OBH Nordica
OBH Nordica 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; display shows E1 immediately after pressing START.
Door Interlock Circuit Fault
E10
Microwave shows E10 and will not accept any input; display may be frozen.
Control Board / Firmware Fault
E2
Microwave beeps and shows E2; oven light and turntable may work but no heating.
Temperature Sensor / Cavity Thermostat Fault
E3
Microwave stops heating shortly after start and displays E3; fan may continue running.
Magnetron Overheat / Magnetron Thermostat Fault
E4
Microwave shows E4 and will not start any cooking program.
Humidity / Steam Sensor Fault
E5
Microwave displays E5 and does not heat; turntable and light may still operate.
High Voltage System Fault (Magnetron / Inverter / Transformer)
E6
Microwave shows E6 and keypad or touch controls do not respond correctly.
Keypad / Touch Control Panel Communication Fault
E7
Microwave displays E7 and the turntable does not rotate during cooking.
Turntable Motor / Position Sensor Fault
E8
Microwave shows E8 and convection or grill functions do not operate (on combination models).
Convection Heater / Grill Element Fault
E9
Microwave displays E9 and stops mid-cycle; sometimes accompanied by a burning smell.
Cavity Overheat / Safety Thermostat Trip
Symptom
Microwave clock resets or display blinks after each use or when opening the door.
Intermittent Power Loss / Loose Connection
Symptom
Microwave display is dim, flickering, or segments are missing, but unit still heats.
Display Module / Low-Voltage Supply Issue
Symptom
Microwave display works but pressing START does nothing; timer does not count down.
Start Circuit / Door Interlock Logic Fault
Symptom
Microwave does not start at all; display is blank and no lights or sounds when plugging in.
No Power / Primary Power Circuit Failure
Symptom
Microwave door will not open or is stuck closed after a cycle.
Door Latch / Release Mechanism Jam
Symptom
Microwave door will not stay closed; it pops open slightly and the unit will not start.
Door Latch Misalignment / Worn Hooks
Symptom
Microwave emits a crackling or arcing sound inside the cavity; visible sparks may appear.
Cavity Arcing / Waveguide Contamination
Symptom
Microwave emits a strong burning or electrical smell during or after use.
Overheating Component or Cavity Contamination
Symptom
Microwave exterior gets very hot to the touch during normal use.
Inadequate Ventilation / Cooling System Issue
Symptom
Microwave fan continues to run for a very long time after cooking has finished.
Cooling Fan Overrun / Control Logic Issue
Symptom
Microwave interior light and fan run when the door is closed, even without pressing START.
Stuck Relay or Shorted Control Circuit
Symptom
Microwave interior light does not turn on, but heating and turntable work normally.
Cavity Lamp Failure
Symptom
Microwave interior paint is peeling or rust is visible inside the cavity.
Cavity Coating Degradation
Symptom
Microwave is excessively noisy; rattling or grinding sounds during operation.
Mechanical Vibration / Fan or Turntable Noise
Symptom
Microwave keypad buttons are unresponsive or require very hard presses.
Worn Keypad Membrane
Symptom
Microwave leaks water or condensation onto the countertop or inside the door.
Condensation Management / Door Seal Issue
Symptom
Microwave makes loud buzzing or humming noise when heating, louder than usual.
High Voltage Transformer or Magnetron Noise
Symptom
Microwave produces radio or Wi‑Fi interference when operating.
EMI Suppression / Shielding Issue
Symptom
Microwave randomly starts beeping or flashing without user input.
Control Panel Sensitivity / Electrical Noise
Symptom
Microwave runs but does not heat food; turntable and light work normally, no error code displayed.
No Microwave Output / Magnetron or HV Failure
Symptom
Microwave runs for a few seconds then stops and resets to the clock without heating.
Intermittent Door Switch or Overheat Protection Trip
Symptom
Microwave timer counts down but the turntable, light, and fan do not run; no heating occurs.
Output Relay / Control Drive Failure
Symptom
Microwave trips the household circuit breaker or blows the fuse when starting a cooking cycle.
Short Circuit / Overcurrent on Start
Symptom
On grill or convection modes, food does not brown or reach set temperature.
Underperforming Grill / Convection System
Symptom
Turntable does not rotate, but microwave heats food unevenly; no error code.
Turntable Drive Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Microwave will not start; display shows E1 immediately after pressing START.
|
Door Interlock Circuit Fault | View Details |
| E10 |
Microwave shows E10 and will not accept any input; display may be frozen.
|
Control Board / Firmware Fault | View Details |
| E2 |
Microwave beeps and shows E2; oven light and turntable may work but no heating.
|
Temperature Sensor / Cavity Thermostat Fault | View Details |
| E3 |
Microwave stops heating shortly after start and displays E3; fan may continue running.
|
Magnetron Overheat / Magnetron Thermostat Fault | View Details |
| E4 |
Microwave shows E4 and will not start any cooking program.
|
Humidity / Steam Sensor Fault | View Details |
| E5 |
Microwave displays E5 and does not heat; turntable and light may still operate.
|
High Voltage System Fault (Magnetron / Inverter / Transformer) | View Details |
| E6 |
Microwave shows E6 and keypad or touch controls do not respond correctly.
|
Keypad / Touch Control Panel Communication Fault | View Details |
| E7 |
Microwave displays E7 and the turntable does not rotate during cooking.
|
Turntable Motor / Position Sensor Fault | View Details |
| E8 |
Microwave shows E8 and convection or grill functions do not operate (on combination models).
|
Convection Heater / Grill Element Fault | View Details |
| E9 |
Microwave displays E9 and stops mid-cycle; sometimes accompanied by a burning smell.
|
Cavity Overheat / Safety Thermostat Trip | View Details |
| – |
Microwave clock resets or display blinks after each use or when opening the door.
|
Intermittent Power Loss / Loose Connection | View Details |
| – |
Microwave display is dim, flickering, or segments are missing, but unit still heats.
|
Display Module / Low-Voltage Supply Issue | View Details |
| – |
Microwave display works but pressing START does nothing; timer does not count down.
|
Start Circuit / Door Interlock Logic Fault | View Details |
| – |
Microwave does not start at all; display is blank and no lights or sounds when plugging in.
|
No Power / Primary Power Circuit Failure | View Details |
| – |
Microwave door will not open or is stuck closed after a cycle.
|
Door Latch / Release Mechanism Jam | View Details |
| – |
Microwave door will not stay closed; it pops open slightly and the unit will not start.
|
Door Latch Misalignment / Worn Hooks | View Details |
| – |
Microwave emits a crackling or arcing sound inside the cavity; visible sparks may appear.
|
Cavity Arcing / Waveguide Contamination | View Details |
| – |
Microwave emits a strong burning or electrical smell during or after use.
|
Overheating Component or Cavity Contamination | View Details |
| – |
Microwave exterior gets very hot to the touch during normal use.
|
Inadequate Ventilation / Cooling System Issue | View Details |
| – |
Microwave fan continues to run for a very long time after cooking has finished.
|
Cooling Fan Overrun / Control Logic Issue | View Details |
| – |
Microwave interior light and fan run when the door is closed, even without pressing START.
|
Stuck Relay or Shorted Control Circuit | View Details |
| – |
Microwave interior light does not turn on, but heating and turntable work normally.
|
Cavity Lamp Failure | View Details |
| – |
Microwave interior paint is peeling or rust is visible inside the cavity.
|
Cavity Coating Degradation | View Details |
| – |
Microwave is excessively noisy; rattling or grinding sounds during operation.
|
Mechanical Vibration / Fan or Turntable Noise | View Details |
| – |
Microwave keypad buttons are unresponsive or require very hard presses.
|
Worn Keypad Membrane | View Details |
| – |
Microwave leaks water or condensation onto the countertop or inside the door.
|
Condensation Management / Door Seal Issue | View Details |
| – |
Microwave makes loud buzzing or humming noise when heating, louder than usual.
|
High Voltage Transformer or Magnetron Noise | View Details |
| – |
Microwave produces radio or Wi‑Fi interference when operating.
|
EMI Suppression / Shielding Issue | View Details |
| – |
Microwave randomly starts beeping or flashing without user input.
|
Control Panel Sensitivity / Electrical Noise | View Details |
| – |
Microwave runs but does not heat food; turntable and light work normally, no error code displayed.
|
No Microwave Output / Magnetron or HV Failure | View Details |
| – |
Microwave runs for a few seconds then stops and resets to the clock without heating.
|
Intermittent Door Switch or Overheat Protection Trip | View Details |
| – |
Microwave timer counts down but the turntable, light, and fan do not run; no heating occurs.
|
Output Relay / Control Drive Failure | View Details |
| – |
Microwave trips the household circuit breaker or blows the fuse when starting a cooking cycle.
|
Short Circuit / Overcurrent on Start | View Details |
| – |
On grill or convection modes, food does not brown or reach set temperature.
|
Underperforming Grill / Convection System | View Details |
| – |
Turntable does not rotate, but microwave heats food unevenly; no error code.
|
Turntable Drive Failure | View Details |
No matching codes found
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