Tumble Dryer
F05
The F05 error code on an Electrolux tumble dryer indicates a problem with the NTC temperature sensor or a related overheating fault — it’s a moderately serious issue that will stop your dryer from running until it’s resolved.
What does this error mean?
The F05 code tells you the dryer’s control board has detected an abnormal temperature reading from the NTC (Negative Temperature Coefficient) sensor, which monitors heat inside the drum. This could mean the sensor itself has failed, or that restricted airflow is causing the machine to overheat and trip a safety cutout. The dryer halts the cycle to protect itself and your home from a potential fire risk.
Est. repair cost
£80–£150 professional repair; £10–£25 DIY NTC sensor part only
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Power off and reset: Unplug the dryer from the mains and leave it for 10–15 minutes to cool fully, then plug back in and restart. A one-off thermal trip can sometimes clear itself.
Step 2 — Clean the lint filter: Remove the lint filter (usually inside the door opening), clear all fluff, and rinse the mesh under warm water if it’s coated. A blocked filter is the cause in a large proportion of F05 faults.
Step 3 — Check and clean the condenser (condenser models only): Open the condenser flap at the bottom front of the machine, slide out the condenser unit, and rinse it thoroughly under a cold tap until the water runs clear. Refit securely.
Step 4 — Inspect the exhaust hose (vented models only): Check the hose at the back of the machine is not kinked, crushed, or pushed too far into the wall vent. The hose run should be as short and straight as possible.
Step 5 — Test the NTC sensor resistance: If the above steps don’t clear the code, the NTC sensor can be tested with a multimeter (unplug the machine first). A healthy NTC sensor typically reads around 10kΩ at room temperature — consult your model’s service manual for the exact value. Replacement sensors cost £10–£25 online (search your full model number). Replacing the sensor involves removing the back or top panel; only attempt this if you are comfortable with basic appliance disassembly.
Step 6 — Do not attempt to bypass or replace the thermal cutout yourself: If you suspect the thermal overload cutout has tripped permanently, this part must be replaced by a qualified appliance engineer — incorrect replacement can create a fire hazard.
📞 When to call a professional
Call a qualified appliance engineer if the error returns after cleaning all filters and vents, or if you’ve identified the NTC sensor or thermal cutout as the likely fault but aren’t confident disassembling the machine. Tell the engineer: ‘My Electrolux tumble dryer is showing an F05 error — I’ve cleaned the filters and checked the venting, and I suspect either the NTC temperature sensor or the thermal cutout has failed.’ This gives them a strong starting point and may reduce call-out time.
⚖️ Repair or replace?
A professional repair for an F05 fault — typically sensor or thermostat replacement — will cost £80–£150 including parts and labour in the UK. If your Electrolux dryer is under 5 years old, repair is almost always worthwhile. If it’s 8 years or older and has had previous faults, a new condenser dryer from £250–£350 may be more economical in the long run given rising energy efficiency standards.