new right hinge (PartSelect part number PS10060784), since the integrated return spring failed. To remove the door, I made two of the special tools required in the Bosch repair manual. I fabricated two square pieces of aluminum, about 30mm on a side and ¼” thick. With the door open (it is horizontal) you place one squ
... Read moreare in each of the cavities that the hinges close into and close the door far enough that the squares take up the force of the springs and allow you to lift the door out. Of course, if one spring is broken, you will not need a square on that side to remove the door but will need it later to install the door with the new hinge. In fact, I installed the square in the replacement hinge before I installed the hinge in the door. Next remove the ventilation duct (Part number PS8770410). There are three screws. When re-installing the duct later, do not overtighten the screws, because they can pull through the duct. This will require longer screws and small flat washers to repair (‘don’t ask me how I know’). The next step is to remove the plastic cover (PartSelect part number PS11705124). It will be impossible to save the plastic cover (‘don’t ask me how I know’). Purchase a new one ahead of time. It will be easier to not scratch the door if you recognize that you are going to destroy the cover. When removing the plastic cover, pieces of some of the tabs that hold the cover in place will break off. The broken-off pieces of the tabs that fit into cavities at the top of the door may remain in the cavities. IF YOU DO NOT PICK OUT THOSE PIECES, THE NEW COVER WILL NOT SNAP HOME DUE TO THE PRESENCE OF THE BROKEN PIECES. You will break the new cover in removing it to figure out why it wouldn’t snap home and will have the pleasure of purchasing a second new cover (‘don’t ask me now I know’). Also, when removing the cover try not to bend the metal fingers of the frame (part number PS8770415), particularly along the top of the door. It is important that the gap between the metal fingers and the frame holding the glass be correct, since that is where the seal (part number PS10061106) must fit when replacing the cover. On the other hand, if the metal fingers are bent too far away from the frame holding the glass, the cover will not line up with the cavities along the top where the tabs go home. It will be easier to protect the metal fingers if you recognize that you will be destroying the cover when you remove it. I did pinch and damage the seal when trying to force the first new cover in place (it didn’t go home, as described above), and had the pleasure of purchasing another seal (currently unavailable). You only get one chance per cover. Once the cover is removed the frame can be removed from the outer door by removing the screws holding the two parts together.
Next, replace the spring.
Next re-attach the frame to the outer door.
Next, be sure the seal is positioned correctly on the cover. The seal has a flap that holds it in place on the cover, such that the seal will be pulled into place when installing the cover. This is essential, since you will not be able to reposition the seal once the cover snaps home (particularly along the top of the door).
Now, carefully position the cover so that it is going to remain parallel with the door when you push it home. You do not want the cover to be cocked, since the seal may not install correctly. Be sure all the tabs are falling into place as you install the cover. Hopefully, the tabs will all snap into place and the seal will stay in place.
Replace the door by feeding the hinges into place with the squares still installed. Open the door fully and remove the squares. The door will close correctly if the hinges are placed correctly. This may take several tries.
Finally, microwave yourself a fresh cup of coffee or other beverage.
This door is not meant to be repaired, in my opinion. I believe Bosch offers only the option of buying a new door. A DIY repair is not risk free.
Replaced the wave cover. Unscrewed existing cover that is at the top inside the microwave. Screwed in the new cover. Took about 30 seconds to do. Bosch service wanted over $100 for a service call plus parts and labor. Did it myself in seconds for under $10.
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Microwave would run for 30 seconds and shut off
5 of 5 peoplefound this instruction helpful.
Scot from FRUITA, CO
Easy
30 - 60 mins
Screw drivers
Thermal switch on top of Magnetron was defective, spade contacts were burned and loose. New switch $6 +shipping. Removed top cover held on with several Philips head screws. Plugged unit in and gave it 30 seconds to test the fan was working, it was. Put 500ml water in cavity, ran it for 60 seconds, which after fiddling with wires it did,
... Read moreand got over 20C temp rise so magnetron was working (detailed instructions online). Switch is right on top of magnetron. Tried to remove spade lugs but lugs pulled out of switch so I cut the lugs off and removed the broken switch. Screwed down new switch using old hardware. Trimmed wires back and cleaned them. Used crimping tool to put on new spade lugs from car parts store. put heat shrink over lugs and wires to strain relief and buttoned the unit up. Microwave works fine and oven baked a cake so good repair.
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