Dishwasher
E5
The E5 error code on a Miele dishwasher indicates a water heating fault — specifically that the appliance is not reaching the correct wash temperature within the expected time. It’s a moderately serious fault that will stop your dishwasher from completing a cycle but rarely requires an emergency call-out.
What does this error mean?
Miele’s E5 code means the dishwasher’s control board has detected that the water temperature is not rising as it should during a wash programme. The machine monitors how quickly the heating element brings water up to the target temperature, and if it takes too long — or doesn’t get there at all — it triggers E5 and halts the cycle. This protects your dishes from an ineffective wash and prevents the heating element from burning out.
Est. repair cost
£80–£180 professional repair; £15–£80 DIY parts (element or NTC sensor) if self-repairing
🔍 Likely causes
🛠️ Step-by-step fix
Reset the machine: Turn the dishwasher off at the mains, wait 60 seconds, then switch it back on. Select a hot programme (e.g. 65°C or 70°C) and run it. A one-off E5 caused by a temporary voltage dip will often clear at this stage.
Check the filter and spray arms: A blocked filter or clogged spray arms reduce water circulation, which can indirectly affect heating efficiency. Remove and rinse the filter under the tap, and clear any debris from the spray arm holes with a cocktail stick.
Run a hot programme in winter: If the error appeared in cold weather, try running the hot (Pots & Pans or Intensive) programme. If E5 disappears, the incoming water temperature was the culprit — no repair needed.
Test the heating element for continuity (DIY-safe for competent users): After isolating the machine from the mains, remove the lower spray arm and filter basket to access the element at the base of the drum. Use a multimeter set to resistance (Ω) — a working element typically reads 20–30Ω. An open circuit (OL/infinite resistance) confirms the element has failed and needs replacing. Miele heating elements cost approximately £40–£80 for the part.
Inspect the NTC sensor: The NTC thermistor on most Miele dishwashers is located near the sump or heating element. With the machine isolated, disconnect the sensor and test resistance with a multimeter — it should read around 5kΩ at room temperature. A reading of 0Ω or OL suggests a faulty sensor; replacement parts typically cost £15–£35.
If the above checks pass, stop DIY work: A circulation pump or control board fault requires disassembly beyond what’s safe for most homeowners. Call a Miele-approved or appliance repair engineer at this point.
📞 When to call a professional
If resetting the machine and cleaning the filters doesn’t clear the E5 code, and you’re not comfortable using a multimeter to test the element or NTC sensor, call a qualified appliance repair engineer. Tell them: ‘My Miele dishwasher is displaying an E5 fault — I believe it’s a heating or temperature sensor issue.’ If your machine is still under Miele’s warranty (typically 2 years standard, up to 5 years if registered), contact Miele UK directly on 0330 160 6600 before attempting any DIY, as repairs could void your cover.
⚖️ Repair or replace?
A professional repair for an E5 fault — typically a heating element or NTC sensor replacement — will cost £80–£180 including labour in the UK. If your Miele dishwasher is under 7 years old, repair is almost always the better financial choice; Miele machines are built to last 20 years and parts are well-supported. If the machine is over 10 years old and the control board is at fault (repair cost £150–£250+), replacing with a new mid-range Miele (from around £700) may make more sense long-term.