Parts for Bosch HMV3052U/01: Mag Assembly 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 is a replacement mounting nut used to secure components on compatible Bosch appliances. It restores proper fastening to reduce movement and noise from loose connections. What it does:

• Secures panels, assemblies or brackets to prevent shifting during operation
• Restores proper clamp force where a stripped or missing nut causes looseness
• Helps eliminate rattling or vibration caused by unsecured parts
• Provides a direct replacement for the original fastener

• Turn off and unplug the appliance or shut off power at the breaker before servicing
• Use the correct-size wrench or socket to avoid rounding the nut
• Tighten to a snug fit; avoid over-tightening which can strip threads or damage parts

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 Door Switch is an OEM part for Bosch microwaves. This part ensures that the microwave oven does not operate unless the door is securely closed, a critical safety feature to prevent exposure to microwave radiation. The switch interacts with the microwave’s control system, signaling when the door is closed and it's safe to initiate cooking. 

Causes of a bad Door Switch can include mechanical wear and tear from regular use, leading to a failure to engage properly.  

Symptoms of a bad Door Switch in a microwave include:

• The microwave not starting or operating when the door is closed.
• Intermittent operation or sudden stopping of the microwave during use, suggesting the door switch is not consistently engaged.
• The microwave continuing to operate when the door is opened, indicating a serious safety concern.

This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select 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 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 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 is a replacement mounting screw used to secure panels and components in compatible Bosch appliances. It restores proper fastening to help eliminate loose parts, rattles, and misaligned panels during operation. What it does:

• Secures panels, brackets, trim pieces, or small components to restore stable attachment
• Prevents movement that can cause rattling, noise, or misalignment
• Replaces missing or stripped hardware to help maintain normal function and safety
• Small, unobtrusive fastener designed for OEM-fit replacement

• Disconnect power to the appliance before servicing to avoid shock or injury
• Use the correct-size screwdriver or driver bit to avoid stripping the head
• Tighten securely but avoid overtightening, which can strip threads or crack plastic
• Keep small parts out of reach of children and retain any removed hardware for reassembly

This high-voltage capacitor helps stabilize and smooth the appliance's high-voltage supply, supporting reliable operation of inverter and power-control circuits. Replacing a failing capacitor can stop intermittent power faults and erratic control behavior. What it does:

• Stores and releases energy to stabilize the appliance's high-voltage supply
• Reduces voltage spikes and helps prevent arcing in power-control circuits
• Supports proper operation of inverter-driven motors and electronic controls
• Common symptom: appliance has intermittent power loss, fault codes, or won't start due to unstable high-voltage supply

• Disconnect power at the breaker and unplug the appliance before servicing
• Capacitors can hold charge after power is removed—discharge safely and verify with a meter before touching terminals
• Handle by the body and avoid shorting terminals; use insulated tools

This high-voltage diode directs and converts the microwave oven's high-voltage current so the magnetron can produce heat. Replacing a faulty diode restores proper high-voltage function and helps the oven heat consistently. What it does:

• Converts high-voltage AC to DC for the magnetron, enabling cooking heat
• Blocks reverse current to protect the high-voltage circuit
• Commonly linked to no-heat or weak-heat symptoms and intermittent operation
• Works with other high-voltage components—check transformer and capacitor when diagnosing

• One diode

• High-voltage circuits can retain lethal charge; disconnect power and discharge the high-voltage capacitor before servicing
• Only install if you can safely access microwave high-voltage components and follow OEM instructions
• Inspect and replace any damaged wiring or connectors when installing this diode

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.