Parts for Thermador MEMCW271ES-01: Microwave Cabinet Parts

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

This microswitch is a small snap-action switch used to detect position and complete control circuits in appliances, restoring reliable on/off or closed/open signaling for door and actuator mechanisms. What it does:

• Acts as a position/limit switch to detect door or actuator positions and send the signal to the control board.
• Restores proper control-circuit continuity so cycles can start or finish when the door or part is in the correct position.
• Common symptom: appliance won't start, stops mid-cycle, or shows a door/lock fault when the switch fails.
• Small, mechanical switching action — responds to an actuator or lever movement.

• One microswitch.

• Disconnect power before accessing or replacing the switch to avoid shock or damage.
• Verify the exact switch location and actuator orientation before removal; note wiring placement or take a photo for reassembly.
• Test continuity with a multimeter only after safely isolating the appliance; replace if it fails to open/close reliably.
• May require partial disassembly of the control panel, door latch, or actuator housing; follow appliance-specific service instructions.

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 PC Board is an OEM component specifically designed for Bosch microwaves. As the central control unit, the PC board regulates and monitors the functioning of the microwave features and components. 

Symptoms of a bad PC board include:

• Lights or display not working properly  
• Inability to start or stop the microwave
• Failure of sensor or preset cooking functions
• Random or unexpected operation of buttons/dials

Causes of a bad PC board can be damage from power surges, spilled liquids inside the unit, or normal wear and tear over several years of use.

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

This replacement interior tray provides a stable surface for holding dishes and components inside the appliance, restoring safe storage and proper water flow. It's a straightforward, direct-fit part for worn, cracked, or damaged trays. What it does

• Replaces a damaged or warped interior tray to restore proper support for dishes and components
• Helps maintain correct water drainage and spray access by holding items in the intended position
• Stops shifting or rattling caused by cracked or broken tray sections
• Useful when visible cracks, breaks, or deformation prevent normal use

• Disconnect power and water before starting work
• Remove surrounding racks or panels for access as needed; handle tray carefully to avoid sharp edges
• Align tray into original mounting points and secure; do not force or modify the part

This turntable support ring is the low-profile roller guide that sits under the microwave's glass tray to keep it centered and allow smooth rotation for even cooking. It restores proper tray movement and reduces scraping or wobble. What it does:

• Supports the glass turntable and keeps it aligned on the motor shaft
• Provides rolling contact so the tray rotates smoothly during use
• Helps prevent the tray from wobbling, sticking, or making grinding noises
• Keeps food from contacting the microwave cavity by maintaining correct tray height

• Always unplug the appliance before removing or installing parts
• Remove the glass tray, set the ring in the cavity track, then replace the tray so it sits evenly on the rollers
• Handle the glass tray carefully to avoid chips or cuts; replace damaged trays or rings
• No special tools required for most installs; consult your model's service instructions

This replacement cover protects internal components and restores the proper fit and finish of the original assembly. It secures nearby parts and helps prevent debris from entering sensitive areas. What it does:

• Covers and shields internal components from dirt and loose debris
• Secures the assembly and helps reduce vibration or rattling
• Replaces cracked, broken or missing covers that cause poor fit or unsecured parts
• Restores original appearance where the factory cover is damaged or lost

• Power off and unplug the appliance (or shut off circuit) before starting work
• Remove necessary access panels or screws to reach the cover; retain hardware for reassembly
• Align cover before fastening; do not force or over-tighten screws to avoid damage

The Relay is an OEM part for use in Bosch microwaves. This part acts as a safety device, monitoring the temperature within the microwave to prevent overheating. If the microwave reaches an unsafe temperature, the relay thermostat will interrupt the power supply to the heating element or magnetron, effectively halting the cooking process to prevent damage or fire.

The need for replacement can arise from a thermostat that has become overly sensitive or has failed completely, often due to repeated exposure to high temperatures or in the event of a significant overheating incident.

Symptoms of a failing Relay include:

• The microwave unexpectedly turning off during use, especially if it hasn't been running long enough to complete the cooking cycle.
• The microwave refusing to start, which can occur if the thermostat is stuck in the open position, indicating an overheat condition even when the appliance is cool.
• Inconsistent cooking results, where the microwave seems to heat intermittently or not at all, suggesting the thermostat may be cutting off power prematurely.

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

The Relay is an OEM part for use in Bosch microwaves. This part acts as a safety device, monitoring the temperature within the microwave to prevent overheating. If the microwave reaches an unsafe temperature, the relay thermostat will interrupt the power supply to the heating element or magnetron, effectively halting the cooking process to prevent damage or fire.

The need for replacement can arise from a thermostat that has become overly sensitive or has failed completely, often due to repeated exposure to high temperatures or in the event of a significant overheating incident.

Symptoms of a failing Relay include:

• The microwave unexpectedly turning off during use, especially if it hasn't been running long enough to complete the cooking cycle.
• The microwave refusing to start, which can occur if the thermostat is stuck in the open position, indicating an overheat condition even when the appliance is cool.
• Inconsistent cooking results, where the microwave seems to heat intermittently or not at all, suggesting the thermostat may be cutting off power prematurely.

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