Parts for Bosch HMV5052U/02: Convection Parts

The Lock is an OEM part for Bosch microwaves. This part ensures the microwave door closes securely. This lock mechanism plays a vital role in microwave safety, preventing the appliance from operating if the door is not properly closed. 

Causes of a bad Microwave Door Lock can range from normal wear and tear, which gradually degrades the lock's integrity, to accidental damage or misalignment from rough handling. 

Symptoms of a malfunctioning Microwave Door Lock include:

• The microwave refusing to start or stopping unexpectedly, indicating the door isn't securely latched.
• A loose feeling or visible damage to the door lock, suggesting it cannot engage properly.
• Warning signals or error messages displayed by the microwave, pointing to a door closure issue.

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

This replacement screw secures appliance panels and components at their mounting points. Swap in a new screw to restore a tight, rattle-free fit when the original fastener is missing, stripped, or corroded.

• Fastens the designated panel, bracket, or component in place
• Replaces a missing, stripped, or rusted screw
• Helps address loose panels, gaps, rattling, or misalignment at the mounting point
• Maintains proper assembly integrity after service or vibration

• Disconnect power; shut off water supply if working near plumbing
• Match to the removed fastener and replace one at a time to preserve alignment
• Start threads by hand to avoid cross-threading; use the correct driver bit
• Tighten snugly and avoid overtightening, especially into plastic or thin sheet metal

This lever is part of the door lock/latch mechanism. It engages with the latch to allow the door to lock and unlock smoothly, helping the appliance start and run only when the door is securely closed.

• Transfers motion from the handle/lock assembly to engage or release the latch
• Worn or broken levers can cause the door not to latch, not start, or show door-closed errors
• Cause difficulty opening/closing or a loose handle feel when faulty

• Disconnect power and shut off water before servicing
• Access is typically from the inner door panel; retain original screws and clips
• Note the lever's orientation and linkage points before removal
• Test door operation and cycle start after reassembly

The Switch is an OEM part for Bosch microwaves. It plays a role in the safety and functionality of the microwave, acting as a security mechanism that prevents the microwave from operating when the door is open. This ensures that microwave radiation is contained and only in use when the door is securely closed, protecting users from accidental exposure.

Causes of a malfunctioning door switch can range from physical damage, such as cracks or wear from repeated use, to electrical issues like short circuits or disconnections.  

Symptoms of a bad Microwave Door Switch include:

• The microwave fails to start or stops unexpectedly.
• The interior light fails to turn on or off appropriately.
• Unusual sounds when the door is opened or closed.
• The microwave operates only when the door is in a certain position or not at all.

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

The Microwave Switch is an OEM part for Bosch microwaves. It functions as a safety device that ensures the microwave operates only when the door is securely closed.

You should replace this microwave switch if it becomes faulty due to wear and tear, or if it's damaged from electrical issues or physical impact. A malfunctioning switch can prevent the microwave from starting, cause it to stop unexpectedly, or lead to safety hazards by allowing the microwave to run with the door open.

Symptoms of a bad microwave switch include:

• Microwave not starting
• Intermittent operation or shutting off unexpectedly
• Microwave running with the door open
• Error codes related to door or safety switches

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

The Switch is an OEM part for Bosch microwaves. It plays a role in the safety and functionality of the microwave, acting as a security mechanism that prevents the microwave from operating when the door is open. This ensures that microwave radiation is contained and only in use when the door is securely closed, protecting users from accidental exposure.

Causes of a malfunctioning door switch can range from physical damage, such as cracks or wear from repeated use, to electrical issues like short circuits or disconnections.  

Symptoms of a bad Microwave Door Switch include:

• The microwave fails to start or stops unexpectedly.
• The interior light fails to turn on or off appropriately.
• Unusual sounds when the door is opened or closed.
• The microwave operates only when the door is in a certain position or not at all.

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

This temperature regulator is the thermostat control that helps maintain the correct interior temperature by cycling the cooling system on and off. It replaces a failed regulator to restore steady temperature control and reduce temperature swings. What it does:

• Senses and regulates appliance temperature to keep the compartment within set range
• Cycles the compressor or cooling components to maintain consistent cooling
• Commonly used when interior temperature is too warm, fluctuating, or compressor runs continuously
• Works with the appliance's control system to trigger cooling actions as needed

• Disconnect power before servicing to avoid shock or damage
• Handle the sensor and terminals carefully; avoid bending or stressing the connector
• Verify correct orientation and secure mounting; confirm electrical connector is fully seated

This is a genuine replacement screw used to secure components on compatible Bosch appliances, restoring proper fit and function where original fasteners have become lost or damaged. What it does:

• Fastens appliance panels, brackets, or internal components to maintain structural stability
• Replaces stripped, corroded, or missing screws to stop rattling or loose parts
• Helps ensure secure electrical and mechanical connections by holding parts in correct position
• Used where the OEM screw size and thread match the factory application

• One replacement screw as shown

• Verify screw size and thread match the original before installation
• Use appropriate driver bit and moderate torque to avoid stripping threads
• Disconnect power and follow manufacturer safety instructions before accessing internal components

This genuine screw secures panels, brackets, and other components in your appliance. Replacing a missing, rusted, or stripped fastener restores a snug fit, reduces vibration, and helps keep assemblies properly aligned during daily use.

• Fastens panels, brackets, or covers to the appliance chassis
• Helps maintain alignment to reduce looseness and vibration
• Replaces missing, corroded, or stripped hardware

• Disconnect power and shut off water/gas before servicing
• Support the panel or component while removing the damaged screw
• Start the new screw by hand to avoid cross-threading, then tighten until snug—do not overtighten
• If the receiving clip or hole is stripped, repair or replace that hardware before reinstalling

This temperature regulator is the replacement control component that helps maintain proper temperature regulation in your appliance, restoring consistent heating or cooling performance when the original regulator fails. What it does:

• Senses and regulates temperature input to the appliance control system to maintain set temperatures
• Can cause inaccurate temperatures, inconsistent cycling, or failure to heat/cool when worn or faulty
• Replaces a failed or intermittent regulator to restore normal temperature control behavior
• Works as part of the appliance's thermal control circuit

• Disconnect power to the appliance before attempting any service to avoid shock or damage
• Handle the part by its housing; avoid touching electrical contacts or circuit traces
• Basic tools may be required; follow the appliance service manual for access and mounting steps

The Temperature Regulator is an OEM replacement part for Bosch microwaves. It plays a crucial role as an electronic interface governing set temperatures and interior heating levels. Consistent and calibrated regulation is necessary for safe and evenly cooked meals. 

Causes of a bad temperature regulator can include normal wear from continual heating cycles. Water damage from condensation or spills has the potential to impact electrical components.

Symptoms of a bad temperature regulator include:

• Inaccurate or fluctuating interior heat, causing cold or hot spots 
• Temperature settings that do not correspond to actual conditions
• Failure to properly increase or decrease power as programmed
• Sensor malfunctions requiring foods to be under or overcooked 

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models. Replacing it ensures continued precise temperature control and safe, reliable microwave operation.

This high-voltage capacitor stores and releases energy in the microwave's high-voltage circuit that powers the magnetron. Replacing a failed capacitor can help restore heating performance and reduce humming or breaker trips caused by HV faults. What it does:

• Works with the high-voltage transformer and diode to supply the voltage the magnetron needs for heating
• A weak or shorted capacitor may cause the microwave to run but not heat
• May lead to loud humming/buzzing, a blown internal fuse, or tripped circuit breaker
• Bulging, leaking, or burn marks on the capacitor indicate it should be replaced

• Includes 1 high-voltage capacitor

• Disconnect power by unplugging the unit or switching off the dedicated breaker before service
• High-voltage capacitors can retain a dangerous charge even when unplugged; discharge properly and follow safety procedures
• Document wire routing and terminal orientation before removal; transfer any brackets or clips from the original part
• After installation, ensure no voltage remains on the terminals before reassembly and testing

The Diode is an OEM part for Bosch microwaves. This small electronic component regulates electricity flow to heating components.

Causes of failure may relate to stresses from continuous power pulsing. Microwave emissions fluctuate temperatures inside rapidly over time stressing connections.

Symptoms of a bad diode include:

• Inconsistent or incomplete cooking from uneven power distribution
• Failure to properly distribute full heating wattage for expected results
• Error code displays or failure to start due to electrical faults in related boards

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

Replacement electrical fuse that protects the appliance's control circuits from overloads and short circuits. Installing a correct replacement fuse restores circuit protection and can allow the appliance to power up normally after a blown fuse. What it does:

• Protects control and power circuits by opening when excess current or a short occurs.
• Common symptom: appliance is completely dead or the control panel is unresponsive.
• Also used when intermittent power or repeated tripping indicates a failed circuit protector.
• Keeps a failed circuit isolated to help prevent further damage to the control board or wiring.

• Always disconnect power at the breaker or unplug the appliance before inspecting or replacing the fuse.
• Verify the part number and electrical rating on the old fuse matches the replacement; replace only with an identical-rated fuse.
• Test the old fuse for continuity with a multimeter to confirm failure before replacing.