AEG Tumble Dryer F01 Error Code: What It Means and How to Fix It

Step 1 – Reset the dryer first: Before anything else, switch the dryer off at the wall socket, wait a full 10 minutes, then switch it back on and try a short cycle. A temporary sensor glitch or power fluctuation can trigger F01, and a full power reset clears the fault memory. This costs nothing and takes seconds.

Step 2 – Clean the fluff filter thoroughly: Remove the fluff filter (usually located inside the door rim) and clean it under running water if it has a fine mesh. A blocked filter is one of the most overlooked causes of temperature-related faults. Allow it to dry completely before reinserting. Do this after every cycle as routine maintenance.

Step 3 – Clean the condenser unit (condenser and heat pump models): On condenser models, remove the condenser unit from the bottom front panel — consult your AEG model’s manual for the exact release mechanism. Rinse it under a cold tap until the water runs clear, then leave it to dry fully before refitting. A blocked condenser causes heat build-up that can trigger F01.

Step 4 – Empty the water reservoir (condenser/heat pump models): If the water collection drawer is full, empty it and ensure the drawer is properly seated. A sensor in the drawer can affect dryer operation and, in some models, contribute to error flags.

Step 5 – Check the exhaust duct (vented models): If you have a vented tumble dryer, inspect the flexible exhaust hose at the back. Make sure it isn’t kinked, crushed, or more than about 2 metres long without bends. A restricted duct traps heat inside the drum and can cause F01.

Step 6 – Check for obvious loose wiring at the back of the machine: With the dryer unplugged from the wall, carefully pull it away from the wall and visually inspect the back panel for any obviously loose or disconnected wiring. Do not remove any panels or touch internal components — this step is visual only. If you spot a clearly detached connector, note it to describe to an engineer.

Step 7 – Test the NTC thermistor (only if confident with a multimeter): If you’re comfortable using a multimeter and are willing to access the inside of the machine, the NTC thermistor can be tested for resistance. On AEG dryers, a healthy NTC sensor typically reads around 5–10 kΩ at room temperature. A reading of zero (short circuit) or infinite resistance (open circuit) confirms the sensor has failed. Replacement NTC sensors for AEG dryers cost £10–£25 and are widely available from AEG spares stockists such as 4ourhouse, eSpares, or Qualtex. Part numbers vary by model — always use your full model number (found on the rating plate inside the door frame) to source the correct part. WARNING: Only open the appliance if you are confident doing so safely. Always unplug the machine first. If in doubt, skip this step and call a professional.

Step 8 – Replace the NTC thermistor (DIY-capable homeowners only): If testing confirms the sensor has failed, replacing it is a relatively straightforward job on most AEG dryer models. The sensor is typically clipped or screwed onto the heating element housing or heat pump evaporator. Unplug the old sensor’s connector, unclip or unscrew the sensor, fit the new one in reverse order, and reconnect the wiring. Run a test cycle and check if F01 has cleared. Again — only attempt this with the machine fully unplugged and if you’re comfortable working inside appliances.

Step 9 – If F01 returns after sensor replacement, stop and call a professional: A persistent F01 after a confirmed sensor replacement points to either a wiring harness fault or a failed main PCB — neither of which is a safe or cost-effective DIY repair. At this point, you need a qualified appliance engineer.