Cosori
Cosori Air Fryers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
Advertisements
E1
Display shows E1 and cooking will not start or stops shortly after starting.
High Temperature Sensor Open Circuit
E10
Display shows E10 and the unit will not start or shuts down with a beep.
Internal Overcurrent / Short Circuit Protection
E2
Display shows E2 and the air fryer will not heat or shuts down quickly.
High Temperature Sensor Short Circuit
E3
Display shows E3 and the unit beeps and stops heating shortly after starting a cook cycle.
Overheat Protection Triggered (High Temperature Fault)
E4
Display shows E4 and the air fryer will not start or stops mid-cycle.
Overvoltage / Power Supply Protection Fault
E5
Display shows E5 and the unit will not start a cooking cycle.
Low Voltage / Power Supply Fault
E6
Display shows E6 and the air fryer beeps and stops heating.
Heating Element Circuit Fault
E7
Display shows E7 and the air fryer will not start or stops shortly after starting.
Fan Motor / Airflow Fault
E8
Display shows E8 and the unit will not start or shuts down unexpectedly.
Internal Communication / Control Fault
E9
Display shows E9 and the air fryer will not start or stops mid-cycle.
Door/Basket Detection Fault
Symptom
Air fryer emits a strong burning plastic or electrical smell during use.
Overheating Wiring or Component Failure
Symptom
Air fryer exterior gets extremely hot to the touch during use.
Insulation or Airflow Deficiency
Symptom
Air fryer fan is very loud, rattling, or grinding during operation.
Noisy or Worn Convection Fan Assembly
Symptom
Air fryer leaks liquid or grease from the bottom onto the counter.
Basket Seal or Drawer Leak
Symptom
Air fryer powers on but buttons do not respond or respond intermittently.
Unresponsive Touch Control Panel
Symptom
Air fryer powers on but does not heat; fan runs and timer counts down, but food remains cold.
Open Heating Element or Heater Relay Failure
Symptom
Air fryer produces excessive smoke during cooking, especially with fatty foods.
Grease Accumulation and Overheating
Symptom
Air fryer shuts off mid-cycle and loses all power, then may come back on after cooling.
Thermal Cutoff / Overheat Trip
Symptom
Air fryer will not power on at all; display is blank and no lights or sounds.
No Power / Dead Unit
Symptom
Basket handle feels loose or wobbly; risk of basket separating when lifted.
Loose or Damaged Basket Handle Assembly
Symptom
Basket is difficult to insert or remove; it sticks or jams in the housing.
Basket Rail or Latch Misalignment
Symptom
Beeping continuously or random beeps when not in use.
Phantom Key Press or Alert Fault
Symptom
Condensation or water droplets forming on the control panel or around the door/basket area.
Steam Management / Condensation Issue
Symptom
Display flickers or dims during operation, but the unit continues to cook.
Unstable Low-Voltage Supply to Display
Symptom
Display shows random characters or garbled segments.
Display Module or Data Line Fault
Symptom
Display works but the start button does nothing; unit will not begin cooking.
Start Command Not Reaching Control Board
Symptom
Food cooks unevenly; some areas are burnt while others are undercooked.
Uneven Airflow or Temperature Distribution
Symptom
Interior light (if equipped) does not turn on during cooking.
Failed Cavity Light Circuit
Symptom
Non-stick coating on basket or crisper plate is peeling or flaking.
Degraded Non-Stick Coating
Symptom
Temperature is inaccurate; food undercooks or overcooks at set temperature.
Temperature Sensing or Control Calibration Error
Symptom
Timer counts down too fast or too slow compared to real time.
Control Board Timing Circuit Error
Symptom
Unit makes a high-pitched whining or electrical buzzing noise when heating.
Electrical Noise from Power Electronics
Symptom
Unit trips the household circuit breaker or GFCI when starting a cook cycle.
Ground Fault or Overcurrent on Startup
Symptom
Unit vibrates excessively or moves on the countertop during operation.
Excessive Vibration from Fan Imbalance
Symptom
Wi‑Fi–enabled Cosori air fryer will not connect to the app or frequently disconnects.
Wireless Connectivity Fault
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Display shows E1 and cooking will not start or stops shortly after starting.
|
High Temperature Sensor Open Circuit | View Details |
| E10 |
Display shows E10 and the unit will not start or shuts down with a beep.
|
Internal Overcurrent / Short Circuit Protection | View Details |
| E2 |
Display shows E2 and the air fryer will not heat or shuts down quickly.
|
High Temperature Sensor Short Circuit | View Details |
| E3 |
Display shows E3 and the unit beeps and stops heating shortly after starting a cook cycle.
|
Overheat Protection Triggered (High Temperature Fault) | View Details |
| E4 |
Display shows E4 and the air fryer will not start or stops mid-cycle.
|
Overvoltage / Power Supply Protection Fault | View Details |
| E5 |
Display shows E5 and the unit will not start a cooking cycle.
|
Low Voltage / Power Supply Fault | View Details |
| E6 |
Display shows E6 and the air fryer beeps and stops heating.
|
Heating Element Circuit Fault | View Details |
| E7 |
Display shows E7 and the air fryer will not start or stops shortly after starting.
|
Fan Motor / Airflow Fault | View Details |
| E8 |
Display shows E8 and the unit will not start or shuts down unexpectedly.
|
Internal Communication / Control Fault | View Details |
| E9 |
Display shows E9 and the air fryer will not start or stops mid-cycle.
|
Door/Basket Detection Fault | View Details |
| – |
Air fryer emits a strong burning plastic or electrical smell during use.
|
Overheating Wiring or Component Failure | View Details |
| – |
Air fryer exterior gets extremely hot to the touch during use.
|
Insulation or Airflow Deficiency | View Details |
| – |
Air fryer fan is very loud, rattling, or grinding during operation.
|
Noisy or Worn Convection Fan Assembly | View Details |
| – |
Air fryer leaks liquid or grease from the bottom onto the counter.
|
Basket Seal or Drawer Leak | View Details |
| – |
Air fryer powers on but buttons do not respond or respond intermittently.
|
Unresponsive Touch Control Panel | View Details |
| – |
Air fryer powers on but does not heat; fan runs and timer counts down, but food remains cold.
|
Open Heating Element or Heater Relay Failure | View Details |
| – |
Air fryer produces excessive smoke during cooking, especially with fatty foods.
|
Grease Accumulation and Overheating | View Details |
| – |
Air fryer shuts off mid-cycle and loses all power, then may come back on after cooling.
|
Thermal Cutoff / Overheat Trip | View Details |
| – |
Air fryer will not power on at all; display is blank and no lights or sounds.
|
No Power / Dead Unit | View Details |
| – |
Basket handle feels loose or wobbly; risk of basket separating when lifted.
|
Loose or Damaged Basket Handle Assembly | View Details |
| – |
Basket is difficult to insert or remove; it sticks or jams in the housing.
|
Basket Rail or Latch Misalignment | View Details |
| – |
Beeping continuously or random beeps when not in use.
|
Phantom Key Press or Alert Fault | View Details |
| – |
Condensation or water droplets forming on the control panel or around the door/basket area.
|
Steam Management / Condensation Issue | View Details |
| – |
Display flickers or dims during operation, but the unit continues to cook.
|
Unstable Low-Voltage Supply to Display | View Details |
| – |
Display shows random characters or garbled segments.
|
Display Module or Data Line Fault | View Details |
| – |
Display works but the start button does nothing; unit will not begin cooking.
|
Start Command Not Reaching Control Board | View Details |
| – |
Food cooks unevenly; some areas are burnt while others are undercooked.
|
Uneven Airflow or Temperature Distribution | View Details |
| – |
Interior light (if equipped) does not turn on during cooking.
|
Failed Cavity Light Circuit | View Details |
| – |
Non-stick coating on basket or crisper plate is peeling or flaking.
|
Degraded Non-Stick Coating | View Details |
| – |
Temperature is inaccurate; food undercooks or overcooks at set temperature.
|
Temperature Sensing or Control Calibration Error | View Details |
| – |
Timer counts down too fast or too slow compared to real time.
|
Control Board Timing Circuit Error | View Details |
| – |
Unit makes a high-pitched whining or electrical buzzing noise when heating.
|
Electrical Noise from Power Electronics | View Details |
| – |
Unit trips the household circuit breaker or GFCI when starting a cook cycle.
|
Ground Fault or Overcurrent on Startup | View Details |
| – |
Unit vibrates excessively or moves on the countertop during operation.
|
Excessive Vibration from Fan Imbalance | View Details |
| – |
Wi‑Fi–enabled Cosori air fryer will not connect to the app or frequently disconnects.
|
Wireless Connectivity Fault | View Details |
No matching codes found
Advertisements