Dishwasher
E11
The E11 error code on a Miele dishwasher signals a heating fault — the appliance isn’t reaching the correct water temperature during a wash cycle. It’s a moderately serious fault that will stop your dishwasher from cleaning properly, but in many cases it’s fixable without a call-out.
What does this error mean?
Miele’s E11 code means the dishwasher’s control board has detected that the water temperature isn’t rising as expected within a set time window. The machine monitors water temperature throughout the cycle, and if it falls short of the target — typically between 55°C and 75°C depending on the programme — it throws E11 and halts. This is a protective measure to prevent poorly sanitised washes rather than a catastrophic breakdown.
Est. repair cost
£80–£180 professional repair (heater or NTC sensor replacement); £15–£45 DIY if replacing the NTC sensor only
🔍 Likely causes
🛠️ Step-by-step fix
Reset the dishwasher: Turn it off at the mains socket, wait 60 seconds, then switch back on and run a short cycle. A transient software glitch can trigger E11 and a reset clears it.
Check and run a descale cycle: If you’re in a hard-water area and haven’t descaled recently, add a dishwasher descaler (e.g. Miele’s own or a supermarket equivalent) and run the machine’s intensive or 70°C programme. Heavy limescale on the heater can cause it to underperform.
Inspect and clean the filters: Remove the coarse and fine filters at the base of the machine and rinse under the tap. Blocked filters restrict water flow, which can reduce heating efficiency and trigger temperature faults.
Check the salt reservoir: Ensure the water softener salt is topped up. In hard-water areas, low salt accelerates limescale accumulation on the heater.
Test the NTC sensor resistance (if you’re comfortable with a multimeter): Disconnect the machine from the mains. Access the NTC sensor (usually clipped to the sump or heater housing — consult your Miele model’s service diagram). A healthy NTC sensor typically reads around 10kΩ at 20°C. A reading of zero or infinite resistance means a faulty sensor — this is a DIY-replaceable part.
Do NOT attempt to open the control board housing or replace the flow heater yourself unless you are a qualified electrician — these steps require working near mains-voltage components and should be left to a professional.
📞 When to call a professional
If the error persists after a reset, descale, and filter clean, the fault almost certainly lies with the flow heater, NTC sensor, or wiring — call a Miele-approved engineer or a reputable local appliance repair technician. Tell them: ‘My Miele dishwasher is showing error code E11, and basic resets haven’t cleared it — I suspect a heater or NTC sensor fault.’ If your machine is still under Miele’s warranty (typically two years standard, or up to ten years with a Miele care plan), contact Miele UK directly on 0330 160 6630 before paying for a third-party repair.
⚖️ Repair or replace?
A professional repair for E11 — typically replacing the flow heater or NTC sensor — costs £80–£180 in the UK including parts and labour. If your Miele dishwasher is under seven years old, repair is almost always the right call; Miele machines are built to last 20 years and spares are well-supported. If the machine is over ten years old and the control board is also suspect, weigh repair cost against a new mid-range Miele dishwasher (£700–£1,100), but a single heater replacement on an older Miele is still usually worth doing.