Ultrean
Ultrean 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 / Overrange
E3
Display shows E3 and the air fryer stops heating during operation.
Overtemperature Protection / High Temperature Error
E4
Air fryer displays E4 and will not start a cooking cycle.
Overheat / Thermal Fuse or Thermostat Trip Detection
E5
Display shows E5 and the unit shuts off or will not heat.
Heater Circuit Fault / Open Heating Element
E6
Air fryer displays E6 and beeps, refusing to start or abruptly stopping mid-cycle.
Fan Motor Fault / Fan Speed Error
E7
Display shows E7 and the unit will not respond to temperature or time settings.
Keypad / Touch Panel Communication Error
E8
Air fryer shows E8 and shuts down or will not power on fully.
Low Voltage / Power Supply Error
E9
Display shows E9 and the unit will not start or stops shortly after starting.
Door/Basket Detection Error
Symptom
Air fryer basket does not lock in place; unit will not start because it thinks the basket is not inserted.
Basket Latch / Locking Mechanism Failure
Symptom
Air fryer basket is difficult to insert or remove; it jams or scrapes against the housing.
Basket Rail Misalignment / Warped Basket
Symptom
Air fryer continues to run the fan for a long time after the cooking cycle ends.
Extended Cool-Down Fan Operation
Symptom
Air fryer display flickers or dims during operation, especially when the heater cycles on.
Voltage Drop / Weak Power Supply
Symptom
Air fryer display is very dim or unreadable, but unit still heats and cooks.
LED Display Failure / Backlight Degradation
Symptom
Air fryer display shows incorrect temperature or time compared to settings; settings change by themselves.
Control Panel Calibration / Encoder Fault
Symptom
Air fryer emits a burning smell or smoke (not just food steam) during use.
Overheating / Grease Ignition Risk
Symptom
Air fryer emits a high-pitched whine or electrical buzzing sound during operation.
Electrical Noise from Power Supply or Fan
Symptom
Air fryer exterior becomes excessively hot to the touch during normal use.
Insulation Degradation / Poor Heat Shielding
Symptom
Air fryer fan does not run, but the unit heats up; food burns quickly near the top.
Fan Motor Not Running
Symptom
Air fryer fan is very loud, rattling, or grinding during operation.
Noisy Convection Fan / Fan Bearing Wear
Symptom
Air fryer heats but never reaches set temperature; cooking is consistently underdone and preheat takes very long.
Weak Heating Element or Temperature Sensor Drift
Symptom
Air fryer interior light (if equipped) does not turn on, but unit otherwise works normally.
Cavity Lamp Failure
Symptom
Air fryer makes a clicking sound repeatedly during operation.
Relay Operation / Thermal Expansion Noise
Symptom
Air fryer powers on but does not heat; fan runs and timer counts down but food remains cold.
Heating Element Failure
Symptom
Air fryer produces a strong plastic or chemical odor even after several uses.
Off-gassing of Internal Components / Residue on Heating Surfaces
Symptom
Air fryer runs but food cooks unevenly; some areas are burnt while others are undercooked.
Uneven Airflow / Fan or Basket Obstruction
Symptom
Air fryer starts then shuts off randomly before the timer ends; display may go blank and then come back.
Intermittent Power Loss
Symptom
Air fryer trips the household circuit breaker or GFCI when starting or during use.
Short Circuit / Ground Fault
Symptom
Air fryer will not power on at all; no lights or display when plugged in.
No Power / Dead Unit
Symptom
Buttons beep but the air fryer will not start cooking; timer and temperature can be set but heater and fan never turn on.
Start Command Not Reaching Power Stage
Symptom
Condensation or water droplets form on the control panel or drip from the front during cooking.
Condensation Management / Steam Leakage
Symptom
Display lights up but buttons do not respond or respond intermittently.
Unresponsive Touch Panel / Keypad Failure
Symptom
Display works but timer does not count down; cooking cycle never ends unless manually stopped.
Timer Circuit / Microcontroller Logic Fault
Symptom
Non-stick coating on the basket or pan is peeling or flaking.
Coating Degradation / Surface Damage
| 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 / Overrange | View Details |
| E3 |
Display shows E3 and the air fryer stops heating during operation.
|
Overtemperature Protection / High Temperature Error | View Details |
| E4 |
Air fryer displays E4 and will not start a cooking cycle.
|
Overheat / Thermal Fuse or Thermostat Trip Detection | View Details |
| E5 |
Display shows E5 and the unit shuts off or will not heat.
|
Heater Circuit Fault / Open Heating Element | View Details |
| E6 |
Air fryer displays E6 and beeps, refusing to start or abruptly stopping mid-cycle.
|
Fan Motor Fault / Fan Speed Error | View Details |
| E7 |
Display shows E7 and the unit will not respond to temperature or time settings.
|
Keypad / Touch Panel Communication Error | View Details |
| E8 |
Air fryer shows E8 and shuts down or will not power on fully.
|
Low Voltage / Power Supply Error | View Details |
| E9 |
Display shows E9 and the unit will not start or stops shortly after starting.
|
Door/Basket Detection Error | View Details |
| – |
Air fryer basket does not lock in place; unit will not start because it thinks the basket is not inserted.
|
Basket Latch / Locking Mechanism Failure | View Details |
| – |
Air fryer basket is difficult to insert or remove; it jams or scrapes against the housing.
|
Basket Rail Misalignment / Warped Basket | View Details |
| – |
Air fryer continues to run the fan for a long time after the cooking cycle ends.
|
Extended Cool-Down Fan Operation | View Details |
| – |
Air fryer display flickers or dims during operation, especially when the heater cycles on.
|
Voltage Drop / Weak Power Supply | View Details |
| – |
Air fryer display is very dim or unreadable, but unit still heats and cooks.
|
LED Display Failure / Backlight Degradation | View Details |
| – |
Air fryer display shows incorrect temperature or time compared to settings; settings change by themselves.
|
Control Panel Calibration / Encoder Fault | View Details |
| – |
Air fryer emits a burning smell or smoke (not just food steam) during use.
|
Overheating / Grease Ignition Risk | View Details |
| – |
Air fryer emits a high-pitched whine or electrical buzzing sound during operation.
|
Electrical Noise from Power Supply or Fan | View Details |
| – |
Air fryer exterior becomes excessively hot to the touch during normal use.
|
Insulation Degradation / Poor Heat Shielding | View Details |
| – |
Air fryer fan does not run, but the unit heats up; food burns quickly near the top.
|
Fan Motor Not Running | View Details |
| – |
Air fryer fan is very loud, rattling, or grinding during operation.
|
Noisy Convection Fan / Fan Bearing Wear | View Details |
| – |
Air fryer heats but never reaches set temperature; cooking is consistently underdone and preheat takes very long.
|
Weak Heating Element or Temperature Sensor Drift | View Details |
| – |
Air fryer interior light (if equipped) does not turn on, but unit otherwise works normally.
|
Cavity Lamp Failure | View Details |
| – |
Air fryer makes a clicking sound repeatedly during operation.
|
Relay Operation / Thermal Expansion Noise | View Details |
| – |
Air fryer powers on but does not heat; fan runs and timer counts down but food remains cold.
|
Heating Element Failure | View Details |
| – |
Air fryer produces a strong plastic or chemical odor even after several uses.
|
Off-gassing of Internal Components / Residue on Heating Surfaces | View Details |
| – |
Air fryer runs but food cooks unevenly; some areas are burnt while others are undercooked.
|
Uneven Airflow / Fan or Basket Obstruction | View Details |
| – |
Air fryer starts then shuts off randomly before the timer ends; display may go blank and then come back.
|
Intermittent Power Loss | View Details |
| – |
Air fryer trips the household circuit breaker or GFCI when starting or during use.
|
Short Circuit / Ground Fault | View Details |
| – |
Air fryer will not power on at all; no lights or display when plugged in.
|
No Power / Dead Unit | View Details |
| – |
Buttons beep but the air fryer will not start cooking; timer and temperature can be set but heater and fan never turn on.
|
Start Command Not Reaching Power Stage | View Details |
| – |
Condensation or water droplets form on the control panel or drip from the front during cooking.
|
Condensation Management / Steam Leakage | View Details |
| – |
Display lights up but buttons do not respond or respond intermittently.
|
Unresponsive Touch Panel / Keypad Failure | View Details |
| – |
Display works but timer does not count down; cooking cycle never ends unless manually stopped.
|
Timer Circuit / Microcontroller Logic Fault | View Details |
| – |
Non-stick coating on the basket or pan is peeling or flaking.
|
Coating Degradation / Surface Damage | View Details |
No matching codes found
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