Chefman
Chefman 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 and displays E1 on the control panel.
NTC Temperature Sensor Open Circuit
E2
Air fryer beeps and shows E2 shortly after starting a cooking cycle.
NTC Temperature Sensor Short Circuit / Overheat Detection
E3
Display shows E3 and the air fryer shuts off or will not heat.
Overtemperature / Thermal Cutoff Trip
E4
E4 error appears and the unit will not start or stops mid-cycle.
Internal Temperature Sensor Range Error / Calibration Fault
E5
E5 error code appears and the air fryer will not heat.
Heater Circuit Fault / Open Heating Element
E6
E6 error appears and the fan does not run or the unit shuts down quickly.
Fan Motor Fault / Tachometer Error
E7
E7 error code appears and the unit will not start or stops immediately.
Door / Basket Safety Switch Open
E8
E8 error appears and the display or controls behave erratically.
Control Board Communication / EEPROM Error
E9
E9 error code and unit will not power on fully or shuts off randomly.
Low Voltage / Power Supply Fault
F1
F1 error on Chefman air fryer oven-style models; unit beeps and will not start.
Keypad / Touch Panel Fault
F2
F2 error appears when trying to set temperature or time.
Control Panel Communication Error
F3
F3 error and unit shuts off during preheat.
Overheat Detected by Cavity Sensor
F4
F4 error appears and the unit will not heat beyond low temperatures.
Heater Drive / Relay Fault
F5
F5 error and unit beeps continuously when powered.
Stuck Button / Key Short
H1
Display shows H1 and the unit will not start a cooking cycle.
High Temperature Lockout / Overheat Protection
H2
H2 error appears and the unit will not heat properly.
Low Temperature / Sensor Under-Range Error
Symptom
Air fryer does not power on at all (no lights, no beeps).
No Power / Dead Unit
Symptom
Air fryer fan is very loud, rattling, or grinding during operation.
Convection Fan Mechanical Noise / Bearing Wear
Symptom
Air fryer heats but does not reach set temperature or cooks very slowly.
Insufficient Heating / Temperature Regulation Fault
Symptom
Air fryer makes a high-pitched squealing noise when running.
Fan Motor Bearing Lubrication Failure
Symptom
Air fryer runs but does not heat (fan runs, no warmth inside).
Heating Element Not Energizing
Symptom
Air fryer shuts off mid-cycle and loses all power, then comes back after cooling.
Thermal Overload / Auto-Reset Thermostat Trip
Symptom
Basket is difficult to insert or remove; it scrapes or jams.
Basket Rail / Guide Deformation
Symptom
Burning smell or smoke coming from the air fryer during use.
Overheating / Grease Ignition Risk
Symptom
Buttons on the control panel do not respond or respond intermittently.
Keypad / Touch Interface Failure
Symptom
Display and lights flicker or dim when the heater cycles on.
Voltage Drop / Power Supply Instability
Symptom
Display is blank but the unit heats when the timer knob is turned (mechanical-timer models).
Indicator / LED Failure
Symptom
Door on oven-style Chefman air fryer does not close fully or pops open during cooking.
Door Latch / Hinge Misalignment
Symptom
Food is overcooked or burns quickly even at normal settings.
Overheating / Temperature Overshoot
Symptom
Food is undercooked or unevenly cooked (raw spots and overdone edges).
Uneven Airflow / Temperature Distribution
Symptom
Interior light (on oven-style models) does not turn on.
Cavity Lamp Failure
Symptom
Interior light stays on all the time, even when the unit is off.
Stuck Lamp Relay / Door Switch Fault
Symptom
Nonstick coating on basket or tray is peeling or flaking.
Coating Degradation / Surface Damage
Symptom
Oil or grease leaking from the bottom of the air fryer onto the counter.
Grease Leakage / Drip Tray Overflow
Symptom
Strong chemical or plastic smell from a new or lightly used Chefman air fryer.
Initial Burn-In Odor / Off-Gassing
Symptom
Timer knob does not advance or gets stuck on mechanical Chefman air fryer models.
Mechanical Timer Failure
Symptom
Unit emits a buzzing or humming noise even when not actively heating.
Transformer / Power Supply Hum
Symptom
Unit powers on but will not start cooking when Start button is pressed.
Start Circuit / Safety Interlock Not Engaged
Symptom
Unit trips the household circuit breaker or GFCI when plugged in or when heating starts.
Short Circuit / Ground Fault
Symptom
Unit vibrates excessively or moves on the countertop during operation.
Excessive Vibration / Imbalanced Fan or Loose Feet
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Air fryer will not start and displays E1 on the control panel.
|
NTC Temperature Sensor Open Circuit | View Details |
| E2 |
Air fryer beeps and shows E2 shortly after starting a cooking cycle.
|
NTC Temperature Sensor Short Circuit / Overheat Detection | View Details |
| E3 |
Display shows E3 and the air fryer shuts off or will not heat.
|
Overtemperature / Thermal Cutoff Trip | View Details |
| E4 |
E4 error appears and the unit will not start or stops mid-cycle.
|
Internal Temperature Sensor Range Error / Calibration Fault | View Details |
| E5 |
E5 error code appears and the air fryer will not heat.
|
Heater Circuit Fault / Open Heating Element | View Details |
| E6 |
E6 error appears and the fan does not run or the unit shuts down quickly.
|
Fan Motor Fault / Tachometer Error | View Details |
| E7 |
E7 error code appears and the unit will not start or stops immediately.
|
Door / Basket Safety Switch Open | View Details |
| E8 |
E8 error appears and the display or controls behave erratically.
|
Control Board Communication / EEPROM Error | View Details |
| E9 |
E9 error code and unit will not power on fully or shuts off randomly.
|
Low Voltage / Power Supply Fault | View Details |
| F1 |
F1 error on Chefman air fryer oven-style models; unit beeps and will not start.
|
Keypad / Touch Panel Fault | View Details |
| F2 |
F2 error appears when trying to set temperature or time.
|
Control Panel Communication Error | View Details |
| F3 |
F3 error and unit shuts off during preheat.
|
Overheat Detected by Cavity Sensor | View Details |
| F4 |
F4 error appears and the unit will not heat beyond low temperatures.
|
Heater Drive / Relay Fault | View Details |
| F5 |
F5 error and unit beeps continuously when powered.
|
Stuck Button / Key Short | View Details |
| H1 |
Display shows H1 and the unit will not start a cooking cycle.
|
High Temperature Lockout / Overheat Protection | View Details |
| H2 |
H2 error appears and the unit will not heat properly.
|
Low Temperature / Sensor Under-Range Error | View Details |
| – |
Air fryer does not power on at all (no lights, no beeps).
|
No Power / Dead Unit | View Details |
| – |
Air fryer fan is very loud, rattling, or grinding during operation.
|
Convection Fan Mechanical Noise / Bearing Wear | View Details |
| – |
Air fryer heats but does not reach set temperature or cooks very slowly.
|
Insufficient Heating / Temperature Regulation Fault | View Details |
| – |
Air fryer makes a high-pitched squealing noise when running.
|
Fan Motor Bearing Lubrication Failure | View Details |
| – |
Air fryer runs but does not heat (fan runs, no warmth inside).
|
Heating Element Not Energizing | View Details |
| – |
Air fryer shuts off mid-cycle and loses all power, then comes back after cooling.
|
Thermal Overload / Auto-Reset Thermostat Trip | View Details |
| – |
Basket is difficult to insert or remove; it scrapes or jams.
|
Basket Rail / Guide Deformation | View Details |
| – |
Burning smell or smoke coming from the air fryer during use.
|
Overheating / Grease Ignition Risk | View Details |
| – |
Buttons on the control panel do not respond or respond intermittently.
|
Keypad / Touch Interface Failure | View Details |
| – |
Display and lights flicker or dim when the heater cycles on.
|
Voltage Drop / Power Supply Instability | View Details |
| – |
Display is blank but the unit heats when the timer knob is turned (mechanical-timer models).
|
Indicator / LED Failure | View Details |
| – |
Door on oven-style Chefman air fryer does not close fully or pops open during cooking.
|
Door Latch / Hinge Misalignment | View Details |
| – |
Food is overcooked or burns quickly even at normal settings.
|
Overheating / Temperature Overshoot | View Details |
| – |
Food is undercooked or unevenly cooked (raw spots and overdone edges).
|
Uneven Airflow / Temperature Distribution | View Details |
| – |
Interior light (on oven-style models) does not turn on.
|
Cavity Lamp Failure | View Details |
| – |
Interior light stays on all the time, even when the unit is off.
|
Stuck Lamp Relay / Door Switch Fault | View Details |
| – |
Nonstick coating on basket or tray is peeling or flaking.
|
Coating Degradation / Surface Damage | View Details |
| – |
Oil or grease leaking from the bottom of the air fryer onto the counter.
|
Grease Leakage / Drip Tray Overflow | View Details |
| – |
Strong chemical or plastic smell from a new or lightly used Chefman air fryer.
|
Initial Burn-In Odor / Off-Gassing | View Details |
| – |
Timer knob does not advance or gets stuck on mechanical Chefman air fryer models.
|
Mechanical Timer Failure | View Details |
| – |
Unit emits a buzzing or humming noise even when not actively heating.
|
Transformer / Power Supply Hum | View Details |
| – |
Unit powers on but will not start cooking when Start button is pressed.
|
Start Circuit / Safety Interlock Not Engaged | View Details |
| – |
Unit trips the household circuit breaker or GFCI when plugged in or when heating starts.
|
Short Circuit / Ground Fault | View Details |
| – |
Unit vibrates excessively or moves on the countertop during operation.
|
Excessive Vibration / Imbalanced Fan or Loose Feet | View Details |
No matching codes found
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