Bosch Air Fryers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E01
Air fryer will not start; display shows E01 immediately after power-on or when pressing the Start button.
Overheat Protection / Thermal Fuse Trip
E02
Air fryer stops heating during a cycle; fan may run but food remains undercooked; display shows E02.
Heating Element Circuit Failure
E03
Display shows E03 and the air fryer shuts down shortly after starting; fan may not run.
Fan Motor / Airflow Fault
E04
Air fryer displays E04 and refuses to start or stops mid-cycle; temperature readings seem incorrect or fluctuate rapidly.
Temperature Sensor (NTC) Failure
E05
Display shows E05; unit may not power on fully or shuts off unexpectedly when heating.
Power Supply / Low Voltage Detection
E06
E06 appears and the air fryer will not start; sometimes accompanied by beeping when inserting the basket.
Door / Basket Detection Switch Fault
E07
E07 error appears; unit may start but then quickly stops heating or shuts down.
Overtemperature Cut-Out / Safety Thermostat Trip
E08
E08 displayed; unit may not respond to temperature or time adjustments correctly.
Control Panel / Touch Interface Error
E09
E09 appears; unit may heat briefly then shut off, or may not heat at all while fan runs.
Heater Relay / Triac Failure on Control Board
E10
E10 error; unit may not recognize temperature settings or shows unrealistic temperature values.
Temperature Calibration / Sensor Range Error
Symptom
Air fryer does not power on at all; no lights or display when plugged in.
No Power / Dead Appliance
Symptom
Air fryer emits a burning smell (plastic or electrical) during use.
Overheating or Electrical Insulation Failure
Symptom
Air fryer emits loud rattling or grinding noise during operation.
Mechanical Noise from Fan Assembly
Symptom
Air fryer fan continues to run for an unusually long time after cooking has finished.
Cooling Cycle Extended
Symptom
Air fryer gives mild electric tingling when touching the metal parts.
Leakage Current / Grounding Issue
Symptom
Air fryer heats but fan does not run; food burns on top and cooks unevenly.
Convection Fan Not Operating
Symptom
Air fryer overheats; food burns quickly even at low temperature settings; exterior may feel excessively hot.
Temperature Regulation Failure
Symptom
Air fryer powers on but will not start cooking when pressing Start; no error code displayed.
Start Inhibit / Safety Interlock Not Engaged
Symptom
Air fryer runs but does not heat; fan operates normally and timer counts down.
No Heat / Open Heater Circuit
Symptom
Air fryer shuts off mid-cycle without any error code and can be restarted after cooling.
Thermal Overload / Intermittent Power Loss
Symptom
Air fryer temperature is inaccurate; food undercooked or overcooked compared to set temperature, without any error code.
Temperature Calibration Drift
Symptom
Air fryer trips the household circuit breaker or RCD when starting.
Short Circuit or Earth Leakage
Symptom
Air fryer vibrates excessively or moves on the countertop during operation.
Excessive Vibration
Symptom
Basket handle feels loose or wobbly; risk of detaching when lifting.
Loose Basket Handle Assembly
Symptom
Basket is difficult to insert or remove; it jams or scrapes against the housing.
Mechanical Misalignment of Basket Rails
Symptom
Buttons on the control panel are unresponsive or respond intermittently.
User Interface Input Failure
Symptom
Display is completely blank but heater and fan still operate when starting a cycle blindly.
Display Module Failure
Symptom
Display or indicator lights flicker or dim during operation.
Unstable Power to Control Panel
Symptom
High-pitched squealing noise when the air fryer is running.
Fan Motor Bearing Wear
Symptom
Interior light (if equipped) does not turn on during cooking.
Cavity Light Failure
Symptom
Non-stick coating on basket or pan is peeling or flaking.
Coating Degradation
Symptom
Oil or liquid leaking from the bottom of the air fryer onto the countertop.
Leakage from Basket or Pan Assembly
Symptom
Persistent food or rancid oil smell from the air fryer even after cleaning.
Odor Retention / Grease Contamination
Symptom
Plastic housing around the top or rear feels deformed or discolored from heat.
Localized Overheating of Housing
Symptom
Steam or smoke escaping excessively from sides or rear of the air fryer.
Abnormal Steam / Smoke Leakage
Symptom
Timer does not count down correctly or resets during cooking.
Control Logic / Power Interruption
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Air fryer will not start; display shows E01 immediately after power-on or when pressing the Start button.
|
Overheat Protection / Thermal Fuse Trip | View Details |
| E02 |
Air fryer stops heating during a cycle; fan may run but food remains undercooked; display shows E02.
|
Heating Element Circuit Failure | View Details |
| E03 |
Display shows E03 and the air fryer shuts down shortly after starting; fan may not run.
|
Fan Motor / Airflow Fault | View Details |
| E04 |
Air fryer displays E04 and refuses to start or stops mid-cycle; temperature readings seem incorrect or fluctuate rapidly.
|
Temperature Sensor (NTC) Failure | View Details |
| E05 |
Display shows E05; unit may not power on fully or shuts off unexpectedly when heating.
|
Power Supply / Low Voltage Detection | View Details |
| E06 |
E06 appears and the air fryer will not start; sometimes accompanied by beeping when inserting the basket.
|
Door / Basket Detection Switch Fault | View Details |
| E07 |
E07 error appears; unit may start but then quickly stops heating or shuts down.
|
Overtemperature Cut-Out / Safety Thermostat Trip | View Details |
| E08 |
E08 displayed; unit may not respond to temperature or time adjustments correctly.
|
Control Panel / Touch Interface Error | View Details |
| E09 |
E09 appears; unit may heat briefly then shut off, or may not heat at all while fan runs.
|
Heater Relay / Triac Failure on Control Board | View Details |
| E10 |
E10 error; unit may not recognize temperature settings or shows unrealistic temperature values.
|
Temperature Calibration / Sensor Range Error | View Details |
| – |
Air fryer does not power on at all; no lights or display when plugged in.
|
No Power / Dead Appliance | View Details |
| – |
Air fryer emits a burning smell (plastic or electrical) during use.
|
Overheating or Electrical Insulation Failure | View Details |
| – |
Air fryer emits loud rattling or grinding noise during operation.
|
Mechanical Noise from Fan Assembly | View Details |
| – |
Air fryer fan continues to run for an unusually long time after cooking has finished.
|
Cooling Cycle Extended | View Details |
| – |
Air fryer gives mild electric tingling when touching the metal parts.
|
Leakage Current / Grounding Issue | View Details |
| – |
Air fryer heats but fan does not run; food burns on top and cooks unevenly.
|
Convection Fan Not Operating | View Details |
| – |
Air fryer overheats; food burns quickly even at low temperature settings; exterior may feel excessively hot.
|
Temperature Regulation Failure | View Details |
| – |
Air fryer powers on but will not start cooking when pressing Start; no error code displayed.
|
Start Inhibit / Safety Interlock Not Engaged | View Details |
| – |
Air fryer runs but does not heat; fan operates normally and timer counts down.
|
No Heat / Open Heater Circuit | View Details |
| – |
Air fryer shuts off mid-cycle without any error code and can be restarted after cooling.
|
Thermal Overload / Intermittent Power Loss | View Details |
| – |
Air fryer temperature is inaccurate; food undercooked or overcooked compared to set temperature, without any error code.
|
Temperature Calibration Drift | View Details |
| – |
Air fryer trips the household circuit breaker or RCD when starting.
|
Short Circuit or Earth Leakage | View Details |
| – |
Air fryer vibrates excessively or moves on the countertop during operation.
|
Excessive Vibration | View Details |
| – |
Basket handle feels loose or wobbly; risk of detaching when lifting.
|
Loose Basket Handle Assembly | View Details |
| – |
Basket is difficult to insert or remove; it jams or scrapes against the housing.
|
Mechanical Misalignment of Basket Rails | View Details |
| – |
Buttons on the control panel are unresponsive or respond intermittently.
|
User Interface Input Failure | View Details |
| – |
Display is completely blank but heater and fan still operate when starting a cycle blindly.
|
Display Module Failure | View Details |
| – |
Display or indicator lights flicker or dim during operation.
|
Unstable Power to Control Panel | View Details |
| – |
High-pitched squealing noise when the air fryer is running.
|
Fan Motor Bearing Wear | View Details |
| – |
Interior light (if equipped) does not turn on during cooking.
|
Cavity Light Failure | View Details |
| – |
Non-stick coating on basket or pan is peeling or flaking.
|
Coating Degradation | View Details |
| – |
Oil or liquid leaking from the bottom of the air fryer onto the countertop.
|
Leakage from Basket or Pan Assembly | View Details |
| – |
Persistent food or rancid oil smell from the air fryer even after cleaning.
|
Odor Retention / Grease Contamination | View Details |
| – |
Plastic housing around the top or rear feels deformed or discolored from heat.
|
Localized Overheating of Housing | View Details |
| – |
Steam or smoke escaping excessively from sides or rear of the air fryer.
|
Abnormal Steam / Smoke Leakage | View Details |
| – |
Timer does not count down correctly or resets during cooking.
|
Control Logic / Power Interruption | View Details |
No matching codes found
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