Crux
Crux Air Fryers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
Advertisements
E1
Air fryer will not start; display shows E1 immediately after power-on or when pressing the Start button.
NTC Temperature Sensor Open Circuit
E10
E10 appears and the air fryer will not start; sometimes accompanied by beeping.
Door/Basket Detection Fault
E11
E11 error appears; unit powers but buttons or touch panel do not respond correctly.
Touch Panel / Keypad Fault
E12
E12 is displayed; unit may not heat or may shut off when reaching higher temperatures.
Secondary Overheat / Exhaust Temperature Fault
E2
Air fryer beeps and shows E2; cooking will not start or stops shortly after starting.
NTC Temperature Sensor Short Circuit / Overrange
E3
Display shows E3 during preheat or cooking; unit may shut off or refuse to start a new cycle.
Overtemperature Protection / High Temperature Fault
E4
E4 appears on the display and the air fryer will not heat or stops mid-cycle.
Overheat / Thermal Fuse Open or Heater Circuit Fault
E5
E5 error appears and the air fryer will not start or stops shortly after starting.
Power Supply / Overcurrent Protection Fault
E6
E6 is displayed and the unit will not heat; fan may still run.
Heater Drive Circuit Failure
E7
E7 appears on the display; fan does not run and unit may shut down quickly.
Fan Motor Fault / Fan Tachometer Error
E8
E8 error code appears; unit may power on but controls are unresponsive or shut down unexpectedly.
Low Voltage / Power Supply Regulation Error
E9
E9 is displayed; unit may not start or may shut off mid-cycle without heating properly.
Internal Communication Error / MCU Fault
Symptom
Air fryer fan runs but there is very little or no airflow from the exhaust; food cooks unevenly.
Restricted Airflow / Fan Performance Degradation
Symptom
Air fryer powers on but does not heat; fan runs and timer counts down, food remains cold.
Open Heating Element or Heater Circuit Failure
Symptom
Air fryer shuts off mid-cycle and loses all power; may come back on after cooling.
Thermal Overload / Overheat Shutdown
Symptom
Basket handle feels loose or wobbly; may feel like it will detach when lifting.
Loose Handle / Fastener Failure
Symptom
Basket or drawer is difficult to insert or remove; may stick or jam.
Mechanical Drawer Misalignment / Warped Components
Symptom
Condensation or water droplets appear around the control panel or on the countertop near the unit.
Condensation from Steam Exhaust
Symptom
Display and lights work but pressing Start does nothing; no fan, no heater.
Start Circuit / Safety Interlock Not Engaging
Symptom
Display flickers, dims, or resets randomly during cooking.
Unstable Power Supply / Loose Connection
Symptom
Display shows incorrect time or temperature compared to what was set; settings change unexpectedly.
Control Logic / Encoder Fault
Symptom
Display works but temperature or time cannot be adjusted; some buttons do nothing.
Partial Keypad / Touch Panel Failure
Symptom
Excessive smoke from the air fryer during normal cooking; sometimes oil droplets around exhaust.
Oil Overheating / Grease Ignition Risk
Symptom
Exterior of the air fryer becomes excessively hot to the touch during normal use.
Insulation / Heat Shield Degradation
Symptom
Food is burnt on the outside but raw inside; edges over-brown quickly.
Overheating / Temperature Calibration Error
Symptom
Food is undercooked or takes much longer than recipe times, even at maximum temperature.
Reduced Heating Performance
Symptom
High-pitched squealing noise when the air fryer is running.
Dry or Failing Fan Motor Bearings
Symptom
Loud rattling, grinding, or scraping noise during operation, especially at higher temperatures.
Fan Motor Bearing Wear or Fan Interference
Symptom
Non-stick coating on basket or drawer is peeling or flaking.
Coating Degradation / Surface Damage
Symptom
Oil or food drips from the bottom of the air fryer onto the counter.
Leakage from Drawer / Basket Seal Failure
Symptom
Strong burnt food smell persists even at low temperatures; smoke may appear from exhaust.
Grease and Residue Buildup on Heater and Interior
Symptom
Unit beeps repeatedly and will not start; display may show a basket icon but no error code.
Basket Not Detected / Safety Interlock Active
Symptom
Unit emits a burning plastic or electrical smell during use.
Overheating Wiring or Component Failure
Symptom
Unit is unusually loud compared to previous operation, with a constant roaring or humming.
Fan Noise / Airflow Turbulence
Symptom
Unit runs but interior light (if equipped) does not turn on.
Cavity Light Failure
Symptom
Unit trips the household circuit breaker or GFCI when starting or during heating.
Overcurrent or Ground Fault
Symptom
Unit vibrates excessively or moves slightly on the countertop during operation.
Imbalance / Vibration Issue
Symptom
Unit will not power on at all; no lights, no display, no beeps.
No Power / Dead Appliance
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Air fryer will not start; display shows E1 immediately after power-on or when pressing the Start button.
|
NTC Temperature Sensor Open Circuit | View Details |
| E10 |
E10 appears and the air fryer will not start; sometimes accompanied by beeping.
|
Door/Basket Detection Fault | View Details |
| E11 |
E11 error appears; unit powers but buttons or touch panel do not respond correctly.
|
Touch Panel / Keypad Fault | View Details |
| E12 |
E12 is displayed; unit may not heat or may shut off when reaching higher temperatures.
|
Secondary Overheat / Exhaust Temperature Fault | View Details |
| E2 |
Air fryer beeps and shows E2; cooking will not start or stops shortly after starting.
|
NTC Temperature Sensor Short Circuit / Overrange | View Details |
| E3 |
Display shows E3 during preheat or cooking; unit may shut off or refuse to start a new cycle.
|
Overtemperature Protection / High Temperature Fault | View Details |
| E4 |
E4 appears on the display and the air fryer will not heat or stops mid-cycle.
|
Overheat / Thermal Fuse Open or Heater Circuit Fault | View Details |
| E5 |
E5 error appears and the air fryer will not start or stops shortly after starting.
|
Power Supply / Overcurrent Protection Fault | View Details |
| E6 |
E6 is displayed and the unit will not heat; fan may still run.
|
Heater Drive Circuit Failure | View Details |
| E7 |
E7 appears on the display; fan does not run and unit may shut down quickly.
|
Fan Motor Fault / Fan Tachometer Error | View Details |
| E8 |
E8 error code appears; unit may power on but controls are unresponsive or shut down unexpectedly.
|
Low Voltage / Power Supply Regulation Error | View Details |
| E9 |
E9 is displayed; unit may not start or may shut off mid-cycle without heating properly.
|
Internal Communication Error / MCU Fault | View Details |
| – |
Air fryer fan runs but there is very little or no airflow from the exhaust; food cooks unevenly.
|
Restricted Airflow / Fan Performance Degradation | View Details |
| – |
Air fryer powers on but does not heat; fan runs and timer counts down, food remains cold.
|
Open Heating Element or Heater Circuit Failure | View Details |
| – |
Air fryer shuts off mid-cycle and loses all power; may come back on after cooling.
|
Thermal Overload / Overheat Shutdown | View Details |
| – |
Basket handle feels loose or wobbly; may feel like it will detach when lifting.
|
Loose Handle / Fastener Failure | View Details |
| – |
Basket or drawer is difficult to insert or remove; may stick or jam.
|
Mechanical Drawer Misalignment / Warped Components | View Details |
| – |
Condensation or water droplets appear around the control panel or on the countertop near the unit.
|
Condensation from Steam Exhaust | View Details |
| – |
Display and lights work but pressing Start does nothing; no fan, no heater.
|
Start Circuit / Safety Interlock Not Engaging | View Details |
| – |
Display flickers, dims, or resets randomly during cooking.
|
Unstable Power Supply / Loose Connection | View Details |
| – |
Display shows incorrect time or temperature compared to what was set; settings change unexpectedly.
|
Control Logic / Encoder Fault | View Details |
| – |
Display works but temperature or time cannot be adjusted; some buttons do nothing.
|
Partial Keypad / Touch Panel Failure | View Details |
| – |
Excessive smoke from the air fryer during normal cooking; sometimes oil droplets around exhaust.
|
Oil Overheating / Grease Ignition Risk | View Details |
| – |
Exterior of the air fryer becomes excessively hot to the touch during normal use.
|
Insulation / Heat Shield Degradation | View Details |
| – |
Food is burnt on the outside but raw inside; edges over-brown quickly.
|
Overheating / Temperature Calibration Error | View Details |
| – |
Food is undercooked or takes much longer than recipe times, even at maximum temperature.
|
Reduced Heating Performance | View Details |
| – |
High-pitched squealing noise when the air fryer is running.
|
Dry or Failing Fan Motor Bearings | View Details |
| – |
Loud rattling, grinding, or scraping noise during operation, especially at higher temperatures.
|
Fan Motor Bearing Wear or Fan Interference | View Details |
| – |
Non-stick coating on basket or drawer is peeling or flaking.
|
Coating Degradation / Surface Damage | View Details |
| – |
Oil or food drips from the bottom of the air fryer onto the counter.
|
Leakage from Drawer / Basket Seal Failure | View Details |
| – |
Strong burnt food smell persists even at low temperatures; smoke may appear from exhaust.
|
Grease and Residue Buildup on Heater and Interior | View Details |
| – |
Unit beeps repeatedly and will not start; display may show a basket icon but no error code.
|
Basket Not Detected / Safety Interlock Active | View Details |
| – |
Unit emits a burning plastic or electrical smell during use.
|
Overheating Wiring or Component Failure | View Details |
| – |
Unit is unusually loud compared to previous operation, with a constant roaring or humming.
|
Fan Noise / Airflow Turbulence | View Details |
| – |
Unit runs but interior light (if equipped) does not turn on.
|
Cavity Light Failure | View Details |
| – |
Unit trips the household circuit breaker or GFCI when starting or during heating.
|
Overcurrent or Ground Fault | View Details |
| – |
Unit vibrates excessively or moves slightly on the countertop during operation.
|
Imbalance / Vibration Issue | View Details |
| – |
Unit will not power on at all; no lights, no display, no beeps.
|
No Power / Dead Appliance | View Details |
No matching codes found
Advertisements