Parts for Thermador MCEB01: Inside Parts

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.

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.

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.