Brand: BOSCH
Category: Oven
Document Type: Manual
Language: EN
Manual for BFL423M.0
Uploaded: Nov. 21, 2025, 6:02 p.m.
Warranty Information
The warranty is valid for 24 months from the date of purchase.
Basic Operation: Set desired microwave power (90-800W) and time using the rotary selector. Use pre-programmed settings for specific foods (defrost, cook, heat). The turntable must be in place for operation. Ensure microwave-safe dishes are used. Avoid operating the microwave empty. Follow instructions for specific dishes, including adding liquids and covering food.
Defrosting: Use automatic defrost programs (P01-P04) by selecting the program and entering the food weight. For manual defrosting, use low power settings and turn/stir food periodically.
Heating: Select microwave power and time. Stir or turn food halfway through. Allow food to rest after heating. Be cautious of delayed boiling with liquids.
Defrosting: Use automatic defrost programs (P01-P04) by selecting the program and entering the food weight. For manual defrosting, use low power settings and turn/stir food periodically.
Heating: Select microwave power and time. Stir or turn food halfway through. Allow food to rest after heating. Be cautious of delayed boiling with liquids.
Troubleshooting and error codes
| Disturbance | Cause and troubleshooting |
|---|---|
| Device works not. | The power cord's plug is not plugged in. Connect the device to the power supply. The fuse in the fuse box has blown. Check the fuse in the fuse box. Power supply has failed. Check if the room lights or other devices in the room are working. |
| Dysfunction | 1.Turn off the fuse in the fuse box. 2.Switch the fuse back on after approx. 10 seconds. If the fault was a one-time occurrence, the message disappears. 3.If the message appears again, call customer service. When you call, give the exact error message. → "Customer Service", page 15 |
| Food is cooked long- hotter than before. | Microwave power is set too low. Set the microwave power to a higher level. → Page 9 A larger amount than usual was put into the device. Set a longer duration. For double the amount you need twice the time. |
| Food is colder than usual. | Turn or stir the food occasionally. |
| Turntable scratches or grinds. | There is dirt or foreign objects in the area of the turntable drive. Clean the roller ring and the recess in the cooking chamber. |
| Microwave operation breaks off. | Device has a fault. If this error occurs repeatedly, call customer service. |
| The device is not in operation. A duration is shown on the display. | Adjustment range was accidentally activated. Press . stop After setting up start not pressed. Press or delete the setting by stop press. |
| Three zeros light up on the display. | Power supply has failed. Reset the time. → "Initial commissioning", page 8 |
| The display shows a . M | Demo mode is activated. Disable demo mode. → "Basic settings", page 11 |
| Report 3 appears in the display. | Error in the automatic door opening system. 1. Turn off the device. 2.Wait 10 minutes. 3. Turn the device back on. If this error occurs repeatedly, call customer service. |