Tumble Dryer
E12
The E12 error code on a Hotpoint tumble dryer signals a problem with the appliance’s heating circuit — specifically, that the dryer is running but not generating enough heat within the expected timeframe. It’s a moderately serious fault that will prevent your laundry from drying properly, but in many cases it’s fixable at home.
What does this error mean?
The E12 code means the dryer’s control board has detected that the drum temperature isn’t rising as it should during a cycle. The machine runs a heat-up check shortly after starting, and if the internal temperature doesn’t reach the target within a set window, it throws the E12 fault and stops. This is the dryer protecting itself — and your clothes — from a cycle that would run indefinitely without actually drying anything.
Est. repair cost
£80–£150 professional repair; £5–£40 DIY parts (thermal cutout, NTC sensor, or heating element depending on fault)
🔍 Likely causes
🛠️ Step-by-step fix
Reset the dryer: switch it off at the wall, wait 60 seconds, then switch back on and run a short cycle. A one-off electronic glitch can trigger E12 and a reset clears it.
Clean the lint filter thoroughly: remove it, clear all fluff under running water if it’s a mesh type, let it dry completely, and refit. Do this after every single load — a blocked filter is the number-one cause of E12.
Check and clean the condenser (heat pump or condenser models): unclip the condenser unit from the bottom of the machine, rinse it under a tap until water runs clear, leave to dry fully, then refit. Refer to your model’s manual for its exact location.
Inspect the exhaust duct (vented models only): disconnect the flexible hose from the back of the machine and check it isn’t crushed, kinked, or blocked with fluff. Clear any blockage and ensure the external wall vent flap opens freely.
Check the thermal cutout: if cleaning airways didn’t fix it, the thermal cutout (a small safety fuse on the heater assembly) may have blown. With the dryer unplugged, locate the cutout on the heater housing — it costs around £5–£15 and can be replaced with a screwdriver if you’re comfortable with basic appliance DIY. Test for continuity with a multimeter before ordering a part.
If none of the above resolves the fault, do not open the main control board or attempt to bypass the heating circuit — stop here and call an engineer.
📞 When to call a professional
Call a qualified appliance engineer if the E12 persists after cleaning all filters and airways, or if your multimeter shows the heating element has no continuity (open circuit). Tell the engineer: ‘My Hotpoint tumble dryer is showing error code E12 — the airways are clear but it’s still not heating.’ This gives them a strong starting point and could save you a diagnostic call-out charge.
⚖️ Repair or replace?
A professional repair for E12 — typically a heating element, thermal cutout, or NTC sensor replacement — usually costs £80–£150 including parts and labour at UK market rates. If your dryer is under 5 years old, repair is almost always worth it. If it’s 8 years or older and out of warranty, weigh the repair cost against a new mid-range condenser dryer at £250–£400 — particularly if this isn’t the first fault.