Panasonic Microwaves Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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H11
Microwave shows H11 and may not respond to cooking commands.
Communication Error Between Control PCB and Sub-Board
H12
Microwave displays H12 and will not operate normally.
Control PCB Internal Error
H13
Microwave shows H13 and may not start or may behave erratically.
EEPROM / Memory Error on Control PCB
H14
Microwave displays H14 and will not operate.
Inverter Cooling Fan / Airflow Error
H15
Microwave shows H15 and stops heating or will not start.
Inverter Input Voltage / Current Error
H16
Microwave displays H16 and will not heat.
Inverter Output Monitoring Error
H17
Microwave shows H17 and may not start or may stop shortly after starting.
Door Sensing / Interlock Error (logic-level)
H18
Microwave displays H18 and will not operate.
Door Interlock / Safety Chain Error
H19
Microwave shows H19 and may not start or may stop unexpectedly.
Keypad / Touch Panel Error
H21
Microwave displays H21 and may stop mid-cycle, especially during sensor cooking modes.
Temperature Sensor / Thermistor Error
H23
Microwave shows H23 and may not start or may stop during operation.
Cavity Temperature Sensor Overheat / Fault
H32
Microwave displays H32 and will not start a cook cycle.
Weight Sensor / Turntable Load Sensor Error (on some inverter models with weight detection)
H41
Microwave beeps and displays H41, may not start a cook cycle.
Humidity / Steam Sensor Error
H42
Microwave shows H42 and sensor cooking functions do not operate correctly.
Steam / Humidity Sensor Circuit Fault
H90
Microwave does not heat and displays H90, sometimes immediately after pressing start.
Inverter Startup / Communication Error
H95
Microwave will not heat and shows H95 on the display, sometimes after a brief humming sound.
High-Voltage System Protection Error
H96
Microwave stops heating and displays H96, often accompanied by a brief attempt to start.
Inverter Overheating / Overload Fault
H97
Microwave runs briefly then stops heating, display may show H97, fan and light may still operate but food remains cold.
Inverter Power Supply Failure / Magnetron Drive Fault
H98
Microwave does not heat and displays H98 shortly after starting, fan and turntable may run but no heating occurs.
Magnetron / Inverter Protection Error
H99
Microwave stops heating and displays H99, often immediately or within a few seconds of starting a cook cycle.
Inverter Communication / Overcurrent Protection Fault
U14
Microwave displays U14 and will not start a cook cycle.
Water Tank Empty / Steam Generator Low Water (for Panasonic steam-combination microwaves)
U50
Microwave displays U50 and may not start certain programs.
Door Not Closed / Door Open Detection
U59
Microwave shows U59 and may stop or refuse to start a steam or combination cycle.
Steam Generator / Descaling Reminder or Fault (model-dependent)
Symptom
Microwave causes the household circuit breaker to trip or blows fuses when starting.
Short Circuit or Excessive Inrush Current
Symptom
Microwave cooks unevenly; some areas of food are very hot while others remain cold.
Uneven Heating / Distribution Issue
Symptom
Microwave display is dim, flickering, or segments are missing, but cooking still works.
Display Module / VFD or LED Failure
Symptom
Microwave display works but some buttons do not respond or respond intermittently.
Keypad / Membrane Switch 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 – Primary Power Circuit Failure
Symptom
Microwave door will not open or is very hard to open after cooking.
Door Latch / Release Mechanism Failure
Symptom
Microwave door will not stay closed or pops open during operation.
Door Latch Misalignment / Worn Hooks
Symptom
Microwave emits a strong burning or electrical smell during or after operation.
Overheating or Electrical Insulation Breakdown
Symptom
Microwave has power and display works, but pressing START does nothing; no relay click, no fan, no turntable.
Won't Start – Control or Door Interlock Issue
Symptom
Microwave interior is sparking when cooking, especially near the side wall or waveguide cover.
Cavity Arcing
Symptom
Microwave interior light does not come on when the door opens or during cooking, but the unit otherwise works.
Cavity Lamp Failure
Symptom
Microwave is very noisy during operation, with rattling or grinding sounds, but still heats.
Mechanical Vibration / Fan or Turntable Noise
Symptom
Microwave leaks water or condensation onto the counter or inside the door area.
Condensation / Drainage Issue (especially on steam or combination models)
Symptom
Microwave over-the-range exhaust fan or hood light does not work, but microwave cooking is normal.
Exhaust Fan / Hood Light Failure
Symptom
Microwave runs but does not heat food; turntable and light work, timer counts down normally, but food remains cold.
No Heating – High-Voltage System Failure
Symptom
Microwave runs but makes loud buzzing, humming, or crackling noises, sometimes accompanied by a burning smell.
Arcing or High-Voltage Component Breakdown
Symptom
Microwave stops mid-cycle and shuts off completely, sometimes coming back on after cooling.
Overheating – Thermal Cutout Activation
Symptom
Microwave time or clock resets randomly, or the unit restarts during cooking.
Intermittent Power / Control Reset
Symptom
Microwave turntable does not rotate, but heating still occurs.
Turntable Drive Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| H11 |
Microwave shows H11 and may not respond to cooking commands.
|
Communication Error Between Control PCB and Sub-Board | View Details |
| H12 |
Microwave displays H12 and will not operate normally.
|
Control PCB Internal Error | View Details |
| H13 |
Microwave shows H13 and may not start or may behave erratically.
|
EEPROM / Memory Error on Control PCB | View Details |
| H14 |
Microwave displays H14 and will not operate.
|
Inverter Cooling Fan / Airflow Error | View Details |
| H15 |
Microwave shows H15 and stops heating or will not start.
|
Inverter Input Voltage / Current Error | View Details |
| H16 |
Microwave displays H16 and will not heat.
|
Inverter Output Monitoring Error | View Details |
| H17 |
Microwave shows H17 and may not start or may stop shortly after starting.
|
Door Sensing / Interlock Error (logic-level) | View Details |
| H18 |
Microwave displays H18 and will not operate.
|
Door Interlock / Safety Chain Error | View Details |
| H19 |
Microwave shows H19 and may not start or may stop unexpectedly.
|
Keypad / Touch Panel Error | View Details |
| H21 |
Microwave displays H21 and may stop mid-cycle, especially during sensor cooking modes.
|
Temperature Sensor / Thermistor Error | View Details |
| H23 |
Microwave shows H23 and may not start or may stop during operation.
|
Cavity Temperature Sensor Overheat / Fault | View Details |
| H32 |
Microwave displays H32 and will not start a cook cycle.
|
Weight Sensor / Turntable Load Sensor Error (on some inverter models with weight detection) | View Details |
| H41 |
Microwave beeps and displays H41, may not start a cook cycle.
|
Humidity / Steam Sensor Error | View Details |
| H42 |
Microwave shows H42 and sensor cooking functions do not operate correctly.
|
Steam / Humidity Sensor Circuit Fault | View Details |
| H90 |
Microwave does not heat and displays H90, sometimes immediately after pressing start.
|
Inverter Startup / Communication Error | View Details |
| H95 |
Microwave will not heat and shows H95 on the display, sometimes after a brief humming sound.
|
High-Voltage System Protection Error | View Details |
| H96 |
Microwave stops heating and displays H96, often accompanied by a brief attempt to start.
|
Inverter Overheating / Overload Fault | View Details |
| H97 |
Microwave runs briefly then stops heating, display may show H97, fan and light may still operate but food remains cold.
|
Inverter Power Supply Failure / Magnetron Drive Fault | View Details |
| H98 |
Microwave does not heat and displays H98 shortly after starting, fan and turntable may run but no heating occurs.
|
Magnetron / Inverter Protection Error | View Details |
| H99 |
Microwave stops heating and displays H99, often immediately or within a few seconds of starting a cook cycle.
|
Inverter Communication / Overcurrent Protection Fault | View Details |
| U14 |
Microwave displays U14 and will not start a cook cycle.
|
Water Tank Empty / Steam Generator Low Water (for Panasonic steam-combination microwaves) | View Details |
| U50 |
Microwave displays U50 and may not start certain programs.
|
Door Not Closed / Door Open Detection | View Details |
| U59 |
Microwave shows U59 and may stop or refuse to start a steam or combination cycle.
|
Steam Generator / Descaling Reminder or Fault (model-dependent) | View Details |
| – |
Microwave causes the household circuit breaker to trip or blows fuses when starting.
|
Short Circuit or Excessive Inrush Current | View Details |
| – |
Microwave cooks unevenly; some areas of food are very hot while others remain cold.
|
Uneven Heating / Distribution Issue | View Details |
| – |
Microwave display is dim, flickering, or segments are missing, but cooking still works.
|
Display Module / VFD or LED Failure | View Details |
| – |
Microwave display works but some buttons do not respond or respond intermittently.
|
Keypad / Membrane Switch 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 – Primary Power Circuit Failure | View Details |
| – |
Microwave door will not open or is very hard to open after cooking.
|
Door Latch / Release Mechanism Failure | View Details |
| – |
Microwave door will not stay closed or pops open during operation.
|
Door Latch Misalignment / Worn Hooks | View Details |
| – |
Microwave emits a strong burning or electrical smell during or after operation.
|
Overheating or Electrical Insulation Breakdown | View Details |
| – |
Microwave has power and display works, but pressing START does nothing; no relay click, no fan, no turntable.
|
Won't Start – Control or Door Interlock Issue | View Details |
| – |
Microwave interior is sparking when cooking, especially near the side wall or waveguide cover.
|
Cavity Arcing | View Details |
| – |
Microwave interior light does not come on when the door opens or during cooking, but the unit otherwise works.
|
Cavity Lamp Failure | View Details |
| – |
Microwave is very noisy during operation, with rattling or grinding sounds, but still heats.
|
Mechanical Vibration / Fan or Turntable Noise | View Details |
| – |
Microwave leaks water or condensation onto the counter or inside the door area.
|
Condensation / Drainage Issue (especially on steam or combination models) | View Details |
| – |
Microwave over-the-range exhaust fan or hood light does not work, but microwave cooking is normal.
|
Exhaust Fan / Hood Light Failure | View Details |
| – |
Microwave runs but does not heat food; turntable and light work, timer counts down normally, but food remains cold.
|
No Heating – High-Voltage System Failure | View Details |
| – |
Microwave runs but makes loud buzzing, humming, or crackling noises, sometimes accompanied by a burning smell.
|
Arcing or High-Voltage Component Breakdown | View Details |
| – |
Microwave stops mid-cycle and shuts off completely, sometimes coming back on after cooling.
|
Overheating – Thermal Cutout Activation | View Details |
| – |
Microwave time or clock resets randomly, or the unit restarts during cooking.
|
Intermittent Power / Control Reset | View Details |
| – |
Microwave turntable does not rotate, but heating still occurs.
|
Turntable Drive Failure | View Details |
No matching codes found
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