Blomberg Microwaves Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E01
Microwave will not start; display shows E01 immediately after pressing Start.
Door Interlock Safety Circuit Fault
E02
Microwave stops heating shortly after start and displays E02.
Magnetron Overheat Protection Trip
E03
Microwave runs but does not heat; display shows E03 after a few seconds.
High Voltage System Failure
E04
Microwave stops and displays E04; interior light and fan may continue briefly before shutting down.
Cavity Overheat or Temperature Sensor Fault
E05
Microwave display shows E05 and unit will not start any cooking program.
Touch Control Panel / Keypad Error
E06
Microwave beeps and shows E06; turntable does not rotate during cooking.
Turntable Motor or Position Sensor Error
E07
Microwave shows E07 and stops; fan may run but no heating occurs.
Inverter Power Module Fault (Inverter Models)
E08
Microwave displays E08 and will not accept new cooking commands.
Control Board Communication Error
E09
Microwave shows E09 and beeps; interior light may flash briefly.
Low Line Voltage or Power Supply Error
E10
Microwave displays E10 and the interior light and fan do not turn on when starting a cycle.
Relay Drive or Power Relay Failure
E11
Microwave shows E11 and the interior light does not turn on when the door is opened.
Door Sensing / Door Open Detection Error
E12
Microwave displays E12 and the cooling fan runs continuously even when idle.
Cooling Fan Control Error
E13
Microwave shows E13 and the clock resets or display flickers during operation.
Internal Power Supply Instability
E14
Microwave displays E14 and the grill or convection function (if equipped) will not start.
Grill / Convection Heater Circuit Fault
E15
Microwave shows E15 and stops mid-cycle when using sensor cooking or auto programs.
Humidity / Steam Sensor Fault
E16
Microwave displays E16 and the child lock symbol may appear; buttons do not respond.
Child Lock / Key Lock Malfunction
E17
Microwave shows E17 and emits a continuous beeping sound after setting the clock or timer.
Clock / Timer Circuit Error
E18
Microwave displays E18 and interior light flickers when opening or closing the door.
Door Latch / Interlock Alignment Error
E19
Microwave shows E19 and stops when using combination microwave+grill or microwave+convection modes.
Combination Mode Power Management Error
E20
Microwave displays E20 and the unit becomes unresponsive after a power outage.
EEPROM / Configuration Memory Error
Symptom
Microwave cavity paint is peeling or rust is visible inside.
Cavity Coating Degradation
Symptom
Microwave clock or display is dim, flickering, or partially missing segments.
Display Module Degradation
Symptom
Microwave completely dead; no display, no light, no response.
No Power – Primary Supply Failure
Symptom
Microwave door will not open or is very difficult to open after cooking.
Door Latch / Release Mechanism Jam
Symptom
Microwave door will not stay closed or pops open during operation.
Door Latch Retention Failure
Symptom
Microwave emits a burning smell or smoke during operation.
Overheating or Component Burnout
Symptom
Microwave fan continues to run for a long time after cooking has finished.
Cooling Fan Overrun or Stuck Relay
Symptom
Microwave heats unevenly; some areas of food are very hot while others remain cold.
Uneven Heating / Standing Wave Pattern Issues
Symptom
Microwave interior light does not turn on during cooking or when the door is opened, but the unit still heats.
Interior Lamp Failure
Symptom
Microwave is excessively noisy during operation (rattling, grinding, or scraping sounds).
Mechanical Noise / Vibration
Symptom
Microwave keypad buttons are unresponsive or respond intermittently; no specific error code.
Keypad / Touch Panel Failure
Symptom
Microwave leaks steam or moisture around the door and control panel during cooking.
Excessive Condensation / Door Seal Issue
Symptom
Microwave makes loud buzzing or humming noise while running, louder than normal, with reduced or no heating.
Noisy High Voltage Transformer or Magnetron
Symptom
Microwave produces sparks or arcing inside the cavity during cooking.
Cavity Arcing / Waveguide Contamination
Symptom
Microwave runs but does not heat food; turntable and light work normally, no error code displayed.
No Heating – High Voltage System Failure
Symptom
Microwave runs for a few seconds then stops and resets to the clock without heating the food.
Intermittent Power or Safety Cut-Out
Symptom
Microwave time counts down too fast or too slow compared to real time.
Timer / Clock Calibration Error
Symptom
Microwave trips the household circuit breaker or blows a fuse when starting a cooking cycle.
Short Circuit or Overcurrent on Startup
Symptom
Microwave turntable does not rotate, but heating still occurs.
Turntable Drive Failure
Symptom
Microwave will not start at all; display is on but pressing Start does nothing and no error code appears.
Start Circuit / Interlock Inhibit
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Microwave will not start; display shows E01 immediately after pressing Start.
|
Door Interlock Safety Circuit Fault | View Details |
| E02 |
Microwave stops heating shortly after start and displays E02.
|
Magnetron Overheat Protection Trip | View Details |
| E03 |
Microwave runs but does not heat; display shows E03 after a few seconds.
|
High Voltage System Failure | View Details |
| E04 |
Microwave stops and displays E04; interior light and fan may continue briefly before shutting down.
|
Cavity Overheat or Temperature Sensor Fault | View Details |
| E05 |
Microwave display shows E05 and unit will not start any cooking program.
|
Touch Control Panel / Keypad Error | View Details |
| E06 |
Microwave beeps and shows E06; turntable does not rotate during cooking.
|
Turntable Motor or Position Sensor Error | View Details |
| E07 |
Microwave shows E07 and stops; fan may run but no heating occurs.
|
Inverter Power Module Fault (Inverter Models) | View Details |
| E08 |
Microwave displays E08 and will not accept new cooking commands.
|
Control Board Communication Error | View Details |
| E09 |
Microwave shows E09 and beeps; interior light may flash briefly.
|
Low Line Voltage or Power Supply Error | View Details |
| E10 |
Microwave displays E10 and the interior light and fan do not turn on when starting a cycle.
|
Relay Drive or Power Relay Failure | View Details |
| E11 |
Microwave shows E11 and the interior light does not turn on when the door is opened.
|
Door Sensing / Door Open Detection Error | View Details |
| E12 |
Microwave displays E12 and the cooling fan runs continuously even when idle.
|
Cooling Fan Control Error | View Details |
| E13 |
Microwave shows E13 and the clock resets or display flickers during operation.
|
Internal Power Supply Instability | View Details |
| E14 |
Microwave displays E14 and the grill or convection function (if equipped) will not start.
|
Grill / Convection Heater Circuit Fault | View Details |
| E15 |
Microwave shows E15 and stops mid-cycle when using sensor cooking or auto programs.
|
Humidity / Steam Sensor Fault | View Details |
| E16 |
Microwave displays E16 and the child lock symbol may appear; buttons do not respond.
|
Child Lock / Key Lock Malfunction | View Details |
| E17 |
Microwave shows E17 and emits a continuous beeping sound after setting the clock or timer.
|
Clock / Timer Circuit Error | View Details |
| E18 |
Microwave displays E18 and interior light flickers when opening or closing the door.
|
Door Latch / Interlock Alignment Error | View Details |
| E19 |
Microwave shows E19 and stops when using combination microwave+grill or microwave+convection modes.
|
Combination Mode Power Management Error | View Details |
| E20 |
Microwave displays E20 and the unit becomes unresponsive after a power outage.
|
EEPROM / Configuration Memory Error | View Details |
| – |
Microwave cavity paint is peeling or rust is visible inside.
|
Cavity Coating Degradation | View Details |
| – |
Microwave clock or display is dim, flickering, or partially missing segments.
|
Display Module Degradation | View Details |
| – |
Microwave completely dead; no display, no light, no response.
|
No Power – Primary Supply Failure | View Details |
| – |
Microwave door will not open or is very difficult to open after cooking.
|
Door Latch / Release Mechanism Jam | View Details |
| – |
Microwave door will not stay closed or pops open during operation.
|
Door Latch Retention Failure | View Details |
| – |
Microwave emits a burning smell or smoke during operation.
|
Overheating or Component Burnout | View Details |
| – |
Microwave fan continues to run for a long time after cooking has finished.
|
Cooling Fan Overrun or Stuck Relay | View Details |
| – |
Microwave heats unevenly; some areas of food are very hot while others remain cold.
|
Uneven Heating / Standing Wave Pattern Issues | View Details |
| – |
Microwave interior light does not turn on during cooking or when the door is opened, but the unit still heats.
|
Interior Lamp Failure | View Details |
| – |
Microwave is excessively noisy during operation (rattling, grinding, or scraping sounds).
|
Mechanical Noise / Vibration | View Details |
| – |
Microwave keypad buttons are unresponsive or respond intermittently; no specific error code.
|
Keypad / Touch Panel Failure | View Details |
| – |
Microwave leaks steam or moisture around the door and control panel during cooking.
|
Excessive Condensation / Door Seal Issue | View Details |
| – |
Microwave makes loud buzzing or humming noise while running, louder than normal, with reduced or no heating.
|
Noisy High Voltage Transformer or Magnetron | View Details |
| – |
Microwave produces sparks or arcing inside the cavity during cooking.
|
Cavity Arcing / Waveguide Contamination | View Details |
| – |
Microwave runs but does not heat food; turntable and light work normally, no error code displayed.
|
No Heating – High Voltage System Failure | View Details |
| – |
Microwave runs for a few seconds then stops and resets to the clock without heating the food.
|
Intermittent Power or Safety Cut-Out | View Details |
| – |
Microwave time counts down too fast or too slow compared to real time.
|
Timer / Clock Calibration Error | View Details |
| – |
Microwave trips the household circuit breaker or blows a fuse when starting a cooking cycle.
|
Short Circuit or Overcurrent on Startup | View Details |
| – |
Microwave turntable does not rotate, but heating still occurs.
|
Turntable Drive Failure | View Details |
| – |
Microwave will not start at all; display is on but pressing Start does nothing and no error code appears.
|
Start Circuit / Interlock Inhibit | View Details |
No matching codes found
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