What E15 actually means
The dryer has stopped because the heating circuit isn't behaving as the control board expects — on condenser models that's the heater relay, on vented models it's the front thermal cut-out having tripped.
The control board switches the heater on and off through a relay and watches for the expected response. If the relay stays stuck closed ("glued") or, on vented machines, the front thermal overload cut-out has opened, the board shuts the cycle down and shows E15 — often with all the lights flashing together. It's a heat-related safety stop, so it won't let the programme carry on.
What usually causes it
- Heater relay on the control board stuck closed
- Front thermal overload cut-out tripped on vented models, usually after restricted airflow
- Blocked fluff filter or clogged condenser causing overheating
- Faulty heater element or its wiring
- Failed power/programme board
What you can safely check yourself
Work through these in order. Anything beyond this — panels off, testing parts, anything to do with the wiring — is an engineer's job, and not one to attempt with the machine plugged in.
- Turn the dryer off at the wall for a minute, then power it back up and see if the code returns
- Clean the fluff filter thoroughly, including the mesh
- On condenser models, remove and rinse the condenser and clear any fluff from its housing
- Make sure the machine has clear air around it and, on vented models, that the hose isn't kinked, crushed or blocked and the outside vent flap moves freely
- Empty the water container
When to call someone
This one usually needs an engineer once you have tried the checks above. We cover Nottinghamshire, Derbyshire and Leicestershire, and it's £66 including VAT for an engineer to come out and diagnose it — £84 in total if it's repaired on the visit with no parts needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.
Outside our area? The explanation above still stands — take it to a local engineer and tell them the code. Knowing it saves them time and you money.
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