Bosch Series 800 Microwave Troubleshooting Guide

The Bosch Series 800 microwave is a high-quality appliance that offers convenient cooking and heating options. However, like any electronic device, it may encounter issues from time to time. In this troubleshooting guide, we will address common problems that users may face with the Bosch Series 800 microwave and provide solutions to resolve them.

Error Codes

The error codes indicate different types of malfunctions in the microwave. You can find the meaning and possible causes of each error code in the service manual. Some error codes can be cleared by pressing the cancel button, while others may require professional service. Follow the instructions in the service manual to troubleshoot the error codes. Here are some examples of common error codes and their solutions:

• • • E1: Thermistor open. This means that the temperature sensor is not working properly. If detected, revert to plug in mode (Display the error code for 3 seconds)³. You may need to replace the thermistor or check the wiring.
    • E2: Safety time. This means that the microwave has exceeded the maximum cooking time. Press the cancel button to clear the error code. Do not use the microwave for longer than recommended in the user manual.
    • E3: Damper function failed. This means that the damper motor is not operating correctly. The damper is a device that controls the air flow in the microwave. If detected, revert to plug in mode (Display the error code for 3 seconds)³. You may need to replace the damper motor or check the wiring.
    • E4: Thermistor short. This means that the temperature sensor is short-circuited. If detected, revert to plug in mode (Display the error code for 3 seconds). You may need to replace the thermistor or check the wiring.
    • E17: Preheat fail. This means that the microwave did not reach the target temperature within 15 minutes³. Press the cancel button to clear the error code. Make sure that the door is closed properly and that there is no obstruction in the air vents. You may need to replace the heating element or check the wiring.

Microwave Does Not Power On

If your Bosch Series 800 microwave does not power on at all, there are a few potential causes and solutions to consider:

1. Check Power Source: Ensure that the microwave is properly plugged into a functioning power outlet. If it is plugged in, try plugging another device into the same outlet to verify if there is an issue with the power source.
2. Reset Circuit Breaker: If the microwave is plugged into a GFCI outlet or a circuit breaker, check if it has tripped. Reset the circuit breaker or press the “Reset” button on the GFCI outlet to restore power.
3. Check Control Panel: Examine the control panel for any error messages or indicators. If there is an error message displayed, consult the user manual or contact Bosch customer support for further assistance.
4. Faulty Power Cord or Fuse: If none of the above steps work, the power cord or fuse of the microwave may be defective. In this case, it is recommended to contact a qualified technician or Bosch customer support for repair or replacement.

Microwave Not Heating

If your Bosch Series 800 microwave powers on but does not heat food properly, follow these troubleshooting steps:

1. Ensure Proper Use: Check if you are using microwave-safe cookware and that it is placed correctly in the microwave. Improper use of non-microwave-safe containers or incorrect placement can prevent proper heating.
2. Check Power Settings: Make sure that the microwave is set to the desired power level and cooking time. Incorrect power settings may result in inadequate heating.
3. Reset and Restart: Turn off the microwave and unplug it from the power source for a few minutes. Then, plug it back in and try heating food again. This simple reset may resolve any temporary issues.
4. Examine Door and Door Switches: Inspect the microwave door and ensure that it is closed securely. If the door is not closing properly, the microwave will not start heating. Additionally, check the door switches to see if they are functioning correctly. Faulty door switches can prevent the microwave from heating.
5. Check Magnetron: The magnetron is the component responsible for generating microwave heat. If it is defective, the microwave will not heat properly. It is recommended to contact a qualified technician or Bosch customer support for magnetron replacement.

Microwave Display Not Working

If the display of your Bosch Series 800 microwave is not functioning properly, try these troubleshooting steps:

1. Check Power Connection: Ensure that the microwave is properly plugged into a functioning power outlet. If it is plugged in, try plugging another device into the same outlet to verify if there is an issue with the power source.
2. Reset Circuit Breaker: If the microwave is plugged into a GFCI outlet or a circuit breaker, check if it has tripped. Reset the circuit breaker or press the “Reset” button on the GFCI outlet to restore power.
3. Inspect Control Panel: Examine the control panel for any physical damage, loose connections, or debris. Clean the control panel gently with a soft cloth and check if the display starts working again.
4. Restart Microwave: Turn off the microwave and unplug it from the power source for a few minutes. Then, plug it back in and power it on. This simple restart may resolve any temporary display issues.
5. Faulty Display Panel: If the above steps do not work and the display remains non-functional, there may be a problem with the display panel itself. Contact a qualified technician or Bosch customer support for further assistance and potential repair or replacement.

It is important to note that troubleshooting steps may vary depending on the specific model and year of your Bosch Series 800 microwave. For detailed and model-specific troubleshooting guidance, refer to the user manual provided with the appliance or contact Bosch customer support for assistance.