Viking 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 displays E1 and may not start or may shut off quickly.
Door Switch Circuit Error
E2
Microwave shows E2 and may not heat or may stop mid-cycle, often on sensor cook modes.
Humidity / Steam Sensor Error
E3
Microwave displays E3 and may not start or may shut off quickly, especially on convection or combination modes.
Cavity Temperature Sensor / Thermistor Error
E4
Microwave shows E4 and may not start convection or grill functions.
Convection Fan or Heater Error
E5
Microwave displays E5 and may shut down during long cook cycles or convection use.
Overheat / Thermal Cutout Trip
E6
Microwave shows E6 and will not start; may be associated with turntable or motor issues.
Turntable Motor or Position Sensor Error
E7
Microwave displays E7 and may not start or may shut down; often related to sensor cooking functions.
Sensor Communication Error
E8
Microwave shows E8 and may not start convection or grill functions.
Heater Overheat or Open Circuit
E9
Microwave displays E9 and may not start or may shut down unexpectedly.
Low Voltage or Power Supply Error
F1
Microwave beeps and displays F1, often immediately at power-up or when a key is pressed; unit may not respond to further input.
Keypad or Control Panel Short
F2
Microwave displays F2 and may stop cooking; sometimes appears during or shortly after a cook cycle.
Keypad Stuck Key or Shorted Input Line
F3
Microwave shows F3 and will not start or stops mid-cycle; may be accompanied by erratic temperature readings on convection models.
Oven Temperature Sensor (Thermistor) Failure
F4
Microwave displays F4 and will not start a cook cycle; may appear immediately when power is applied.
Humidity Sensor / Steam Sensor Failure
F5
Microwave shows F5 and will not start; sometimes appears after a power surge or lightning event.
Control Board Relay or Logic Failure
F6
Microwave displays F6 and may not heat or may shut down unexpectedly.
Inverter or Power Supply Communication Error
F7
Microwave shows F7 and may not respond to keypad input or may behave erratically.
Microcontroller / Control Board Failure
F8
Microwave displays F8 and may shut down or refuse to start, often related to cooling or fan operation.
Cooling Fan or Airflow Fault
F9
Microwave shows F9 and will not start; may be associated with door opening/closing.
Door Latch or Door Switch Error
H97
Microwave shows H97 and will not heat; may stop shortly after starting.
Inverter Start-Up Failure
H98
Microwave displays H98 and does not heat; fan and light may still operate.
High-Voltage Inverter / Magnetron Protection Fault
H99
Microwave displays H99 and shuts down or will not start heating.
High-Voltage System Overcurrent / Protection Trip
SE
Microwave displays SE (sometimes interpreted as 5E) and beeps continuously; keypad may be unresponsive.
Keypad Short / Stuck Key Error
Symptom
Microwave clock or timer loses time or resets intermittently.
Control Board Power Stability Issue
Symptom
Microwave convection or grill function does not heat, but standard microwave heating works.
Convection / Grill Heater Failure
Symptom
Microwave display is dim, flickering, or partially missing segments, but the unit still operates.
Display Module or Control Board Failure
Symptom
Microwave does not start at all; display is blank and no lights or sounds when door is opened or buttons are pressed.
No Power / Dead Unit
Symptom
Microwave door will not open or is very hard to open; latch feels stuck.
Door Latch Mechanism Jammed or Broken
Symptom
Microwave door will not stay closed or pops open during cooking.
Door Latch Misalignment or Wear
Symptom
Microwave emits a burning smell, electrical odor, or smoke during or shortly after operation.
Overheating Component or Electrical Short
Symptom
Microwave exterior or control panel becomes very hot to the touch during normal use.
Overheating / Poor Ventilation
Symptom
Microwave has power and display works, but pressing START does nothing; no relay click, no fan or light.
Start Circuit / Door Interlock Fault
Symptom
Microwave interior accumulates condensation or water droplets on walls and door during and after cooking.
Excess Moisture / Condensation
Symptom
Microwave interior is sparking or arcing during cooking; bright flashes may appear on the walls or near the waveguide cover.
Cavity Arcing / Waveguide Contamination
Symptom
Microwave interior light does not come on when the door is opened or during cooking, but the unit otherwise works.
Cavity Lamp Failure
Symptom
Microwave keypad buttons do not respond or respond intermittently; display is on but input is unreliable.
Membrane Keypad Wear or Control Panel Failure
Symptom
Microwave light, fan, and turntable run when the door is closed, even without pressing START.
Door Switch Interlock Miswiring or Failure
Symptom
Microwave makes loud buzzing, humming, or grinding noises during operation, louder than normal.
Noisy High-Voltage or Mechanical Component
Symptom
Microwave runs but does not heat food; turntable, light, and fan operate normally but items remain cold.
High-Voltage System Failure (No Heat)
Symptom
Microwave runs for a few seconds then shuts off and resets or returns to clock; may or may not heat during that time.
Intermittent Door Switch or Overcurrent Shutdown
Symptom
Microwave trips a GFCI outlet when plugged in or when starting a cook cycle.
Ground Fault or Leakage Current
Symptom
Microwave trips the home 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; food heats unevenly.
Turntable Drive Failure
Symptom
Over-the-range Viking microwave does not vent properly; steam and smoke are not being removed from the cooktop area.
Improper Venting / Installation Issue
Symptom
Over-the-range Viking microwave exhaust fan does not run or runs only on one speed.
Exhaust / Vent Fan Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Microwave displays E1 and may not start or may shut off quickly.
|
Door Switch Circuit Error | View Details |
| E2 |
Microwave shows E2 and may not heat or may stop mid-cycle, often on sensor cook modes.
|
Humidity / Steam Sensor Error | View Details |
| E3 |
Microwave displays E3 and may not start or may shut off quickly, especially on convection or combination modes.
|
Cavity Temperature Sensor / Thermistor Error | View Details |
| E4 |
Microwave shows E4 and may not start convection or grill functions.
|
Convection Fan or Heater Error | View Details |
| E5 |
Microwave displays E5 and may shut down during long cook cycles or convection use.
|
Overheat / Thermal Cutout Trip | View Details |
| E6 |
Microwave shows E6 and will not start; may be associated with turntable or motor issues.
|
Turntable Motor or Position Sensor Error | View Details |
| E7 |
Microwave displays E7 and may not start or may shut down; often related to sensor cooking functions.
|
Sensor Communication Error | View Details |
| E8 |
Microwave shows E8 and may not start convection or grill functions.
|
Heater Overheat or Open Circuit | View Details |
| E9 |
Microwave displays E9 and may not start or may shut down unexpectedly.
|
Low Voltage or Power Supply Error | View Details |
| F1 |
Microwave beeps and displays F1, often immediately at power-up or when a key is pressed; unit may not respond to further input.
|
Keypad or Control Panel Short | View Details |
| F2 |
Microwave displays F2 and may stop cooking; sometimes appears during or shortly after a cook cycle.
|
Keypad Stuck Key or Shorted Input Line | View Details |
| F3 |
Microwave shows F3 and will not start or stops mid-cycle; may be accompanied by erratic temperature readings on convection models.
|
Oven Temperature Sensor (Thermistor) Failure | View Details |
| F4 |
Microwave displays F4 and will not start a cook cycle; may appear immediately when power is applied.
|
Humidity Sensor / Steam Sensor Failure | View Details |
| F5 |
Microwave shows F5 and will not start; sometimes appears after a power surge or lightning event.
|
Control Board Relay or Logic Failure | View Details |
| F6 |
Microwave displays F6 and may not heat or may shut down unexpectedly.
|
Inverter or Power Supply Communication Error | View Details |
| F7 |
Microwave shows F7 and may not respond to keypad input or may behave erratically.
|
Microcontroller / Control Board Failure | View Details |
| F8 |
Microwave displays F8 and may shut down or refuse to start, often related to cooling or fan operation.
|
Cooling Fan or Airflow Fault | View Details |
| F9 |
Microwave shows F9 and will not start; may be associated with door opening/closing.
|
Door Latch or Door Switch Error | View Details |
| H97 |
Microwave shows H97 and will not heat; may stop shortly after starting.
|
Inverter Start-Up Failure | View Details |
| H98 |
Microwave displays H98 and does not heat; fan and light may still operate.
|
High-Voltage Inverter / Magnetron Protection Fault | View Details |
| H99 |
Microwave displays H99 and shuts down or will not start heating.
|
High-Voltage System Overcurrent / Protection Trip | View Details |
| SE |
Microwave displays SE (sometimes interpreted as 5E) and beeps continuously; keypad may be unresponsive.
|
Keypad Short / Stuck Key Error | View Details |
| – |
Microwave clock or timer loses time or resets intermittently.
|
Control Board Power Stability Issue | View Details |
| – |
Microwave convection or grill function does not heat, but standard microwave heating works.
|
Convection / Grill Heater Failure | View Details |
| – |
Microwave display is dim, flickering, or partially missing segments, but the unit still operates.
|
Display Module or Control Board Failure | View Details |
| – |
Microwave does not start at all; display is blank and no lights or sounds when door is opened or buttons are pressed.
|
No Power / Dead Unit | View Details |
| – |
Microwave door will not open or is very hard to open; latch feels stuck.
|
Door Latch Mechanism Jammed or Broken | View Details |
| – |
Microwave door will not stay closed or pops open during cooking.
|
Door Latch Misalignment or Wear | View Details |
| – |
Microwave emits a burning smell, electrical odor, or smoke during or shortly after operation.
|
Overheating Component or Electrical Short | View Details |
| – |
Microwave exterior or control panel becomes very hot to the touch during normal use.
|
Overheating / Poor Ventilation | View Details |
| – |
Microwave has power and display works, but pressing START does nothing; no relay click, no fan or light.
|
Start Circuit / Door Interlock Fault | View Details |
| – |
Microwave interior accumulates condensation or water droplets on walls and door during and after cooking.
|
Excess Moisture / Condensation | View Details |
| – |
Microwave interior is sparking or arcing during cooking; bright flashes may appear on the walls or near the waveguide cover.
|
Cavity Arcing / Waveguide Contamination | View Details |
| – |
Microwave interior light does not come on when the door is opened or during cooking, but the unit otherwise works.
|
Cavity Lamp Failure | View Details |
| – |
Microwave keypad buttons do not respond or respond intermittently; display is on but input is unreliable.
|
Membrane Keypad Wear or Control Panel Failure | View Details |
| – |
Microwave light, fan, and turntable run when the door is closed, even without pressing START.
|
Door Switch Interlock Miswiring or Failure | View Details |
| – |
Microwave makes loud buzzing, humming, or grinding noises during operation, louder than normal.
|
Noisy High-Voltage or Mechanical Component | View Details |
| – |
Microwave runs but does not heat food; turntable, light, and fan operate normally but items remain cold.
|
High-Voltage System Failure (No Heat) | View Details |
| – |
Microwave runs for a few seconds then shuts off and resets or returns to clock; may or may not heat during that time.
|
Intermittent Door Switch or Overcurrent Shutdown | View Details |
| – |
Microwave trips a GFCI outlet when plugged in or when starting a cook cycle.
|
Ground Fault or Leakage Current | View Details |
| – |
Microwave trips the home 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; food heats unevenly.
|
Turntable Drive Failure | View Details |
| – |
Over-the-range Viking microwave does not vent properly; steam and smoke are not being removed from the cooktop area.
|
Improper Venting / Installation Issue | View Details |
| – |
Over-the-range Viking microwave exhaust fan does not run or runs only on one speed.
|
Exhaust / Vent Fan Failure | View Details |
No matching codes found
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