Monogram Microwaves Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E11
Microwave displays E11 and may not start sensor cooking cycles.
Humidity Sensor Circuit Open
E12
Microwave displays E12 and cancels sensor cooking cycles.
Humidity Sensor Short or Out-of-Range Reading
E21
Microwave displays E21 and may not start convection or combination cooking modes.
Convection Fan Feedback or Motor Error
E22
Microwave displays E22 and stops convection or combination cooking.
Convection Temperature Sensor Error
E30
Microwave displays E30 and will not start; may be associated with door or latch issues.
Door Sensing Circuit Error
E50
Microwave displays E50 and may shut down or refuse to start, often after extended use.
Overtemperature Protection or Thermal Cutout Trip
F1
Microwave beeps and displays F1, will not start a cook cycle or stops shortly after starting.
Keypad or Control Panel Shorted
F2
Microwave displays F2 and may beep continuously; oven may not accept input or may shut down mid-cycle.
Keypad Stuck or Shorted Input
F3
Microwave displays F3 and will not start or stops with an error shortly after beginning a cook cycle.
Oven Temperature Sensor (Thermistor) Failure
F4
Microwave displays F4 and will not run or stops during operation, often associated with temperature or sensor cooking modes.
Shorted Temperature Sensor or Sensor Circuit
F5
Microwave displays F5 and will not start; sometimes appears after a power surge or during high-load cooking.
Relay or Control Board Failure
F6
Microwave displays F6 and may not respond to keypad input or may shut down unexpectedly.
Communication Error Between Keypad and Control Board
F7
Microwave displays F7, may beep continuously, and will not start a cook cycle.
Stuck Function Key or Keypad Matrix Error
F8
Microwave displays F8 and may shut down or refuse to start, often related to cooling or convection functions.
Cooling Fan or Convection Fan Error
F9
Microwave displays F9 and will not start or may shut off during operation.
Door Latch or Door Switch Error
H97
Microwave displays H97 and will not heat; unit may stop shortly after starting.
Inverter / Magnetron Start-Up Failure
H98
Microwave displays H98 and will not heat; fan and light may operate but food remains cold.
High-Voltage Inverter or Magnetron Failure
H99
Microwave displays H99 and stops heating; may occur intermittently during longer cook cycles.
Inverter Overheat or Overcurrent Protection
LOC
Microwave displays LOC or a lock icon and will not start; keypad appears unresponsive except for certain keys.
Control Lock (Child Lock) Activated
PF
Microwave displays PF (Power Failure) and may beep; clock resets and previous settings are lost.
Power Interruption or Line Voltage Issue
SE
Microwave displays SE or "Sensor Error" during sensor cooking modes and stops the cycle.
Humidity / Steam Sensor Failure
Symptom
Microwave causes arcing (sparks) inside the cavity during cooking.
Cavity Arcing / Waveguide Contamination
Symptom
Microwave clock loses time or resets intermittently without showing a PF code.
Control Board Power Supply Instability
Symptom
Microwave completely dead; no display, no lights, no response to keypad.
No Power / Blown Internal Fuse
Symptom
Microwave convection or combination cooking takes much longer than expected or never reaches set temperature.
Convection Heating Performance Issue
Symptom
Microwave display is dim, flickering, or some segments are missing, but cooking functions still work.
Display Module or Control Board Failure
Symptom
Microwave door will not open or is difficult to open after cooking.
Door Latch or Release Mechanism Failure
Symptom
Microwave door will not stay closed or pops open during operation.
Door Latch Misalignment or Worn Hooks
Symptom
Microwave emits a burning smell, electrical odor, or visible smoke during or after operation.
Overheating Component or Electrical Short
Symptom
Microwave exhaust fan on an over-the-range Monogram unit does not run or runs only on some speeds.
Ventilation / Exhaust Blower Failure
Symptom
Microwave interior accumulates excessive condensation or moisture during and after cooking.
Ventilation / Moisture Management Issue
Symptom
Microwave interior light does not come on when the door opens or during cooking, but the unit heats normally.
Cavity Lamp or Lamp Circuit Failure
Symptom
Microwave keypad buttons do not respond or only some keys work intermittently.
Membrane Keypad or User Interface Failure
Symptom
Microwave light, fan, and turntable run when the door is closed but no cook cycle is set, or continue running after the cycle ends.
Stuck Relay or Door Switch Miswiring
Symptom
Microwave makes loud buzzing, humming, or grinding noises during operation, louder than normal fan noise.
Noisy High-Voltage or Mechanical Component
Symptom
Microwave over-the-range surface lights (cooktop lights) do not work or only one brightness level works.
Surface Light Circuit Failure
Symptom
Microwave runs but does not heat food; turntable, light, and fan operate normally but items remain cold.
High-Voltage System Failure (Magnetron / Inverter / Transformer)
Symptom
Microwave runs for a few seconds then shuts off and returns to the clock display without heating fully.
Overheat Protection or Faulty Door Switch Interruption
Symptom
Microwave sensor cooking results are poor: food undercooked or overcooked compared to settings.
Sensor Cooking Calibration or Sensor Contamination
Symptom
Microwave trips the circuit breaker or blows a fuse when starting a cook cycle.
Short Circuit or Overcurrent on Startup
Symptom
Microwave turntable does not rotate during cooking, but heating still occurs.
Turntable Drive Failure
Symptom
Microwave will not start at all; display is lit and accepts input, but pressing Start does nothing.
Door Interlock or Start Circuit Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E11 |
Microwave displays E11 and may not start sensor cooking cycles.
|
Humidity Sensor Circuit Open | View Details |
| E12 |
Microwave displays E12 and cancels sensor cooking cycles.
|
Humidity Sensor Short or Out-of-Range Reading | View Details |
| E21 |
Microwave displays E21 and may not start convection or combination cooking modes.
|
Convection Fan Feedback or Motor Error | View Details |
| E22 |
Microwave displays E22 and stops convection or combination cooking.
|
Convection Temperature Sensor Error | View Details |
| E30 |
Microwave displays E30 and will not start; may be associated with door or latch issues.
|
Door Sensing Circuit Error | View Details |
| E50 |
Microwave displays E50 and may shut down or refuse to start, often after extended use.
|
Overtemperature Protection or Thermal Cutout Trip | View Details |
| F1 |
Microwave beeps and displays F1, will not start a cook cycle or stops shortly after starting.
|
Keypad or Control Panel Shorted | View Details |
| F2 |
Microwave displays F2 and may beep continuously; oven may not accept input or may shut down mid-cycle.
|
Keypad Stuck or Shorted Input | View Details |
| F3 |
Microwave displays F3 and will not start or stops with an error shortly after beginning a cook cycle.
|
Oven Temperature Sensor (Thermistor) Failure | View Details |
| F4 |
Microwave displays F4 and will not run or stops during operation, often associated with temperature or sensor cooking modes.
|
Shorted Temperature Sensor or Sensor Circuit | View Details |
| F5 |
Microwave displays F5 and will not start; sometimes appears after a power surge or during high-load cooking.
|
Relay or Control Board Failure | View Details |
| F6 |
Microwave displays F6 and may not respond to keypad input or may shut down unexpectedly.
|
Communication Error Between Keypad and Control Board | View Details |
| F7 |
Microwave displays F7, may beep continuously, and will not start a cook cycle.
|
Stuck Function Key or Keypad Matrix Error | View Details |
| F8 |
Microwave displays F8 and may shut down or refuse to start, often related to cooling or convection functions.
|
Cooling Fan or Convection Fan Error | View Details |
| F9 |
Microwave displays F9 and will not start or may shut off during operation.
|
Door Latch or Door Switch Error | View Details |
| H97 |
Microwave displays H97 and will not heat; unit may stop shortly after starting.
|
Inverter / Magnetron Start-Up Failure | View Details |
| H98 |
Microwave displays H98 and will not heat; fan and light may operate but food remains cold.
|
High-Voltage Inverter or Magnetron Failure | View Details |
| H99 |
Microwave displays H99 and stops heating; may occur intermittently during longer cook cycles.
|
Inverter Overheat or Overcurrent Protection | View Details |
| LOC |
Microwave displays LOC or a lock icon and will not start; keypad appears unresponsive except for certain keys.
|
Control Lock (Child Lock) Activated | View Details |
| PF |
Microwave displays PF (Power Failure) and may beep; clock resets and previous settings are lost.
|
Power Interruption or Line Voltage Issue | View Details |
| SE |
Microwave displays SE or "Sensor Error" during sensor cooking modes and stops the cycle.
|
Humidity / Steam Sensor Failure | View Details |
| – |
Microwave causes arcing (sparks) inside the cavity during cooking.
|
Cavity Arcing / Waveguide Contamination | View Details |
| – |
Microwave clock loses time or resets intermittently without showing a PF code.
|
Control Board Power Supply Instability | View Details |
| – |
Microwave completely dead; no display, no lights, no response to keypad.
|
No Power / Blown Internal Fuse | View Details |
| – |
Microwave convection or combination cooking takes much longer than expected or never reaches set temperature.
|
Convection Heating Performance Issue | View Details |
| – |
Microwave display is dim, flickering, or some segments are missing, but cooking functions still work.
|
Display Module or Control Board Failure | View Details |
| – |
Microwave door will not open or is difficult to open after cooking.
|
Door Latch or Release Mechanism Failure | View Details |
| – |
Microwave door will not stay closed or pops open during operation.
|
Door Latch Misalignment or Worn Hooks | View Details |
| – |
Microwave emits a burning smell, electrical odor, or visible smoke during or after operation.
|
Overheating Component or Electrical Short | View Details |
| – |
Microwave exhaust fan on an over-the-range Monogram unit does not run or runs only on some speeds.
|
Ventilation / Exhaust Blower Failure | View Details |
| – |
Microwave interior accumulates excessive condensation or moisture during and after cooking.
|
Ventilation / Moisture Management Issue | View Details |
| – |
Microwave interior light does not come on when the door opens or during cooking, but the unit heats normally.
|
Cavity Lamp or Lamp Circuit Failure | View Details |
| – |
Microwave keypad buttons do not respond or only some keys work intermittently.
|
Membrane Keypad or User Interface Failure | View Details |
| – |
Microwave light, fan, and turntable run when the door is closed but no cook cycle is set, or continue running after the cycle ends.
|
Stuck Relay or Door Switch Miswiring | View Details |
| – |
Microwave makes loud buzzing, humming, or grinding noises during operation, louder than normal fan noise.
|
Noisy High-Voltage or Mechanical Component | View Details |
| – |
Microwave over-the-range surface lights (cooktop lights) do not work or only one brightness level works.
|
Surface Light Circuit Failure | View Details |
| – |
Microwave runs but does not heat food; turntable, light, and fan operate normally but items remain cold.
|
High-Voltage System Failure (Magnetron / Inverter / Transformer) | View Details |
| – |
Microwave runs for a few seconds then shuts off and returns to the clock display without heating fully.
|
Overheat Protection or Faulty Door Switch Interruption | View Details |
| – |
Microwave sensor cooking results are poor: food undercooked or overcooked compared to settings.
|
Sensor Cooking Calibration or Sensor Contamination | View Details |
| – |
Microwave trips the circuit breaker or blows a fuse when starting a cook cycle.
|
Short Circuit or Overcurrent on Startup | View Details |
| – |
Microwave turntable does not rotate during cooking, but heating still occurs.
|
Turntable Drive Failure | View Details |
| – |
Microwave will not start at all; display is lit and accepts input, but pressing Start does nothing.
|
Door Interlock or Start Circuit Failure | View Details |
No matching codes found
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