Café Microwaves Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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Door
Display shows DOOR or a door icon; microwave will not start even though the door appears closed.
Door Not Recognized as Closed
E11
Microwave displays E11 and may not respond to sensor cooking commands.
Cavity Temperature Sensor Out of Range
E13
Microwave shows E13 during or after a sensor cook cycle; food may be undercooked or cycle ends abruptly.
Abnormal Humidity Sensor Reading
E41
Microwave displays E41 and will not start; may be associated with door status issues.
Door Switch Logic Error
E42
Microwave shows E42 and will not operate; may occur after door slamming or impact.
Door Latch / Switch Alignment Error
E50
Microwave displays E50 and may not heat; fan and light may still operate.
Magnetron / High-Voltage Protection Error
E70
Microwave shows E70 and may not respond correctly to keypad inputs.
Control Panel Communication Error
E72
Microwave displays E72 and may have a blank or partially lit display.
Display / UI Board Failure
E90
Microwave shows E90 and will not start; may indicate a general control fault.
Internal Control Board Error
F1
Microwave beeps and displays F1 shortly after power-up or when trying to start a cook cycle; keypad may seem unresponsive or random beeping occurs.
Touch Control Panel / Keypad Failure
F2
Microwave stops heating and displays F2; may occur during a cook cycle or when starting a new cycle.
Over-temperature at Control or Cavity Sensor
F3
Microwave displays F3 and will not start a cook cycle; sometimes appears immediately after pressing START.
Open or Shorted Temperature Sensor Circuit
F4
Microwave shows F4 and will not run; may appear intermittently when using sensor cooking modes.
Humidity / Steam Sensor Failure
F5
Microwave displays F5 and will not start; may beep repeatedly when door is opened or closed.
Door Switch / Latch Monitor Failure
F6
Microwave shows F6 and will not start; sometimes appears after a power surge or outage.
Communication Error Between Control Boards
F7
Microwave displays F7 and may beep continuously; keypad may not respond or may act as if a button is stuck.
Stuck Key or Shorted Keypad Matrix
F8
Microwave shows F8 and may stop mid-cycle; fan may run unexpectedly or not at all.
Cooling Fan or Airflow Fault
F9
Microwave displays F9 and will not start; may be associated with power line or configuration issues.
Configuration / Power Line Error
H97
Microwave stops heating and displays H97; fan and light may still operate.
Inverter / Magnetron System Failure
H98
Microwave displays H98 and does not heat; turntable and light may still function.
High-Voltage System Failure
H99
Microwave shows H99 and will not heat; may occur intermittently before becoming constant.
Inverter Overload / Protection Trip
LOC
Display shows LOC or a lock icon; keypad does not respond to cook commands.
Control Lock (Child Lock) Enabled
PF
Display shows PF and the clock is flashing; microwave may have stopped mid-cycle during an outage.
Power Failure Detected
SE
Microwave beeps repeatedly and displays SE; keypad may act as if a button is being pressed continuously.
Keypad Short / Stuck Key Error
Sensor
Display shows SENSOR or SENSOR ERROR during sensor cook or reheat; cycle cancels prematurely.
Sensor Cooking Fault
Symptom
Microwave cavity shows rust, peeling paint, or exposed metal, sometimes accompanied by small sparks.
Cavity Coating Degradation
Symptom
Microwave completely dead – no display, no interior light, no response to any buttons.
No Power – Line Fuse or Power Supply Failure
Symptom
Microwave display is dim, flickering, or partially missing segments, but the unit still operates.
Display / LED Module Degradation
Symptom
Microwave door will not open or is very hard to open; door release button may feel stuck.
Door Latch / Release Mechanism Failure
Symptom
Microwave door will not stay closed or pops open during cooking.
Door Latch Retention Failure
Symptom
Microwave emits a burning smell, plastic odor, or smoke during or after operation.
Overheating / Component or Food Burn
Symptom
Microwave fan and light come on, but the turntable does not move and there is no heating; no error code.
High-Voltage Not Energizing
Symptom
Microwave interior light does not come on when the door is opened or during cooking, but the unit heats normally.
Cavity Lamp Failure
Symptom
Microwave interior light, fan, and turntable run when the door is closed, even without pressing START.
Door Switch / Relay Stuck Closed
Symptom
Microwave keypad and display work, but interior light and fan do not come on when cooking; unit may or may not heat.
Low-Voltage Control vs. High-Voltage Drive Separation
Symptom
Microwave keypad buttons are unresponsive or require very hard presses; some keys work while others do not.
Keypad / Membrane Failure
Symptom
Microwave makes loud buzzing, grinding, or humming noises during operation, louder than normal fan noise.
Abnormal Operating Noise
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 interior light operate normally, no error code displayed.
No Heat – Magnetron / High-Voltage Failure
Symptom
Microwave runs for a few seconds and then shuts off, returning to the clock display without completing the set time.
Premature Shutdown Under Load
Symptom
Microwave takes much longer than usual to heat food; items are lukewarm even after normal cook times.
Reduced Heating Power
Symptom
Microwave trips the household circuit breaker or GFCI outlet when starting a cook cycle.
Overcurrent / Short Circuit Under Load
Symptom
Microwave turntable does not rotate during cooking; food heats unevenly, but everything else appears normal.
Turntable Drive Failure
Symptom
Microwave will not start at all; display is lit and accepts time input, but pressing START does nothing and no error code appears.
No Start – Door Interlock or Control Logic
Symptom
Over-the-range Café microwave vent fan does not run or only runs on one speed when commanded.
Ventilation Fan Motor / Control Failure
Symptom
Over-the-range Café microwave vent fan runs continuously and will not turn off, even when the control shows it as off.
Stuck Vent Fan Relay or Sensor Logic
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| Door |
Display shows DOOR or a door icon; microwave will not start even though the door appears closed.
|
Door Not Recognized as Closed | View Details |
| E11 |
Microwave displays E11 and may not respond to sensor cooking commands.
|
Cavity Temperature Sensor Out of Range | View Details |
| E13 |
Microwave shows E13 during or after a sensor cook cycle; food may be undercooked or cycle ends abruptly.
|
Abnormal Humidity Sensor Reading | View Details |
| E41 |
Microwave displays E41 and will not start; may be associated with door status issues.
|
Door Switch Logic Error | View Details |
| E42 |
Microwave shows E42 and will not operate; may occur after door slamming or impact.
|
Door Latch / Switch Alignment Error | View Details |
| E50 |
Microwave displays E50 and may not heat; fan and light may still operate.
|
Magnetron / High-Voltage Protection Error | View Details |
| E70 |
Microwave shows E70 and may not respond correctly to keypad inputs.
|
Control Panel Communication Error | View Details |
| E72 |
Microwave displays E72 and may have a blank or partially lit display.
|
Display / UI Board Failure | View Details |
| E90 |
Microwave shows E90 and will not start; may indicate a general control fault.
|
Internal Control Board Error | View Details |
| F1 |
Microwave beeps and displays F1 shortly after power-up or when trying to start a cook cycle; keypad may seem unresponsive or random beeping occurs.
|
Touch Control Panel / Keypad Failure | View Details |
| F2 |
Microwave stops heating and displays F2; may occur during a cook cycle or when starting a new cycle.
|
Over-temperature at Control or Cavity Sensor | View Details |
| F3 |
Microwave displays F3 and will not start a cook cycle; sometimes appears immediately after pressing START.
|
Open or Shorted Temperature Sensor Circuit | View Details |
| F4 |
Microwave shows F4 and will not run; may appear intermittently when using sensor cooking modes.
|
Humidity / Steam Sensor Failure | View Details |
| F5 |
Microwave displays F5 and will not start; may beep repeatedly when door is opened or closed.
|
Door Switch / Latch Monitor Failure | View Details |
| F6 |
Microwave shows F6 and will not start; sometimes appears after a power surge or outage.
|
Communication Error Between Control Boards | View Details |
| F7 |
Microwave displays F7 and may beep continuously; keypad may not respond or may act as if a button is stuck.
|
Stuck Key or Shorted Keypad Matrix | View Details |
| F8 |
Microwave shows F8 and may stop mid-cycle; fan may run unexpectedly or not at all.
|
Cooling Fan or Airflow Fault | View Details |
| F9 |
Microwave displays F9 and will not start; may be associated with power line or configuration issues.
|
Configuration / Power Line Error | View Details |
| H97 |
Microwave stops heating and displays H97; fan and light may still operate.
|
Inverter / Magnetron System Failure | View Details |
| H98 |
Microwave displays H98 and does not heat; turntable and light may still function.
|
High-Voltage System Failure | View Details |
| H99 |
Microwave shows H99 and will not heat; may occur intermittently before becoming constant.
|
Inverter Overload / Protection Trip | View Details |
| LOC |
Display shows LOC or a lock icon; keypad does not respond to cook commands.
|
Control Lock (Child Lock) Enabled | View Details |
| PF |
Display shows PF and the clock is flashing; microwave may have stopped mid-cycle during an outage.
|
Power Failure Detected | View Details |
| SE |
Microwave beeps repeatedly and displays SE; keypad may act as if a button is being pressed continuously.
|
Keypad Short / Stuck Key Error | View Details |
| Sensor |
Display shows SENSOR or SENSOR ERROR during sensor cook or reheat; cycle cancels prematurely.
|
Sensor Cooking Fault | View Details |
| – |
Microwave cavity shows rust, peeling paint, or exposed metal, sometimes accompanied by small sparks.
|
Cavity Coating Degradation | View Details |
| – |
Microwave completely dead – no display, no interior light, no response to any buttons.
|
No Power – Line Fuse or Power Supply Failure | View Details |
| – |
Microwave display is dim, flickering, or partially missing segments, but the unit still operates.
|
Display / LED Module Degradation | View Details |
| – |
Microwave door will not open or is very hard to open; door release button may feel stuck.
|
Door Latch / Release Mechanism Failure | View Details |
| – |
Microwave door will not stay closed or pops open during cooking.
|
Door Latch Retention Failure | View Details |
| – |
Microwave emits a burning smell, plastic odor, or smoke during or after operation.
|
Overheating / Component or Food Burn | View Details |
| – |
Microwave fan and light come on, but the turntable does not move and there is no heating; no error code.
|
High-Voltage Not Energizing | View Details |
| – |
Microwave interior light does not come on when the door is opened or during cooking, but the unit heats normally.
|
Cavity Lamp Failure | View Details |
| – |
Microwave interior light, fan, and turntable run when the door is closed, even without pressing START.
|
Door Switch / Relay Stuck Closed | View Details |
| – |
Microwave keypad and display work, but interior light and fan do not come on when cooking; unit may or may not heat.
|
Low-Voltage Control vs. High-Voltage Drive Separation | View Details |
| – |
Microwave keypad buttons are unresponsive or require very hard presses; some keys work while others do not.
|
Keypad / Membrane Failure | View Details |
| – |
Microwave makes loud buzzing, grinding, or humming noises during operation, louder than normal fan noise.
|
Abnormal Operating Noise | 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 interior light operate normally, no error code displayed.
|
No Heat – Magnetron / High-Voltage Failure | View Details |
| – |
Microwave runs for a few seconds and then shuts off, returning to the clock display without completing the set time.
|
Premature Shutdown Under Load | View Details |
| – |
Microwave takes much longer than usual to heat food; items are lukewarm even after normal cook times.
|
Reduced Heating Power | View Details |
| – |
Microwave trips the household circuit breaker or GFCI outlet when starting a cook cycle.
|
Overcurrent / Short Circuit Under Load | View Details |
| – |
Microwave turntable does not rotate during cooking; food heats unevenly, but everything else appears normal.
|
Turntable Drive Failure | View Details |
| – |
Microwave will not start at all; display is lit and accepts time input, but pressing START does nothing and no error code appears.
|
No Start – Door Interlock or Control Logic | View Details |
| – |
Over-the-range Café microwave vent fan does not run or only runs on one speed when commanded.
|
Ventilation Fan Motor / Control Failure | View Details |
| – |
Over-the-range Café microwave vent fan runs continuously and will not turn off, even when the control shows it as off.
|
Stuck Vent Fan Relay or Sensor Logic | View Details |
No matching codes found
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