What E03 actually means
The machine has spotted that the heating element is staying on when it shouldn't, so it has stopped the wash to avoid boiling your laundry.
Grundig's control board watches the heater and expects to be able to switch it off once the water reaches the set temperature. With E03 it has found the heater still drawing power outside of the heating stage, so it halts the programme rather than let the water keep climbing. The classic customer complaint alongside this code is laundry coming out far too hot and looking worn or faded.
What usually causes it
- A failed heater relay or triac on the main control board sticking in the 'on' position
- A wiring fault to the heating element keeping it live
- A faulty temperature sensor (NTC) misreading the water temperature
- A damaged control board after a power surge
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 machine off at the wall for a minute, then power it back up and see if the code returns on a short cold wash.
- Note whether the laundry or the door glass is unusually hot — that detail helps the engineer confirm the diagnosis.
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.
Other Grundig washing machine codes
- Grundig E02 — The machine can't heat the water he heating element, so it …
- Grundig E04 — The machine has spotted that the part of the control board w…
- Grundig E05 — The machine can't get the water out — the drain pump either …
- Grundig E07 — The machine can't get a sensible reading from the sensor tha…
- Grundig E08 — The machine hasn't got enough water in the drum in the time …
- Grundig E09 — The machine can't lock the door, so it refuses to start fill…
- Grundig E10 — The machine has spotted a fault in the circuit on its main c…
- Grundig E11 — The machine has lost a proper electrical connection to the d…