Seeing the E1 error code on your Daewoo air fryer can be frustrating, especially when the appliance suddenly stops cooking or refuses to start. You may notice that the display shows E1 while the heating element and fan remain inactive.
This error generally indicates an internal electronic fault that needs attention. Understanding what causes it, how to identify the affected components, and which troubleshooting steps are safe can help you determine whether your air fryer needs a simple check, professional repair, or replacement.

What Does the E1 Error Code Mean on a Daewoo Air Fryer?
The E1 error code on a Daewoo air fryer generally indicates an internal electronic malfunction. Depending on the model, the problem may involve the temperature sensing circuit, electrical connections, or other electronic components.
For example, the Daewoo SDA2621 6L Air Fryer Pressure Cooker user manual identifies E1 as an electronic component error and recommends contacting customer support. However, it doesn’t identify one specific defective component responsible for the code.
Your air fryer uses several electrical components to control cooking. The heating element produces heat, the fan circulates hot air, and the control board manages the temperature and cooking time. Temperature sensing components help the appliance maintain the selected cooking temperature.
When one of these components develops an electrical fault, the control system may detect abnormal operation and display E1. The appliance might stop heating, interrupt an ongoing cooking cycle, or refuse to respond to certain controls.
However, E1 doesn’t have one confirmed meaning across every Daewoo air fryer model. Checking your specific model’s instructions is essential before attempting repairs.
Daewoo Air Fryer E1 Error Code [FIXED]: Likely Causes
Several internal electrical problems can potentially trigger the E1 error code on a Daewoo air fryer. Although the exact cause depends on the appliance’s design, the following faults are relevant possibilities when the control system reports an electronic malfunction.
1. A Faulty Temperature Sensor
The temperature sensor is an important component in your Daewoo air fryer. It monitors the temperature inside the cooking chamber and sends electrical information to the control board.
Many electronically controlled air fryers use an NTC thermistor for this purpose. NTC stands for Negative Temperature Coefficient. This type of sensor changes its electrical resistance as the temperature changes, allowing the appliance to monitor heating conditions.
If the sensor develops an internal fault, the control board may stop receiving reliable temperature information. Depending on the model’s electronics, this can produce an error and prevent normal cooking.
A sensor may fail because of a defective component, physical damage, or deterioration. However, the appearance of E1 doesn’t automatically confirm that the sensor has failed.
One possible clue is an error that appears immediately after the appliance receives power, even when the cooking chamber is completely cool. You might also notice that the error interrupts cooking without any obvious signs of overheating.
These symptoms can also occur with damaged wiring or a defective control board.
A faulty temperature sensor should only be confirmed through appropriate professional testing. Replacing it without checking the circuit could leave the actual problem unresolved.
2. Loose Internal Electrical Connections
Another possible cause is a loose electrical connection inside the air fryer.
Electrical wires and connectors link the temperature sensing components, control board, fan, and heating system. These connections allow the appliance to receive power and exchange the electrical signals required for normal operation.
If a connector becomes loose, the affected circuit may stop working properly. The control board could then detect an abnormal condition and prevent the appliance from operating.
Loose connections can develop because of manufacturing defects, physical damage, or deterioration of electrical contacts.
For example, an air fryer that has been dropped or damaged may develop internal connection problems even when the outer housing appears intact.
In some cases, an intermittent electrical connection may cause the appliance to behave unpredictably before the fault becomes permanent.
However, the timing of the error isn’t enough to distinguish loose wiring from other electronic problems. Because these connections are located inside the appliance, checking them requires professional electrical knowledge.
3. Damaged Temperature Sensor Wiring
The temperature sensing system depends on electrical wires that connect the sensor to the control board.
If one of these wires becomes damaged or breaks internally, the sensor’s signal may fail to reach the electronic control system.
This can create an open circuit, meaning the normal electrical path has been interrupted.
Possible reasons for damaged wiring include physical stress, defective insulation, or exposure to abnormal heat. For example, damage to a wire near the heating system could interfere with the temperature monitoring circuit.
You might notice E1 appearing unexpectedly after the air fryer has operated normally for a long time. If the problem developed following physical damage or an overheating incident, internal wiring damage becomes another possibility worth investigating.
However, E1 alone doesn’t prove that a sensor wire is broken. Proper electrical diagnosis is needed to distinguish damaged wiring from sensor and control board failures.
If you notice a burning smell, melted plastic, or visible damage, disconnect the appliance when safe and don’t attempt to restart it.
4. A Defective Electronic Control Board
The electronic control board manages the main functions of your Daewoo air fryer. It processes cooking settings, receives information from sensors, and controls the heating and fan systems.
If part of the board becomes defective, these functions may stop working correctly.
Electronic components can fail because of manufacturing defects, electrical damage, or other internal problems. Depending on the damaged circuit, the appliance may display an error instead of completing its normal operating sequence.
For instance, a fault in the circuitry responsible for processing temperature information could prevent the board from recognizing a functioning sensor.
The error may appear immediately when the appliance is plugged in or after a cooking cycle begins. You might also notice an unresponsive control panel or other unusual electronic behavior.
However, these symptoms can overlap with loose connections and sensor circuit faults.
Replacing the control board without confirming the diagnosis may be unnecessary and expensive. A qualified technician should determine whether the board itself is defective or whether another component is causing the malfunction.
Daewoo Air Fryer E1 Error Code [FIXED]: DIY Fixes
Although several safe checks can help you investigate the E1 error, a confirmed internal electronic malfunction usually requires professional attention.
The following troubleshooting steps will help you identify possible external problems without attempting unsafe electrical repairs.
1. Turn Off the Air Fryer and Disconnect Its Power Supply
The first step is to stop using your Daewoo air fryer as soon as E1 appears.
Because the error may indicate an internal electrical malfunction, continuing to operate the appliance could create unnecessary risks.
Follow these steps.
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Press the power or stop button if the controls still respond.
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Unplug the appliance from the wall outlet if the plug is safe to touch.
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Leave the air fryer on a stable, heat-resistant surface.
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Allow it to cool completely before handling removable components.
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Avoid repeatedly pressing the controls to restart the cooking cycle.
If you notice sparks, smoke, or a burning smell, disconnect the electrical supply only when it is safe to do so.
Don’t touch an unusually hot or visibly damaged plug.
Some electronic appliances clear temporary display problems after being disconnected from electricity.
However, unplugging your air fryer doesn’t repair a defective temperature sensor, broken wire, or damaged control board.
There is also no verified reset procedure that fixes every Daewoo model displaying E1. Consequently, don’t repeatedly reconnect the appliance in an attempt to force it to operate.
2. Check the Error Code and Identify Your Daewoo Model
Before deciding on a repair, confirm that the display actually shows E1.
Daewoo produces several air fryer designs, including digital basket models, dual basket appliances, and combination cooking units. Their electrical systems and troubleshooting instructions may differ.
For example, the Daewoo SDA2621 manual identifies E1, E2, E4, E5, and E6 as electronic component errors. However, it identifies E3 separately as an overheating condition related to insufficient liquid during pressure cooking.
This distinction shows why using the correct manual matters.
To identify your model, start by locating the rating label on the appliance.
The model number is usually printed on an identification label attached to the exterior, often underneath or behind the unit.
Make sure the appliance is disconnected and completely cool before moving it.
You should also check the original packaging or user manual if they’re available.
Once you’ve identified the model number, find the corresponding instructions through Daewoo’s official website or the retailer.
Read the troubleshooting section to determine how the manufacturer defines E1 for your particular appliance.
If your model’s manual instructs you to contact customer support, follow that recommendation rather than attempting internal repairs.
3. Inspect the Power Cord and Wall Outlet
Although a damaged power cord isn’t a confirmed cause of Daewoo’s E1 code, checking the external electrical supply can help you identify a separate safety problem.
Start by examining the power cord while the appliance remains unplugged.
Look for cuts, exposed insulation, crushed sections, or unusual discoloration.
Pay attention to the area where the cord enters the air fryer’s housing.
Next, examine the electrical plug for visible signs of overheating, including melted plastic or darkened areas around the pins.
If any part of the cord or plug appears damaged, don’t reconnect it.
You should also check the wall outlet for visible damage without removing its cover or touching the internal electrical contacts.
An outlet that shows signs of burning, sparking, or overheating should be examined by a qualified electrician.
Furthermore, confirm that your household electricity supply matches the voltage specified on the air fryer’s rating label.
Many Daewoo air fryers intended for the United Kingdom operate on a 220 to 240V supply, although you should always follow the specifications of your exact model.
Using an incompatible electrical supply can damage appliances.
However, changing outlets isn’t an established repair for an internal electronic fault.
If the external electrical supply appears normal, the E1 code may still require internal diagnosis.
4. Check the Basket or Cooking Pot Position
Some Daewoo air fryers include safety mechanisms that prevent normal operation when the basket or cooking pot isn’t positioned correctly.
For example, the SDA2621 user manual identifies an incorrectly inserted cooking pot as a possible reason the appliance fails to operate.
However, this is a separate troubleshooting issue and isn’t listed as the cause of E1 on that model.
You can still check the basket or pot position while the appliance is disconnected and cool.
Carefully remove the basket and examine its accessible surfaces.
Look for food particles, damaged parts, or objects that could prevent it from fitting correctly.
If your appliance uses a removable cooking pot, confirm that the pot is correctly assembled according to the manufacturer’s instructions.
Next, reinstall the basket or pot gently.
It should fit securely without requiring excessive force.
If the basket doesn’t slide smoothly, avoid pushing it aggressively because this could damage the appliance.
A basket positioning problem may prevent normal operation, but correcting it shouldn’t be treated as a confirmed E1 repair.
If the error has already appeared, leave the appliance disconnected until the manufacturer confirms that it’s safe to use.
5. Clean the Accessible Parts and Check for Visible Damage
Grease and food particles can accumulate inside an air fryer during normal cooking.
Although ordinary food residue isn’t an established cause of the E1 error, cleaning the accessible parts can help you identify maintenance problems and visible damage.
Start by making sure the appliance is unplugged and completely cool.
Remove the cooking basket, rack, or tray according to your model’s instructions.
Wash suitable removable components using warm water, mild dish soap, and a soft sponge.
Only place components in a dishwasher if the user manual specifically identifies them as dishwasher safe.
For the main housing, use a lightly dampened cloth to wipe accessible surfaces.
Avoid pouring water into the appliance or allowing moisture to enter the electrical openings.
You should also check the accessible air vents for visible obstructions.
Don’t insert metal objects, brushes, or other tools into the ventilation openings.
After cleaning, allow the removable parts to dry thoroughly.
While handling them, look for cracks, melted areas, or other unusual damage.
If you discover signs of overheating or electrical damage, stop the inspection and seek professional assistance.
Cleaning helps maintain the appliance, but it won’t restore a broken temperature sensor circuit or repair a defective control board.
Therefore, don’t assume that E1 has been resolved simply because the air fryer is clean.
6. Contact Daewoo Customer Support or a Qualified Technician
If your Daewoo air fryer displays E1, contacting customer support is the most appropriate solution.
This is particularly important when the error persists, the appliance stops heating unexpectedly, or there are signs of electrical damage.
Daewoo’s troubleshooting guidance for the SDA2621 recommends contacting customer care for electronic component errors.
Before reaching out, gather the following information.
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Your air fryer’s complete model number.
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The purchase date and proof of purchase.
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A description of when the E1 code first appeared.
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Whether the error appeared during cooking or immediately after connecting power.
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Any unusual smells, noises, or visible damage.
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Details of any safe external checks you’ve completed.
Providing these details can help the support team determine the appropriate next step.
If your appliance is still under warranty, contact the retailer or manufacturer to find out whether repair or replacement is available.
For appliances outside warranty coverage, ask whether professional servicing is practical.
A qualified technician may need to examine the temperature sensor, electrical connections, wiring, and control board to locate the fault.
Depending on the diagnosis, the repair could involve replacing a defective component or addressing damaged electrical connections.
However, the cost of an internal electronic repair may approach the price of a replacement air fryer.
Avoid attempting to open the housing, replace internal wiring, or bypass temperature monitoring components yourself.
These procedures can expose you to electrical hazards and may affect your warranty.
Wrapping Up
The Daewoo air fryer E1 error code generally indicates an internal electronic malfunction. Depending on your model, a temperature sensor problem, loose connection, damaged wiring, or defective control board could be responsible. Identifying the exact fault requires appropriate diagnosis rather than relying on the error code alone.
When E1 appears, disconnect your air fryer, confirm the code using your model’s manual, and inspect the accessible exterior for damage. If the error indicates an internal fault, contact Daewoo customer support or a qualified technician. Taking the appropriate action helps prevent further damage and keeps your appliance safe to use.