Hbl8750/Uc12 Parts

The Microswitch is an OEM part for Bosch microwaves. This small but vital part detects when the door is closed and allows the microwave to operate. It works through electromagnetic pulses that tell the control board the door position.

Causes of a bad microswitch can be wear over time if the door has been opened and closed many times, or damage from an accidental impact that jars the switch out of place or breaks internal components. Repairing or replacing it will restore full and safe operation of the door locking system.

Symptoms of a bad microswitch include:

• The microwave failing to start when the door is closed
• The door sensor light staying lit even when the door is securely shut
• Erratic or inconsistent functioning of the door interlock system
• Buzzing or clicking noises coming from the microswitch area

This OEM Bosch part can also be used on Thermador and Gaggenau appliances.

The Sensor is an OEM replacement part for Bosch ranges. It monitors conditions inside the oven compartment such as temperature and diagnosing faults. 

Symptoms of a bad sensor include:

• The oven not heating or cooking unevenly
• Inaccurate temperature readings displayed  
• Erratic or unpredictable ignition/operation  
• Error codes appearing related to sensor faults

Causes of failure can be normal wear over time from high heat exposure, accidental damage compromising sensor integrity, or intrusion of liquids or debris confusing readings.

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore ranges.

The Control Board is an OEM part for Bosch wall ovens. It serves as the main control center for the oven, managing and regulating all the functions, including temperature settings, cooking modes, timers, and the operation of the heating elements. 

Causes of a bad Control Board can include electrical surges, wear and tear from prolonged use, exposure to heat, and moisture or grease buildup that can damage electronic components.

Symptoms of a bad Control Board include:

• The oven not powering on or failing to respond to control inputs
• Display errors or malfunctioning display screen
• Inaccurate temperature regulation or inability to maintain set temperatures
• The oven not completing cooking cycles or shutting off unexpectedly

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.

The Bulb is an OEM part for Bosch ovens. This component provides illumination inside the oven, allowing you to easily monitor the cooking process without opening the door and losing heat.

Causes of a bad bulb can include filament burnout due to extended use, electrical issues that cause power surges, or physical damage from accidental impacts. 

Symptoms of a bad bulb include:

• The oven light not turning on
• Flickering light inside the oven
• Dim or uneven lighting
• The bulb appearing visibly damaged or burnt out

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.

This Bake Element is an OEM part for Bosch Wall Ovens. It's responsible for generating heat for baking and cooking. Continuous exposure to high temperatures can cause wear or damage to this component.

What Causes a Bad Bake Element:
Repeated heating and cooling cycles, as well as exposure to high temperatures, can cause the bake element to deteriorate or fail.

Symptoms of a Bad Bake Element:

• Inconsistent oven heating
• Uneven cooking or baking
• The oven fails to reach set temperatures

This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.

This door seal restores a tight barrier between the oven door and cavity. Replacing a worn gasket helps your oven reach and hold temperature, reduces heat escaping at the door edges, and supports more consistent baking and roasting results.

• Creates a heat-resistant seal around the oven opening
• Helps the oven preheat and maintain set temperature
• Limits heat, steam, and odors from escaping at the door
• Typical signs it needs replacement: visible tears or flattening, heat felt around the door, longer preheat/cook times, or uneven baking

• Disconnect power at the breaker and let the oven cool completely
• Open the door, pull the old seal from its channel, and clean the groove
• Press the new seal evenly into the channel without stretching; ensure corners seat fully
• Close the door to verify uniform contact all around and adjust as needed

This dishwasher water sensor monitors wash-water conditions so the control can adjust cycle time, rinses, and heating for consistent performance. Replace a failed sensor to restore reliable cleaning results and proper automatic cycle adjustments. What it does

• Detects water conditions during the wash cycle and reports to the control
• Helps the dishwasher optimize cycle length, rinses, and energy use
• Common symptoms: unusually long or short cycles, inconsistent cleaning, or sensor-related error messages
• Trigger erratic cycle behavior when the sensor is faulty or contaminated

• One sensor assembly

• Disconnect power and turn off water before servicing
• Access is typically from the underside; place a towel or pan to catch residual water
• Transfer/seat the seal properly if present; fully engage the locking tabs and reconnect the harness
• After installation, run a quick cycle and check for leaks and proper operation

This factory replacement heating element restores proper heat during operation. When the original element is burned out or damaged, installing this part brings temperatures back to spec for reliable cycle performance and effective cleaning, drying, or heating results. What it does:

• Heats water or air to the target temperature as designed by the appliance
• Common symptoms include no heat, lukewarm operation, extended cycle times, poor drying results, or heating-related error codes
• Electrical connections match the original layout on applicable models
• Built to original specifications for consistent, even heating

• 1 heating element

• Disconnect power before servicing; shut off water supply if applicable
• Allow the appliance to cool completely before handling the element
• Note wire orientation and terminal positions; transfer any reusable seals or brackets from the original
• After installation, check for leaks and run a test cycle to ensure proper heating

The Fan is an OEM component specifically designed for select Bosch built-in ovens. As a critical convection element, it circulates internal air currents for optimal heat distribution throughout baking and broiling cycles.

Powerful yet precisely balanced centrifugal motion agitates spacious oven cavities with homogeneous warmth. Aerodynamic fan blades expedite even cooking without hot or cold spots. 

Causes requiring replacement relate to bearing seizure or broken blade attachments disrupting designed circulation. Prolonged heat exposure may cause premature motor failure or cracked housings to no longer sustain needed speeds.

Symptoms signaling the need for a new fan include:

• Inability to effectively circulate air for simultaneous multi-rack cooking  
• Louder than average operation noise accompanied by vibration
• Erratic or ineffective temperature management within cycles

This OEM Bosch replacement fan is also compatible with Thermador, Gaggenau, and some Kenmore built-in ovens employing convection methods. Proper reinstallation restores designed air transfer capabilities for perfect results.
 

The Fuse is an OEM component specifically designed for Bosch microwaves. It protects internal circuits and components from power surges or overloads that could cause damage. Proper functioning defends the appliance from electrical hazards.

Symptoms of a blown fuse can involve the microwave failing to power on or function after prior episodes of tripped internal safety mechanisms. Repeated events increase replacement needs.

Causes of a bad fuse involve normal wear under prolonged power cycling. However, significant power spikes pose greater fuse risks necessitating timely changes to warranty circuit integrity.  

Symptoms of a bad fuse include:

• Microwave fails to turn on or shows no response to controls
• Lightbulb does not illuminate during heating cycles
• Tripped circuit breakers occur frequently

This OEM Bosch part is also compatible with some Thermador, Blomberg, and Miele microwaves. Replace faulty fuses to restore appliance usability and safety.
 

The Oven Door Seal is an OEM part for Bosch ovens and ranges. This door seal fits snugly around the outer edge of the oven door to provide an effective air seal when closed.

Causes of a bad door seal can include damage from normal wear and tear over time, compression from repeated opening and closing of the door, or heat exposure leading to cracking or warping.

Symptoms of a bad door seal include:

• Inefficient or slow heating
• Inability to maintain set oven temperature
• Increased energy costs
• Smoke escaping around door edges when baking

This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.

This display module is the user interface electronics behind the control panel. It drives the indicator lights and reads keypad or touch inputs, restoring clear status feedback and dependable control response when the original module fails.

• Controls the panel's display and indicator lights
• Interprets button or touch inputs from the control panel
• Communicates selections to the main control to run chosen cycles
• Common symptoms: no panel lights, dead or unresponsive controls, intermittent or garbled display, or UI-related error codes

• Disconnect power at the breaker or unplug the appliance before servicing.
• Use ESD protection; handle the module by the edges and avoid stressing any ribbon cables.
• Transfer any trim/overlay and wiring from the original module as applicable; match connector orientation.
• Reassemble, restore power, and verify all control panel functions.

This replacement glass panel restores the smooth, protective surface on the appliance when the original panel is cracked or broken. It helps maintain a clean appearance while shielding the components mounted behind the glass. What it does:

• Forms the visible glass surface on the appliance
• Protects internal components from spills and debris
• Restores a clean, finished look after breakage or heavy scratching
• Common fix for cracked, chipped, shattered, or missing glass

• 1 glass panel

• Disconnect power (and gas, if applicable) and allow the unit to cool completely
• Wear cut-resistant gloves; handle glass carefully
• Transfer any brackets, trim, or seals from the original panel as instructed
• Do not overtighten fasteners; verify proper alignment before restoring power

This convection fan motor drives the oven's internal fan to circulate hot air during convection cooking. Replacing a weak or seized motor restores proper airflow for more even heating, reliable temperatures, and consistent baking and roasting results.

• Powers the convection fan to move heated air across racks for even cooking
• Helps maintain stable cavity temperature and quicker recovery after door openings
• Common symptoms of a failing motor: fan won't turn, intermittent start/stop, loud squeal or grinding, uneven baking/roasting, or a fan-related error

• Disconnect power at the breaker before servicing
• Access from the rear of the unit or through the oven cavity (model dependent); remove the appropriate panel to reach the motor
• Note wire positions and motor orientation; transfer any brackets, grommets, or screws from the original if needed
• Ensure the fan blade spins freely and is properly seated before reassembly

This micro switch is a small, fast-acting on/off switch tripped by a mechanical lever or float to send a signal to the control. Replacing a worn microswitch restores accurate sensing so the appliance starts, stops, and runs when it should. What it does

• Senses the position of a linked mechanism (lever, float, latch) and opens/closes an electrical circuit
• Helps the control enable or disable functions only when conditions are correct
• Failure symptoms include intermittent operation, cycles that won't start, or a unit that keeps running until power is removed

• Disconnect power and, if applicable, shut off water before servicing
• Access the switch and note actuator orientation and terminal layout
• Move wires to the new switch one at a time to maintain correct placement; ensure tight connections
• Manually actuate the mechanism to ensure a positive "click" and proper operation before reassembly

The Magnetron is an OEM part for Bosch microwaves. The magnetron generates microwaves used for cooking and heating food. It contains a magnet and vacuum tube that work together with a high-frequency electrical field to produce electromagnetic waves.

Symptoms of a bad magnetron include:

• Microwave not heating or heating unevenly/inconsistently
• Smell of burning within the microwave
• Tripping of electrical breakers when microwave is operated
• Buzzing or crackling noises emanating from inside the unit

This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.