Dishwasher
E19
The E19 error code on a Miele dishwasher indicates a fault with the flow heater or its associated temperature sensor — it’s a moderately serious fault that will stop your dishwasher from completing a cycle until resolved.
What does this error mean?
The E19 code signals that the dishwasher’s control board has detected a problem with the flow heater (the component that heats water as it circulates) or the NTC temperature sensor that monitors it. In practice, the machine either cannot heat the water to the required temperature or is receiving an implausible temperature reading. Miele dishwashers are engineered to halt operation rather than run a cold or dangerously overheated cycle, so E19 is a protective shutdown.
Est. repair cost
£80–£200 for professional repair (NTC sensor or flow heater + labour); NTC sensor DIY part £15–£35 if you have the skills
🔍 Likely causes
🛠️ Step-by-step fix
Reset the machine first: switch the dishwasher off at the mains, wait 10 minutes, then power it back on and run a short cycle. A one-off glitch can trigger E19 and a reset sometimes clears it.
Check and clean the filter and spray arms. A heavily blocked filter forces the pump and heater to work harder, occasionally tripping a thermal cutout. Remove, rinse, and refit the filter assembly before testing again.
Run a Miele-approved dishwasher descaler (such as Miele Dishwasher Cleaner or a citric acid tablet) on an empty hot cycle. Limescale coating the flow heater is a known cause of thermal cutout trips on hard-water areas like London and the South East.
Inspect the door seal and base of the machine for any signs of water leak. A persistent E19 alongside visible water pooling may indicate a secondary fault stressing the heater circuit — do not continue using the machine if water is leaking.
If the error returns after steps 1–4, the fault is most likely a failed NTC sensor or flow heater. These are internal electrical components: do not attempt to open the machine’s base panel or disconnect wiring unless you are a qualified appliance engineer.
📞 When to call a professional
If the E19 error persists after a reset and descale, call a Miele-approved or Trustmark-registered appliance engineer. Tell them: ‘My Miele dishwasher is displaying E19 — I suspect a flow heater or NTC temperature sensor fault.’ This gives them enough information to arrive with the right parts, potentially saving a second call-out.
⚖️ Repair or replace?
A professional repair — typically replacing the NTC sensor (cheaper) or flow heater (more involved) — costs £80–£200 including labour in the UK. Miele machines are built to last 20 years, so if yours is under 12 years old, repair is almost always worthwhile. If the machine is over 15 years old and has had previous repairs, a replacement Miele (from around £700) may offer better long-term value.