What E28 actually means
The machine isn't getting confirmation that the door has locked, so it refuses to start the wash.
Before any Grundig washer will fill and run, the control board has to see a signal back from the door interlock telling it the door is locked shut. On E28 that confirmation signal never arrives, so the cycle is halted at the very start. The usual symptom is a machine that appears dead in the water — the door may click but nothing else happens, and no water goes in.
What usually causes it
- Fault on the main control board, which is what Grundig's own diagnosis flow points to for this code
- Faulty door lock (interlock) unit not reporting back
- Damaged or loose wiring between the door lock and the board
- Door not physically closing far enough for the lock to engage
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.
- Push the door firmly shut and listen for the lock to click, then try starting a programme again
- Check nothing is trapped in the door seal or caught in the catch — a sleeve or a bra strap will hold the door off
- Turn the machine off at the wall for a minute, then power up and retry; the odd one-off signal glitch will clear
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 E03 — The machine has spotted that the heating element is staying …
- 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…
