Klarstein
Klarstein 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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E1
Air fryer will not start; display shows E1 immediately after power-on or when pressing START.
NTC Temperature Sensor Open Circuit
E10
E10 appears; unit may start but stops mid-cycle, or will not begin heating.
Door/Basket Safety Switch Fault
E11
E11 error; unit may heat briefly then shut off, or fan runs without heat.
Secondary Temperature Sensor Fault (Core/Probe Sensor)
E12
E12 appears; unit may not respond to temperature changes or may over/underheat.
Temperature Calibration / Sensor Range Error
E13
E13 error; unit may shut down when high temperatures are selected or after long cooking cycles.
Internal Overheat / Cavity Over-Temperature Detected
E14
E14 error; unit may not start or may stop with a beeping alarm shortly after beginning a cycle.
Internal Communication / MCU Error
E15
E15 error; unit may not recognize accessories (e.g., rotisserie, grill plate) or may refuse to start certain modes.
Accessory Detection / Mode Sensor Fault
E2
Air fryer powers on but quickly shows E2 and will not heat.
NTC Temperature Sensor Short Circuit
E3
Display shows E3 during preheat or cooking; unit may shut off heating prematurely.
Overtemperature Protection / High Temperature Fault
E4
E4 appears on the display and the air fryer stops heating or will not start a cooking cycle.
Overheat / Thermal Cutoff Tripped or Open
E5
E5 error appears and the Klarstein air fryer will not heat or shuts down shortly after starting.
Heater Circuit Fault / Open Heating Element
E6
E6 appears on the display; fan may run but there is no heat, or unit shuts down unexpectedly.
Heater Relay / Power Triac Failure on Control Board
E7
E7 error code appears; fan does not run or stops shortly after start, sometimes with a humming sound.
Fan Motor Fault / Fan Tachometer Error
E8
E8 appears on the display; unit may power on but controls are unresponsive or shut down intermittently.
Low Voltage / Power Supply Fault
E9
E9 error code; display may flicker, buttons may not respond, or unit resets during cooking.
Control Panel / Keypad Communication Error
Symptom
Air fryer display is dim, flickering, or segments are missing, but the unit still heats.
Display Module / Backlight Degradation
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 strong burning plastic smell during first uses or after a repair.
Odor / Off-Gassing or Component Overheating
Symptom
Air fryer fan does not run; unit may heat but there is little or no air circulation and uneven cooking.
Fan Motor Not Running
Symptom
Air fryer leaks oil or liquid from the bottom during or after cooking.
Leakage from Basket or Pan Assembly
Symptom
Air fryer makes loud rattling or grinding noises during operation.
Mechanical Noise / Fan or Motor Bearing Wear
Symptom
Air fryer overheats; food burns quickly and there is a strong smell of burning plastic or oil, but no error code is displayed.
Overheating / Temperature Regulation Failure
Symptom
Air fryer powers on but will not start cooking; pressing START does nothing and no error code is shown.
User Interface / Start Circuit Fault
Symptom
Air fryer runs but does not heat; fan operates and timer counts down, but food remains cold.
No Heat / Open Heater Circuit
Symptom
Air fryer trips the household circuit breaker or RCD when plugged in or when heating starts.
Electrical Short or Ground Fault
Symptom
Basket does not lock properly; cooking stops when the basket is slightly moved.
Basket Latch / Safety Switch Engagement Issue
Symptom
Basket is difficult to insert or remove; it jams or does not sit flush, preventing operation.
Basket Rail / Latch Misalignment
Symptom
Buttons or touch controls respond intermittently or activate by themselves.
Erratic Touch Panel Operation
Symptom
Condensation or water droplets form on the control panel or window (on oven-style models).
Condensation / Steam Management Issue
Symptom
Excessive steam or smoke escapes from vents during normal cooking.
Ventilation / Grease Smoke
Symptom
Exterior surfaces of the Klarstein air fryer become excessively hot to the touch during use.
Insulation / Heat Shield Degradation
Symptom
Food cooks unevenly; some areas are burnt while others are undercooked.
Uneven Airflow / Temperature Distribution
Symptom
Interior light (on models equipped) does not turn on, but the fryer otherwise works.
Cavity Lamp Failure
Symptom
Non-stick coating inside the basket or pan is peeling or flaking.
Coating Degradation / Surface Damage
Symptom
Rotisserie (on oven-style Klarstein air fryers) does not rotate, though heating and fan work.
Rotisserie Motor Failure
Symptom
Timer counts down too fast or too slow compared to real time.
Timing Circuit / Oscillator Drift
Symptom
Unit shuts off randomly during cooking and restarts or remains off without showing an error.
Intermittent Power Loss / Thermal Cutout Cycling
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Air fryer will not start; display shows E1 immediately after power-on or when pressing START.
|
NTC Temperature Sensor Open Circuit | View Details |
| E10 |
E10 appears; unit may start but stops mid-cycle, or will not begin heating.
|
Door/Basket Safety Switch Fault | View Details |
| E11 |
E11 error; unit may heat briefly then shut off, or fan runs without heat.
|
Secondary Temperature Sensor Fault (Core/Probe Sensor) | View Details |
| E12 |
E12 appears; unit may not respond to temperature changes or may over/underheat.
|
Temperature Calibration / Sensor Range Error | View Details |
| E13 |
E13 error; unit may shut down when high temperatures are selected or after long cooking cycles.
|
Internal Overheat / Cavity Over-Temperature Detected | View Details |
| E14 |
E14 error; unit may not start or may stop with a beeping alarm shortly after beginning a cycle.
|
Internal Communication / MCU Error | View Details |
| E15 |
E15 error; unit may not recognize accessories (e.g., rotisserie, grill plate) or may refuse to start certain modes.
|
Accessory Detection / Mode Sensor Fault | View Details |
| E2 |
Air fryer powers on but quickly shows E2 and will not heat.
|
NTC Temperature Sensor Short Circuit | View Details |
| E3 |
Display shows E3 during preheat or cooking; unit may shut off heating prematurely.
|
Overtemperature Protection / High Temperature Fault | View Details |
| E4 |
E4 appears on the display and the air fryer stops heating or will not start a cooking cycle.
|
Overheat / Thermal Cutoff Tripped or Open | View Details |
| E5 |
E5 error appears and the Klarstein air fryer will not heat or shuts down shortly after starting.
|
Heater Circuit Fault / Open Heating Element | View Details |
| E6 |
E6 appears on the display; fan may run but there is no heat, or unit shuts down unexpectedly.
|
Heater Relay / Power Triac Failure on Control Board | View Details |
| E7 |
E7 error code appears; fan does not run or stops shortly after start, sometimes with a humming sound.
|
Fan Motor Fault / Fan Tachometer Error | View Details |
| E8 |
E8 appears on the display; unit may power on but controls are unresponsive or shut down intermittently.
|
Low Voltage / Power Supply Fault | View Details |
| E9 |
E9 error code; display may flicker, buttons may not respond, or unit resets during cooking.
|
Control Panel / Keypad Communication Error | View Details |
| – |
Air fryer display is dim, flickering, or segments are missing, but the unit still heats.
|
Display Module / Backlight Degradation | 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 strong burning plastic smell during first uses or after a repair.
|
Odor / Off-Gassing or Component Overheating | View Details |
| – |
Air fryer fan does not run; unit may heat but there is little or no air circulation and uneven cooking.
|
Fan Motor Not Running | View Details |
| – |
Air fryer leaks oil or liquid from the bottom during or after cooking.
|
Leakage from Basket or Pan Assembly | View Details |
| – |
Air fryer makes loud rattling or grinding noises during operation.
|
Mechanical Noise / Fan or Motor Bearing Wear | View Details |
| – |
Air fryer overheats; food burns quickly and there is a strong smell of burning plastic or oil, but no error code is displayed.
|
Overheating / Temperature Regulation Failure | View Details |
| – |
Air fryer powers on but will not start cooking; pressing START does nothing and no error code is shown.
|
User Interface / Start Circuit Fault | View Details |
| – |
Air fryer runs but does not heat; fan operates and timer counts down, but food remains cold.
|
No Heat / Open Heater Circuit | View Details |
| – |
Air fryer trips the household circuit breaker or RCD when plugged in or when heating starts.
|
Electrical Short or Ground Fault | View Details |
| – |
Basket does not lock properly; cooking stops when the basket is slightly moved.
|
Basket Latch / Safety Switch Engagement Issue | View Details |
| – |
Basket is difficult to insert or remove; it jams or does not sit flush, preventing operation.
|
Basket Rail / Latch Misalignment | View Details |
| – |
Buttons or touch controls respond intermittently or activate by themselves.
|
Erratic Touch Panel Operation | View Details |
| – |
Condensation or water droplets form on the control panel or window (on oven-style models).
|
Condensation / Steam Management Issue | View Details |
| – |
Excessive steam or smoke escapes from vents during normal cooking.
|
Ventilation / Grease Smoke | View Details |
| – |
Exterior surfaces of the Klarstein air fryer become excessively hot to the touch during use.
|
Insulation / Heat Shield Degradation | View Details |
| – |
Food cooks unevenly; some areas are burnt while others are undercooked.
|
Uneven Airflow / Temperature Distribution | View Details |
| – |
Interior light (on models equipped) does not turn on, but the fryer otherwise works.
|
Cavity Lamp Failure | View Details |
| – |
Non-stick coating inside the basket or pan is peeling or flaking.
|
Coating Degradation / Surface Damage | View Details |
| – |
Rotisserie (on oven-style Klarstein air fryers) does not rotate, though heating and fan work.
|
Rotisserie Motor Failure | View Details |
| – |
Timer counts down too fast or too slow compared to real time.
|
Timing Circuit / Oscillator Drift | View Details |
| – |
Unit shuts off randomly during cooking and restarts or remains off without showing an error.
|
Intermittent Power Loss / Thermal Cutout Cycling | View Details |
No matching codes found
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