Tristar

Tristar 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
E10
E10 error code appears and the unit will not start preheating.
Internal Temperature Calibration Error
E2
Air fryer beeps and shows E2 shortly after starting a cooking cycle.
NTC Temperature Sensor Short Circuit
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 Protection Trip / Thermal Fuse Open
E5
E5 appears on the display and the unit shuts off shortly after starting.
Fan Motor Fault / Fan Speed Error
E6
Display shows E6 and the air fryer will not heat.
Heating Element Circuit Fault
E7
E7 error appears and the unit will not start; sometimes accompanied by beeping.
Door/Basket Switch Fault
E8
Air fryer shows E8 and shuts down unexpectedly during cooking.
Power Supply / Low Voltage Error
E9
E9 appears on the display and the unit will not respond to temperature or time settings.
Control Panel / Keypad Communication Error
Symptom
Air fryer beeps repeatedly and will not start, even though display looks normal.
Safety Interlock / Error State Without Code
Symptom
Air fryer does not power on at all; no lights, no beeps.
No Power / Dead Unit
Symptom
Air fryer exterior becomes excessively hot to the touch during normal use.
Insulation / Heat Shield Degradation
Symptom
Air fryer fan is very loud, rattling, or grinding during operation.
Noisy Convection Fan / Fan Bearing Wear
Symptom
Air fryer makes a high-pitched squealing noise when running.
Fan Motor Bearing Lubrication Failure
Symptom
Air fryer powers on but does not heat; fan runs and timer counts down, food remains cold.
Heating Element Failure
Symptom
Air fryer shuts off mid-cycle and loses all power; may restart after cooling.
Thermal Overload / Intermittent Power Loss
Symptom
Air fryer takes much longer than normal to reach temperature or cook food.
Reduced Heating Performance
Symptom
Air fryer vibrates excessively or moves on the countertop during use.
Excessive Vibration / Imbalanced Fan or Loose Housing
Symptom
Basket does not lock securely; air fryer reports door/basket open or stops mid-cycle.
Basket Latch / Switch Actuator Failure
Symptom
Basket is difficult to insert or remove; unit may not start because basket is not detected.
Basket Rail / Latch Misalignment
Symptom
Buttons register the wrong function (e.g., pressing temperature changes time).
Keypad Matrix / Control Logic Error
Symptom
Condensation or small amounts of water appear under or around the air fryer after use.
Condensation Drip / Moisture Management
Symptom
Display and lights work, but fan does not run; food burns near heater.
Fan Not Running / No Air Circulation
Symptom
Display flickers or resets when heater turns on.
Voltage Drop / Power Supply Instability
Symptom
Display is very dim or partially unreadable, but unit still functions.
LED Display Degradation / Backlight Failure
Symptom
Food cooks unevenly; some areas burnt while others are undercooked.
Uneven Heating / Airflow Distribution Problem
Symptom
Non-stick coating on basket or pan is peeling or flaking.
Coating Degradation / Surface Damage
Symptom
Oil or grease drips from the bottom of the air fryer onto the counter.
Grease Leakage
Symptom
Persistent plastic or electrical burning smell from new or lightly used air fryer.
Component Overheating / Insulation Off-Gassing
Symptom
Strong burning smell or smoke from the air fryer during use (not just initial burn-in).
Overheating / Grease Ignition Risk
Symptom
Timer counts down but heater and fan both remain off; only display is active.
Control Logic / Relay Drive Failure
Symptom
Unit emits a loud pop and then stops working; may trip household breaker.
Short Circuit / Component Explosion
Symptom
Unit powers on but buttons do not respond or respond intermittently.
Unresponsive Touch Control Panel
Symptom
Unit starts by itself or changes settings without user input.
Phantom Touch / Control Panel Ghosting
Symptom
Unit trips the household GFCI or RCD outlet when turned on.
Ground Fault / Leakage Current
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