Models > HBL8751UC

HBL8751UC (01) Bosch Microwave - Overview

Sections of the HBL8751UC

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Front Rack Support – Part Number: 00631439
Front Rack Support
★★★★★
★★★★★
(2)
PartSelect #: PS10060770
Manufacturer #: 00631439
$3.53
  In Stock
Rear Rack Support – Part Number: 00631440
Rear Rack Support
★★★★★
★★★★★
(2)
PartSelect #: PS10060771
Manufacturer #: 00631440
$3.53
  In Stock
DRIVE COUPLING – Part Number: 00628013
DRIVE COUPLING
★★★★★
★★★★★
(6)
PartSelect #: PS8770347
Manufacturer #: 00628013
$9.84
  In Stock
Cooking Tray - Black – Part Number: 00795449
Cooking Tray - Black
★★★★★
★★★★★
(3)
PartSelect #: PS10061150
Manufacturer #: 00795449
This tray rotates in the center of the microwave to help ensure the food cooks evenly. The tray sits on the coupler and had built in rollers.
$124.51
  In Stock
FUSE – Part Number: 00631510
FUSE
PartSelect #: PS10060777
Manufacturer #: 00631510
$4.78
  In Stock
SWITCH – Part Number: 00631512
SWITCH
PartSelect #: PS10060778
Manufacturer #: 00631512
$10.29
  In Stock
COVER – Part Number: 00617090
COVER
★★★★★
★★★★★
(1)
PartSelect #: PS9492671
Manufacturer #: 00617090
$8.93
  On Order
SHELF – Part Number: 00798845
SHELF
PartSelect #: PS9495699
Manufacturer #: 00798845
$56.11
  In Stock
SUPPORT – Part Number: 00648812
SUPPORT
PartSelect #: PS8770379
Manufacturer #: 00648812
$6.68
  In Stock
SUPPORT – Part Number: 00648813
SUPPORT
★★★★★
★★★★★
(1)
PartSelect #: PS8770380
Manufacturer #: 00648813
$6.17
  In Stock
LAMP – Part Number: 00623710
LAMP
PartSelect #: PS8728930
Manufacturer #: 00623710
$6.41
  In Stock
DISPLAY MODULE – Part Number: 12029207
DISPLAY MODULE
★★★★★
★★★★★
(1)
PartSelect #: PS12742171
Manufacturer #: 12029207
$191.20
  In Stock

Questions And Answers for HBL8751UC

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Common Symptoms of the HBL8751UC

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Won’t turn on
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Tray won’t turn
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Door not closing properly
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Right hinge failed - return spring broken
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 square 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.
Parts Used:
COVER SEAL
  • WEST from RIDGECREST, CA
  • Difficulty Level:
    Very Difficult
  • Total Repair Time:
    More than 2 hours
  • Tools:
    Pliers, Screw drivers
7 of 7 people found this instruction helpful.
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Microwave was sparking
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.
Parts Used:
COVER
  • Nancy from ST AUGUSTINE, FL
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
4 of 5 people found this instruction helpful.
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The porcelain tri piece the turntable sits on broke.
Pulled out the old piece after removing turntable and put new piece in. Then put turntable back on top.
It's a $9 part and I probably saved at least $200.
Parts Used:
DRIVE COUPLING
  • Denise A from BELLINGHAM, WA
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    30 - 60 mins
2 of 2 people found this instruction helpful.
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