Daewoo
Daewoo Microwaves Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E1
Microwave will not start and displays E1 on the control panel
Door Interlock Switch Failure
E2
Microwave stops heating shortly after start and displays E2
Magnetron Overheat Protection Trip
E3
Microwave runs but does not heat and displays E3
Magnetron or High-Voltage Circuit Failure
E4
Microwave displays E4 and will not start any cooking program
Humidity / Steam Sensor Error
E5
Microwave shows E5 and stops during operation or will not start
Temperature Sensor / Thermistor Error
E6
Microwave displays E6 and beeps, no heating function available
Inverter / Power Module Error (Inverter Models)
E7
Microwave shows E7 and will not accept input or start
Keypad / Touch Control Panel Error
E8
Microwave displays E8 and stops mid-cycle or will not start
Turntable Motor / Rotation Sensor Error
E9
Microwave shows E9 and will not start, sometimes accompanied by unusual humming
High-Voltage Transformer Overcurrent / Short Detection
F1
Microwave displays F1 and beeps, keys may not respond
Control PCB Internal Error
F2
Microwave displays F2 and may stop mid-cycle
Cavity Overheat / Thermal Cut-Out Trip
F3
Microwave shows F3 and will not start, often after a power surge
Temperature Sensor Short / Open (Alternate Code)
F4
Microwave displays F4 and stops heating
Humidity Sensor Short / Open (Alternate Code)
F5
Microwave shows F5 and will not start, often after door operation
Door Switch Logic Error
F6
Microwave displays F6 and may not respond to some functions
Communication Error Between Display PCB and Main PCB
F7
Microwave shows F7 and may shut down unexpectedly
Cooling Fan Feedback / Overheat Error
F8
Microwave displays F8 and will not start, often after a power outage
Low Voltage / Power Supply Error
F9
Microwave shows F9 and may trip the household breaker
Internal Short Circuit Detected
H97
Microwave stops heating and displays H97 (on some inverter Daewoo models)
Inverter / Magnetron Communication Error
H98
Microwave will not heat and displays H98
Inverter High-Voltage Output Failure
H99
Microwave intermittently heats and sometimes displays H99
Intermittent Inverter / Magnetron Protection Trip
SE
Microwave beeps continuously or randomly and displays SE (sometimes interpreted as 5E)
Stuck Key / Shorted Keypad
Symptom
Microwave causes visible sparks or arcing inside the cavity
Cavity Arcing / Waveguide Damage
Symptom
Microwave completely dead – no display, no light, no response
No Power – Primary Power Circuit Failure
Symptom
Microwave display is dim, flickering, or partially missing segments
Display Module / Power Supply Degradation
Symptom
Microwave display works but pressing START does nothing
Start Circuit / Door Interlock Logic Fault
Symptom
Microwave door will not open or is stuck closed after cooking
Door Latch / Release Mechanism Failure
Symptom
Microwave door will not stay closed or pops open during operation
Door Latch Misalignment / Wear
Symptom
Microwave emits a burning smell or smoke during operation
Overheating or Electrical Arcing
Symptom
Microwave has a persistent bad odor even when not in use
Cavity Odor / Contamination
Symptom
Microwave interior is wet with condensation after use, and moisture collects on the door
Excessive Condensation / Ventilation Issue
Symptom
Microwave interior light does not come on, but unit heats and operates normally
Cavity Lamp Failure
Symptom
Microwave is excessively noisy (rattling or vibration) during operation
Cabinet Vibration / Loose Components
Symptom
Microwave keypad buttons are unresponsive or require very hard pressing
Worn or Contaminated Membrane Keypad
Symptom
Microwave light, fan, and turntable come on as soon as the door is closed, without pressing START
Door Switch / Monitor Switch Miswiring or Failure
Symptom
Microwave makes grinding or scraping noise when the turntable rotates
Turntable Mechanical Noise
Symptom
Microwave makes loud buzzing or humming noise during operation, louder than usual
Noisy High-Voltage Transformer or Magnetron
Symptom
Microwave runs (light on, turntable turning, fan running) but does not heat food
No Heat – High-Voltage System Failure
Symptom
Microwave runs but food heats unevenly (hot spots and cold spots)
Uneven Heating / Stirrer or Turntable Issue
Symptom
Microwave runs for a few seconds then shuts off and resets
Overcurrent or Overheat Protection Trip
Symptom
Microwave trips the household circuit breaker when starting
High Inrush Current or Short Circuit
Symptom
Microwave turntable does not rotate, but heating and timer work
Turntable Drive Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Microwave will not start and displays E1 on the control panel
|
Door Interlock Switch Failure | View Details |
| E2 |
Microwave stops heating shortly after start and displays E2
|
Magnetron Overheat Protection Trip | View Details |
| E3 |
Microwave runs but does not heat and displays E3
|
Magnetron or High-Voltage Circuit Failure | View Details |
| E4 |
Microwave displays E4 and will not start any cooking program
|
Humidity / Steam Sensor Error | View Details |
| E5 |
Microwave shows E5 and stops during operation or will not start
|
Temperature Sensor / Thermistor Error | View Details |
| E6 |
Microwave displays E6 and beeps, no heating function available
|
Inverter / Power Module Error (Inverter Models) | View Details |
| E7 |
Microwave shows E7 and will not accept input or start
|
Keypad / Touch Control Panel Error | View Details |
| E8 |
Microwave displays E8 and stops mid-cycle or will not start
|
Turntable Motor / Rotation Sensor Error | View Details |
| E9 |
Microwave shows E9 and will not start, sometimes accompanied by unusual humming
|
High-Voltage Transformer Overcurrent / Short Detection | View Details |
| F1 |
Microwave displays F1 and beeps, keys may not respond
|
Control PCB Internal Error | View Details |
| F2 |
Microwave displays F2 and may stop mid-cycle
|
Cavity Overheat / Thermal Cut-Out Trip | View Details |
| F3 |
Microwave shows F3 and will not start, often after a power surge
|
Temperature Sensor Short / Open (Alternate Code) | View Details |
| F4 |
Microwave displays F4 and stops heating
|
Humidity Sensor Short / Open (Alternate Code) | View Details |
| F5 |
Microwave shows F5 and will not start, often after door operation
|
Door Switch Logic Error | View Details |
| F6 |
Microwave displays F6 and may not respond to some functions
|
Communication Error Between Display PCB and Main PCB | View Details |
| F7 |
Microwave shows F7 and may shut down unexpectedly
|
Cooling Fan Feedback / Overheat Error | View Details |
| F8 |
Microwave displays F8 and will not start, often after a power outage
|
Low Voltage / Power Supply Error | View Details |
| F9 |
Microwave shows F9 and may trip the household breaker
|
Internal Short Circuit Detected | View Details |
| H97 |
Microwave stops heating and displays H97 (on some inverter Daewoo models)
|
Inverter / Magnetron Communication Error | View Details |
| H98 |
Microwave will not heat and displays H98
|
Inverter High-Voltage Output Failure | View Details |
| H99 |
Microwave intermittently heats and sometimes displays H99
|
Intermittent Inverter / Magnetron Protection Trip | View Details |
| SE |
Microwave beeps continuously or randomly and displays SE (sometimes interpreted as 5E)
|
Stuck Key / Shorted Keypad | View Details |
| – |
Microwave causes visible sparks or arcing inside the cavity
|
Cavity Arcing / Waveguide Damage | View Details |
| – |
Microwave completely dead – no display, no light, no response
|
No Power – Primary Power Circuit Failure | View Details |
| – |
Microwave display is dim, flickering, or partially missing segments
|
Display Module / Power Supply Degradation | View Details |
| – |
Microwave display works but pressing START does nothing
|
Start Circuit / Door Interlock Logic Fault | View Details |
| – |
Microwave door will not open or is stuck closed after cooking
|
Door Latch / Release Mechanism Failure | View Details |
| – |
Microwave door will not stay closed or pops open during operation
|
Door Latch Misalignment / Wear | View Details |
| – |
Microwave emits a burning smell or smoke during operation
|
Overheating or Electrical Arcing | View Details |
| – |
Microwave has a persistent bad odor even when not in use
|
Cavity Odor / Contamination | View Details |
| – |
Microwave interior is wet with condensation after use, and moisture collects on the door
|
Excessive Condensation / Ventilation Issue | View Details |
| – |
Microwave interior light does not come on, but unit heats and operates normally
|
Cavity Lamp Failure | View Details |
| – |
Microwave is excessively noisy (rattling or vibration) during operation
|
Cabinet Vibration / Loose Components | View Details |
| – |
Microwave keypad buttons are unresponsive or require very hard pressing
|
Worn or Contaminated Membrane Keypad | View Details |
| – |
Microwave light, fan, and turntable come on as soon as the door is closed, without pressing START
|
Door Switch / Monitor Switch Miswiring or Failure | View Details |
| – |
Microwave makes grinding or scraping noise when the turntable rotates
|
Turntable Mechanical Noise | View Details |
| – |
Microwave makes loud buzzing or humming noise during operation, louder than usual
|
Noisy High-Voltage Transformer or Magnetron | View Details |
| – |
Microwave runs (light on, turntable turning, fan running) but does not heat food
|
No Heat – High-Voltage System Failure | View Details |
| – |
Microwave runs but food heats unevenly (hot spots and cold spots)
|
Uneven Heating / Stirrer or Turntable Issue | View Details |
| – |
Microwave runs for a few seconds then shuts off and resets
|
Overcurrent or Overheat Protection Trip | View Details |
| – |
Microwave trips the household circuit breaker when starting
|
High Inrush Current or Short Circuit | View Details |
| – |
Microwave turntable does not rotate, but heating and timer work
|
Turntable Drive Failure | View Details |
No matching codes found
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