Parts for Bosch HMB50152UC/05: Control Panel Parts

This electronic control board regulates dishwasher cycles and user interface functions, restoring proper control when the appliance fails to start or behaves erratically. Designed to replace the failed control module for reliable cycle management. What it does:

• Manages wash cycles, timing, and program selection via the dishwasher's user controls
• Interprets sensor inputs and commands valves, motors, and heaters accordingly
• Can resolve symptoms like no power to controls, unresponsive touchpad/buttons, or interrupted/incorrect cycles
• Helps stop error-code-driven shutdowns when the original board has failed

• Disconnect all power to the appliance before beginning work to avoid shock or damage
• Handle the board by the edges and avoid static discharge; use an ESD strap if available
• Verify connector orientation and fully seat all wiring harnesses during reassembly

This electronic control board manages dishwasher cycle selection, timing and user-interface signals so the appliance runs the chosen wash programs. It restores responsive controls and proper cycle sequencing when the original board fails. What it does:

• Receives input from touchpads/controls and starts/stops wash cycles according to selected settings
• Controls timers, relays and communications between components for correct wash/drain/heating actions
• Common symptoms: unresponsive buttons, dishwasher not starting, stuck in one cycle, or inconsistent cycle behavior
• Replaces a defective main control that causes erratic or no control function

• Disconnect power at the breaker or unplug the appliance before starting work
• Handle the board by the edges and avoid static discharge; use an ESD strap if available
• Reinstall mounting screws and connector plugs securely; do not force connectors
• Follow the manufacturer's service instructions for setup, diagnostics or any required configuration

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

The Fixture is an OEM part for Bosch microwaves. This part ensures that the door opens and closes smoothly and securely, maintaining a proper seal for safe and efficient microwave operation.

Causes of a bad Fixture can include wear and tear from frequent use, damage from accidental impact, or deterioration due to environmental factors.

Symptoms of a bad Fixture include:

• Difficulty in opening or closing the microwave door
• The door not staying closed or securely latched
• Unusual noises when operating the door
• Visible damage or wear to the fastener

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

The  Door Interlock Support is an OEM part for Bosch microwaves. This component ensures that the door interlock switches are correctly positioned and secure, which is crucial for the microwave to operate safely. The interlock system prevents the microwave from running when the door is open.

Causes of a bad door interlock support can include repeated stress from opening and closing the microwave door, physical impact, or wear over time. A compromised interlock support can lead to the microwave not functioning properly or running when the door is open, which is a significant safety hazard.

Symptoms of a bad door interlock support include:

• The microwave not starting or stopping unexpectedly
• Error messages indicating a door issue
• The microwave running when the door is open
• Visible damage or wear to the interlock support

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

The Support is an OEM part for Bosch microwaves. It is designed to hold and stabilize internal components within the microwave, ensuring they remain securely in place during operation for safe and efficient performance.

Over time, the support can become worn out or damaged due to continuous use, exposure to heat, or accidental impacts. Causes of a bad support include cracking, warping, or general weakening of the material, which can compromise the stability of internal parts.

Symptoms of a bad support include:

• Loose or misaligned components inside the microwave
• Unusual noises or vibrations during operation
• Poor performance or uneven heating due to misaligned parts
• Visible damage or deformation of the support

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

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 Switch is an OEM replacement part for Bosch microwaves. It serves as an essential component that controls and regulates various functions and operations of the microwave oven.

Causes of a bad microwave switch can include mechanical wear and tear over time, electrical malfunctions, or physical damage due to mishandling or impact.

Symptoms of a bad microwave switch:

• Difficulty in selecting or changing settings
• Microwave not responding to button presses or inputs
• Erratic behavior, such as randomly changing settings or modes
• Complete failure of the microwave to operate or power on

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

This replacement screw secures appliance panels, brackets, or internal components. Swap out missing, stripped, or corroded hardware to restore a tight, rattle-free fit and keep assemblies properly aligned for reliable everyday use.

• Fastens panels, brackets, or subassemblies to the appliance frame
• Helps maintain alignment and reduce vibration and rattling
• Direct replacement for a worn, corroded, or missing screw
• Typical symptoms: loose panels/handles, gaps or misalignment, rattling noises, visibly missing fastener

• Disconnect power; also shut off water or gas before servicing
• Match head/driver type and length to the original; start threads by hand to avoid cross-threading
• Reuse any original washers or spacers if present
• Tighten snugly—do not overtighten to prevent stripping threads or damaging plastic mounts